def main():
ble.clear_cached_data()
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using : {0}'.format(adapter.name))
ble.disconnect_devices([UART_SERVICE])
adapter.start_scan()
time.sleep(5)
devices = ble.find_devices(service_uuids=[UART_SERVICE])
time.sleep(5)
gong = None
for device in devices:
print('Found device: {0}, id: {1}'.format(device.name, device.id))
if device.name == 'BLEGong':
print 'Found gong', device.id,
gong = device
adapter.stop_scan()
break
gong.connect()
print ('Gong Connected')
UART.discover(gong)
print 'Gong Discovered'
gong_uart = UART(gong)
adapter.power_off()
print 'Disconnected'
def main():
ble.clear_cached_data()
global device
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
print('Searching for UART device...')
try:
adapter.start_scan()
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
finally:
adapter.stop_scan()
print('Connecting to device...')
device.connect()
print('Discovering services...')
UART.discover(device)
uart = UART(device)
line = ''
timer = time.time()
while True:
received = uart.read(timeout_sec=1)
if received is not None:
timer = time.time()
line = ''.join([line, received])
else:
if (time.time() - timer) > 1 and line != '':
print('{0} {1}'.format('line is: ', line))
line = ''
def main():
# Clear any cached data because both bluez and CoreBluetooth have issues with
# caching data and it going stale.
ble.clear_cached_data()
# Get the first available BLE network adapter and make sure it's powered on.
adapter = ble.get_default_adapter()
# adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
# Disconnect any currently connected UART devices. Good for cleaning up and
# starting from a fresh state.
print('Disconnecting any connected UART devices...')
UART.disconnect_devices()
# Scan for UART devices.
print('Searching for UART device...')
try:
adapter.start_scan()
# Search for the first UART device found (will time out after 60 seconds
# but you can specify an optional timeout_sec parameter to change it).
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
else:
print 'uart device is gevonden'
finally:
# Make sure scanning is stopped before exiting.
adapter.stop_scan()
print('Connecting to device...')
device.connect(
) # Will time out after 60 seconds, specify timeout_sec parameter
# to change the timeout.
# Once connected do everything else in a try/finally to make sure the device
# is disconnected when done.
try:
# Wait for service discovery to complete for the DIS service. Will
# time out after 60 seconds (specify timeout_sec parameter to override).
print('Discovering services...')
DeviceInformation.discover(device)
# Once service discovery is complete create an instance of the service
# and start interacting with it.
dis = DeviceInformation(device)
# Print out the DIS characteristics.
print('Manufacturer: {0}'.format(dis.manufacturer))
print('Model: {0}'.format(dis.model))
print('Serial: {0}'.format(dis.serial))
print('Hardware Revision: {0}'.format(dis.hw_revision))
print('Software Revision: {0}'.format(dis.sw_revision))
print('Firmware Revision: {0}'.format(dis.fw_revision))
print('System ID: {0}'.format(dis.system_id))
print('Regulatory Cert: {0}'.format(dis.regulatory_cert))
print('PnP ID: {0}'.format(dis.pnp_id))
finally:
# Make sure device is disconnected on exit.
device.disconnect()
def main():
# Clear any cached data because both bluez and CoreBluetooth have issues with
# caching data and it going stale.
ble.clear_cached_data()
# Get the first available BLE network adapter and make sure it's powered on.
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
# Disconnect any currently connected UART devices. Good for cleaning up and
# starting from a fresh state.
print('Disconnecting any connected UART devices...')
UART.disconnect_devices()
# Scan for UART devices.
print('Searching for UART device...')
try:
adapter.start_scan()
# Search for the first UART device found (will time out after 60 seconds
# but you can specify an optional timeout_sec parameter to change it).
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
finally:
# Make sure scanning is stopped before exiting.
adapter.stop_scan()
print('Connecting to device...')
device.connect() # Will time out after 60 seconds, specify timeout_sec parameter
# to change the timeout.
# Once connected do everything else in a try/finally to make sure the device
# is disconnected when done.
try:
# Wait for service discovery to complete for the UART service. Will
# time out after 60 seconds (specify timeout_sec parameter to override).
print('Discovering services...')
UART.discover(device)
# Once service discovery is complete create an instance of the service
# and start interacting with it.
uart = UART(device)
# Write a string to the TX characteristic.
uart.write(b'Hello world!\r\n')
print("Sent 'Hello world!' to the device.")
# Now wait up to one minute to receive data from the device.
print('Waiting up to 60 seconds to receive data from the device...')
received = uart.read(timeout_sec=60)
if received is not None:
# Received data, print it out.
print('Received: {0}'.format(received))
else:
# Timeout waiting for data, None is returned.
print('Received no data!')
finally:
# Make sure device is disconnected on exit.
device.disconnect()
def initBle():
# Clear any cached data because both bluez and CoreBluetooth have issues with
# caching data and it going stale.
ble.clear_cached_data()
# Get the first available BLE network adapter and make sure it's powered on.
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
# Disconnect any currently connected UART devices. Good for cleaning up and
# starting from a fresh state.
print('Disconnecting any connected UART devices...')
UART.disconnect_devices()
# Scan for UART devices.
print('Searching for UART device...')
try:
adapter.start_scan()
# Search for the first UART device found (will time out after 60 seconds
# but you can specify an optional timeout_sec parameter to change it).
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
finally:
# Make sure scanning is stopped before exiting.
adapter.stop_scan()
print('Connecting to device...')
device.connect(
) # Will time out after 60 seconds, specify timeout_sec parameter
# to change the timeout.
return device
def connectDevice():
'''
Connects to the Adafruit Bluefruit Module and return the object for that device
'''
#clear any cached data
ble.clear_cached_data()
#get BLE adapter
adapter = ble.get_default_adapter()
adapter.power_on()
print("[ Using adapter: {0} ]".format(adapter.name))
#disconnet any connected UART devices
UART.disconnect_devices()
#scan for UART devices
print("Scanning for UART devices...")
try:
adapter.start_scan()
device = UART.find_device()
if device is None:
raise RuntimeError("Failed to find any UART device!")
finally:
adapter.stop_scan()
print("Connecting to device...")
device.connect()
return device
def main():
device = initBle()
initDrone()
# Once connected do everything else in a try/finally to make sure the device
# is disconnected when done.
try:
# Wait for service discovery to complete for the UART service. Will
# time out after 60 seconds (specify timeout_sec parameter to override).
print('Discovering services...')
UART.discover(device)
# Once service discovery is complete create an instance of the service
# and start interacting with it.
uart = UART(device)
# Write a string to the TX characteristic.
#uart.write(b'Hello world!\r\n')
#print("Sent 'Hello world!' to the device.")
# Now wait up to one minute to receive data from the device.
while True:
#print('Waiting up to 60 seconds to receive data from the device...')
received = uart.read(timeout_sec=60)
if received is not None:
# Received data, print it out.
print('Received: {0}'.format(received))
else:
# Timeout waiting for data, None is returned.
print('Received no data!')
sendCommandDrone(received)
finally:
# Make sure device is disconnected on exit.
device.disconnect()
def close(self):
self.stoprequest.set()
try:
UART.disconnect_devices()
# self.device.disconnect()
logger.info('connection lost')
except:
print('mimsy')
def __init__(self):
# protected region initCode on begin #
# Clear any cached data because both bluez and CoreBluetooth have issues with
# caching data and it going stale.
ble.clear_cached_data()
# Get the first available BLE network adapter and make sure it's powered on.
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
# Disconnect any currently connected UART devices. Good for cleaning up and
# starting from a fresh state.
print('Disconnecting any connected UART devices...')
UART.disconnect_devices()
# Scan for UART devices.
print('Searching for UART device...')
try:
adapter.start_scan()
# Search for the first UART device found (will time out after 60 seconds
# but you can specify an optional timeout_sec parameter to change it).
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
finally:
# Make sure scanning is stopped before exiting.
adapter.stop_scan()
print('Connecting to device...')
device.connect() # Will time out after 60 seconds, specify timeout_sec parameter
# to change the timeout.
# Once connected do everything else in a try/finally to make sure the device
# is disconnected when done.
try:
# Wait for service discovery to complete for the UART service. Will
# time out after 60 seconds (specify timeout_sec parameter to override).
print('Discovering services...')
UART.discover(device)
# Once service discovery is complete create an instance of the service
# and start interacting with it.
uart = UART(device)
print('uart = UART(device)')
finally:
# Make sure device is disconnected on exit.
device.disconnect()
print('device.disconnect()')
# protected region initCode end #
pass
def main():
# Clear any cached data because both bluez and CoreBluetooth have issues with
# caching data and it going stale.
ble.clear_cached_data()
# Get the first available BLE network adapter and make sure it's powered on.
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
# Disconnect any currently connected UART devices. Good for cleaning up and
# starting from a fresh state.
print('Disconnecting any connected UART devices...')
UART.disconnect_devices()
# Scan for UART devices.
print('Searching for UART device...')
try:
adapter.start_scan()
# Search for the first UART device found (will time out after 60 seconds
# but you can specify an optional timeout_sec parameter to change it).
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
finally:
# Make sure scanning is stopped before exiting.
adapter.stop_scan()
print('Connecting to device...')
device.connect() # Will time out after 60 seconds, specify timeout_sec parameter
# to change the timeout.
# Once connected do everything else in a try/finally to make sure the device
# is disconnected when done.
try:
# Wait for service discovery to complete for the DIS service. Will
# time out after 60 seconds (specify timeout_sec parameter to override).
print('Discovering services...')
DeviceInformation.discover(device)
# Once service discovery is complete create an instance of the service
# and start interacting with it.
dis = DeviceInformation(device)
# Print out the DIS characteristics.
print('Manufacturer: {0}'.format(dis.manufacturer))
print('Model: {0}'.format(dis.model))
print('Serial: {0}'.format(dis.serial))
print('Hardware Revision: {0}'.format(dis.hw_revision))
print('Software Revision: {0}'.format(dis.sw_revision))
print('Firmware Revision: {0}'.format(dis.fw_revision))
print('System ID: {0}'.format(dis.system_id))
print('Regulatory Cert: {0}'.format(dis.regulatory_cert))
print('PnP ID: {0}'.format(dis.pnp_id))
finally:
# Make sure device is disconnected on exit.
device.disconnect()
def __init__(self, device, index):
self.device = device
self.osc = OSC.OSCClient()
self.osc.connect(("127.0.0.1", BASE_PORT + index))
device.connect()
UART.discover(self.device)
self.uart = UART(self.device)
self.index = index
def setup_uart(self, device):
print('Discovering services...')
# Discover the services and create a uart object
UART.discover(device)
# Once service discovery is complete create an instance of the service
# and start interacting with it.
uart = UART(device)
return uart
def setup(self):
# Clear any cached data, prevent from going stale
self.ble.clear_cached_data()
# Get a BLE network adapter and turn it on
self.adapter = self.ble.get_default_adapter()
self.adapter.power_on()
# Disconnect from any uart devices
UART.disconnect_devices()
def BLE():
# Clear any cached data because both bluez and CoreBluetooth have issues with
# caching data and it going stale.
ble.clear_cached_data()
# Get the first available BLE network adapter and make sure it's powered on.
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
# Disconnect any currently connected UART devices. Good for cleaning up and
# starting from a fresh state.
print('Disconnecting any connected UART devices...')
UART.disconnect_devices()
# Scan for UART devices.
print('Searching for UART device...')
try:
adapter.start_scan()
# Search for the first UART device found (will time out after 60 seconds
# but you can specify an optional timeout_sec parameter to change it).
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
finally:
# Make sure scanning is stopped before exiting.
adapter.stop_scan()
print('Connecting to device...')
device.connect() # Will time out after 60 seconds, specify timeout_sec parameter
# to change the timeout.
# Once connected do everything else in a try/finally to make sure the device
# is disconnected when done.
try:
# Wait for service discovery to complete for the UART service. Will
# time out after 60 seconds (specify timeout_sec parameter to override).
print('Discovering services...')
UART.discover(device)
# Once service discovery is complete create an instance of the service
# and start interacting with it.
uart = UART(device)
# Write a string to the TX characteristic.
uart.write('Hello world!\r\n')
print("Sent 'Hello world!' to the device.")
# Now wait up to one minute to receive data from the device.
print('Waiting up to 60 seconds to receive data from the device...')
received = uart.read(timeout_sec=60)
if received is not None:
# Received data, print it out.
print('Received: {0}'.format(received))
else:
# Timeout waiting for data, None is returned.
print('Received no data!')
finally:
# Make sure device is disconnected on exit.
device.disconnect()
def ble_main():
global msg
ble.clear_cached_data()
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
print('Disconnecting any connected UART devices...')
UART.disconnect_devices()
print('Searching for UART device...')
try:
adapter.start_scan()
# Search for the first UART device found (will time out after 60 seconds
# but you can specify an optional timeout_sec parameter to change it).
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
finally:
# Make sure scanning is stopped before exiting.
adapter.stop_scan()
# Connect to first device
print('Connecting to device...')
device.connect() # Will time out after 60 seconds, specify timeout_sec parameter
# to change the timeout.
# Once connected do everything else in a try/finally to make sure the device
# is disconnected when done.
try:
# Wait for service discovery to complete for the UART service. Will
# time out after 60 seconds (specify timeout_sec parameter to override).
print('Discovering services...')
UART.discover(device)
# Once service discovery is complete create an instance of the service
# and start interacting with it.
uart = UART(device)
print('Connected')
client.loop_background()
while True:
received = uart.read(3)
if received is not None:
# Received data, print it out.
print('UART received: {0} Writing RED to MQTT'.format(received))
client.publish(FEED_PUB, 'RED')
#uart.write('GREEN\r\n')
# else:
# print('UART got nothing')
if msg is not None:
print('MQTT received: {0} Writing RED to UART'.format(msg))
uart.write('RED\r\n')
msg = None
# else:
# print('MQTT got nothing')
finally:
# Make sure device is disconnected on exit.
device.disconnect()
def main():
# Clear any cached data because both bluez and CoreBluetooth have issues with
# caching data and it going stale.
ble.clear_cached_data()
# Get the first available BLE network adapter and make sure it's powered on.
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
# Disconnect any currently connected UART devices. Good for cleaning up and
# starting from a fresh state.
print('Disconnecting any connected UART devices...')
UART.disconnect_devices()
print('Searching for device...')
connected_to_peripheral = False
test_iteration = 0
devices = scan_for_peripheral(adapter)
global total_len, done_xfer, data_service, out
for peripheral in devices:
try:
print("peripheral: ", peripheral.name)
peripheral.connect(timeout_sec=10)
connected_to_peripheral = True
test_iteration += 1
except BaseException as e:
print("Connection failed: " + str(e))
time.sleep(1)
print("Retrying...")
# print(peripheral.list_services())
# print(peripheral.id)
# print(peripheral._peripheral.identifier())
peripheral.discover([service_uuid],
[count_uuid, rw_uuid, spp_data_uuid])
service = peripheral.find_service(service_uuid)
count = service.find_characteristic(count_uuid)
rw = service.find_characteristic(rw_uuid)
data_service = service.find_characteristic(spp_data_uuid)
read_val = rw.read_value()
# print(service)
# print(service, count, rw)
print("rw: ", read_val)
count_raw = int.from_bytes(count.read_value(), byteorder='little')
print("count: ", count_raw)
rw.write_value(b'w')
print('rw.read_value()', rw.read_value())
def main():
ble.clear_cached_data()
adapter = ble.get_default_adapter()
adapter.power_on()
print('Adapter: {0}'.format(adapter.name))
adapter.start_scan()
atexit.register(adapter.stop_scan)
print('Scan for UART devices started, press Ctrl-C to quit...')
known_uarts = set()
while True:
found = set(UART.find_devices())
new = found-known_uarts
for device in new:
# Under Raspbian there was an error regarding devices with no name,
# therefore checking type
if isinstance(device.name, dbus.String):
print('Found: [{0}] [{1}] {2}'.format(device.name, device.id, device.rssi))
# RSSI of -70 at 1m is a test value for now, calibration will be
# implemented later
print('Distance: {0}'.format(rssiToDist(device.rssi, -70)))
else:
print('Found: [{0}] {1}'.format(device.id, device.rssi))
print('Distance: {0}'.format(rssiToDist(device.rssi, -70)))
known_uarts.update(new)
time.sleep(1.0)
def main():
# Clear any cached data because both bluez and CoreBluetooth have issues with
# caching data and it going stale.
ble.clear_cached_data()
# Get the first available BLE network adapter and make sure it's powered on.
adapter = ble.get_default_adapter()
adapter.power_on()
print("Using adapter: {0}".format(adapter.name))
# Start scanning with the bluetooth adapter.
adapter.start_scan()
# Use atexit.register to call the adapter stop_scan function before quiting.
# This is good practice for calling cleanup code in this main function as
# a try/finally block might not be called since this is a background thread.
atexit.register(adapter.stop_scan)
print("Searching for UART devices...")
print("Press Ctrl-C to quit (will take ~30 seconds on OSX).")
# Enter a loop and print out whenever a new UART device is found.
known_uarts = set()
while True:
# Call UART.find_devices to get a list of any UART devices that
# have been found. This call will quickly return results and does
# not wait for devices to appear.
found = set(UART.find_devices())
# Check for new devices that haven't been seen yet and print out
# their name and ID (MAC address on Linux, GUID on OSX).
new = found - known_uarts
for device in new:
print("Found UART: {0} [{1}]".format(device.name, device.id))
known_uarts.update(new)
# Sleep for a second and see if new devices have appeared.
time.sleep(1.0)
def start_system():
global sensor_data
allowed_ids = [UUID("1c7c996c-79b0-47df-905a-93233d6fdc67")]
devices = getDevices(allowed_ids) # dict of uuid: device
# uarts are used to read and write data over bluetooth
uarts = {device.id: UART(device) for device in devices.values()}
packet_len = 20
uart_stream = UARTStream(devices[allowed_ids[0]], uarts[allowed_ids[0]])
# tracker = AccelTracker()
try:
# start data handlers
thread.start_new_thread(userInputHandler, ())
remote_handler = RemoteInputHandler()
remote_handler.start()
# spin until system is ready
while not system_ready(remote_handler):
if end_program or remote_handler.received_quit():
break
if not end_program and not remote_handler.received_quit():
# onlys start drums if user has not quit
start_drums(remote_handler,
uart_stream) # returns when received a quit signal
#except Exception as e:
# print(e)
# raise e
finally:
for device in devices.values():
device.disconnect()
# plotSensorData(sensor_data)
saveData(sensor_data)
def main():
# Clear any cached data because both bluez and CoreBluetooth have issues with
# caching data and it going stale.
ble.clear_cached_data()
# Get the first available BLE network adapter and make sure it's powered on.
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
# Start scanning with the bluetooth adapter.
adapter.start_scan()
# Use atexit.register to call the adapter stop_scan function before quiting.
# This is good practice for calling cleanup code in this main function as
# a try/finally block might not be called since this is a background thread.
atexit.register(adapter.stop_scan)
print('Searching for UART devices...')
print('Press Ctrl-C to quit (will take ~30 seconds on OSX).')
# Enter a loop and print out whenever a new UART device is found.
known_uarts = set()
while True:
# Call UART.find_devices to get a list of any UART devices that
# have been found. This call will quickly return results and does
# not wait for devices to appear.
found = set(UART.find_devices())
# Check for new devices that haven't been seen yet and print out
# their name and ID (MAC address on Linux, GUID on OSX).
new = found - known_uarts
for device in new:
print('Found UART: {0} [{1}]'.format(device.name, device.id))
known_uarts.update(new)
# Sleep for a second and see if new devices have appeared.
time.sleep(1.0)
def start(self):
""" Reset any lingering bluetooth state """
# Clear any cached data because both bluez and CoreBluetooth have issues
# with caching data and it going stale.
PROVIDER.clear_cached_data()
# Get the first available BLE network adapter
# and make sure it's powered on.
self.adapter = PROVIDER.get_default_adapter()
self.adapter.power_on()
print "Using adapter: {0}".format(self.adapter.name)
# Disconnect any currently connected UART devices.
# Good for cleaning up and tarting from a fresh state.
print "Disconnecting any connected UART devices..."
UART.disconnect_devices()
self.adapter.start_scan()
def _connect(self, adapter):
adapter.power_on()
logging.info('Disconnecting any connected UART devices...')
UART.disconnect_devices()
logging.info('Searching for UART device...')
try:
adapter.start_scan(timeout_sec=100)
self._device = platform.get_provider().find_device(name='BerryMed')
finally:
# Make sure scanning is stopped before exiting.
adapter.stop_scan()
if not self._device:
raise RuntimeError("Couldn't find BerryMed pulse meter.")
logging.info('Connecting to device...')
logging.info('Device id: %s', str(self._device.id))
self._device.connect() # with default timeout 60 seconds.
logging.info('Successfully connected.')
def mainBluetooth():
global sendCommand
global confirmation
# Clear any cached data
ble.clear_cached_data()
# Get first available adapter and make sure it is powered on
adapter = ble.get_default_adapter()
adapter.power_on()
print("Using adapter: {0}".format(adapter.name))
# Disconnect any currently connected devices
print("Disconnecting any connected UART devices...")
UART.disconnect_devices()
# Scan for UART devices
print("Searching for UART device...")
try:
adapter.start_scan()
device = UART.find_device()
if device is None:
raise RuntimeError("Failed to find UART device!")
finally:
adapter.stop_scan()
print("Connecting to device...")
device.connect()
try:
print("Discovering services...")
UART.discover(device)
# Create instance to interact with
uart = UART(device)
sendCommand = sendCommand.encode()
uart.write(b"%b" % (sendCommand))
received = uart.read(timeout_sec=10)
if received is not None:
print("Received: {0}".format(received))
confirmation = "Received: " + received
else:
print("Received no data!")
confirmation = "Received no data!"
finally:
device.disconnect()
def main():
# Clear any cached data because both bluez and CoreBluetooth have issues with
# caching data and it going stale.
ble.clear_cached_data()
# Get the first available BLE network adapter and make sure it's powered on.
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
# Disconnect any currently connected UART devices. Good for cleaning up and
# starting from a fresh state.
print('Disconnecting any connected UART devices...')
UART.disconnect_devices()
# Scan for UART devices.
print('Searching for UART device...')
try:
adapter.start_scan()
# Search for the first UART device found (will time out after 60 seconds
# but you can specify an optional timeout_sec parameter to change it).
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
finally:
# Make sure scanning is stopped before exiting.
adapter.stop_scan()
print('Connecting to device...')
device.connect(
) # Will time out after 60 seconds, specify timeout_sec parameter
# to change the timeout.
print('Discovering services...')
UART.discover(device)
while True:
uart = UART(device)
receive = uart.read(timeout_sec=300) # 5min timeout
if receive:
sd = receive.split(",")
print("T: " + sd[0] + " H: " + sd[1] + " Li: " + sd[2] + " Lux: " +
sd[3] + " N: " + sd[4] + " HR: " + sd[5])
else:
continue
if len(sd) == 6:
aio.send('Temperature', sd[0])
aio.send('Humidity', sd[1])
aio.send('Light', sd[2])
aio.send('Lux', sd[3])
aio.send('Noise', sd[4])
aio.send('Heart Rate', sd[5])
else:
continue
def __setup_thread(self):
# Service and Character UUID's
UART_SERVICE_UUID = uuid.UUID('6E400001-B5A3-F393-E0A9-E50E24DCCA9E')
TX_CHAR_UUID = uuid.UUID('6E400002-B5A3-F393-E0A9-E50E24DCCA9E')
RX_CHAR_UUID = uuid.UUID('6E400003-B5A3-F393-E0A9-E50E24DCCA9E')
SENSE_SERVICE_UUID = uuid.UUID('00006969-6969-6969-6969-696969696969')
RSSI_CHAR_UUID = uuid.UUID('00000420-0000-1000-8000-00805f9b34fb')
TEMP_CHAR_UUID = uuid.UUID('00000421-0000-1000-8000-00805f9b34fb')
PRESS_CHAR_UUID = uuid.UUID('00000422-0000-1000-8000-00805f9b34fb')
HUM_CHAR_UUID = uuid.UUID('00000423-0000-1000-8000-00805f9b34fb')
GAS_CHAR_UUID = uuid.UUID('00000424-0000-1000-8000-00805f9b34fb')
ALT_CHAR_UUID = uuid.UUID('00000425-0000-1000-8000-00805f9b34fb')
self.ble.clear_cached_data()
# get adapter and power on
adapter = self.ble.get_default_adapter()
adapter.power_on()
# Disconnect currently connected devices
self.ble.disconnect_devices()
# Connect to UART device
try:
print('Scanning for devices...')
adapter.start_scan()
self.device = UART.find_device()
if self.device is None:
raise RuntimeError('Failed to find UART device!')
finally:
adapter.stop_scan()
self.device.connect()
# Discover Services and Characteristics
print('Discovering...')
self.device.discover([SENSE_SERVICE_UUID], [
RSSI_CHAR_UUID, TEMP_CHAR_UUID, PRESS_CHAR_UUID, HUM_CHAR_UUID,
GAS_CHAR_UUID, ALT_CHAR_UUID
])
# Find Services and Characteristics
print('Finding services...')
sensors = self.device.find_service(SENSE_SERVICE_UUID)
self.chars = {
"rssi": sensors.find_characteristic(RSSI_CHAR_UUID),
"temp": sensors.find_characteristic(TEMP_CHAR_UUID),
"pressure": sensors.find_characteristic(PRESS_CHAR_UUID),
"humidity": sensors.find_characteristic(HUM_CHAR_UUID),
"gas": sensors.find_characteristic(GAS_CHAR_UUID),
"alt": sensors.find_characteristic(ALT_CHAR_UUID)
}
file = open("rfOutput.csv", "w")
file.write(
'RSSI (dB),TEMP (*C),PRESSURE (hPa),HUMIDITY (%),GAS (KOhms),ALT (m)\n'
)
file.close()
print('rf setup')
def main():
ble.clear_cached_data()
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
print('Disconnecting any connected UART devices...')
UART.disconnect_devices()
print('Searching for UART device...')
try:
adapter.start_scan()
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
finally:
adapter.stop_scan()
print("Connecting to a UART device...")
device.connect()
print("Connected to " + device.name + "!")
# call method to launch gui, implement later
# getch library for sending stuff
# launchGUI()
try:
print('Discovering services...')
DeviceInformation.discover(device)
dis = DeviceInformation(device)
# Print out the DIS characteristics.
print('Manufacturer: {0}'.format(dis.manufacturer))
print('Model: {0}'.format(dis.model))
print('Serial: {0}'.format(dis.serial))
print('Hardware Revision: {0}'.format(dis.hw_revision))
print('Software Revision: {0}'.format(dis.sw_revision))
print('Firmware Revision: {0}'.format(dis.fw_revision))
print('System ID: {0}'.format(dis.system_id))
print('Regulatory Cert: {0}'.format(dis.regulatory_cert))
print('PnP ID: {0}'.format(dis.pnp_id))
finally:
device.disconnect()
def main():
ble.clear_cached_data()
global device
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
print('Searching for UART device...')
try:
adapter.start_scan()
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
finally:
adapter.stop_scan()
print('Connecting to device...')
device.connect()
print('Discovering services...')
UART.discover(device)
uart = UART(device)
line = ''
timer = time.time()
while True:
received = uart.read(timeout_sec=1)
if received is not None:
timer = time.time()
line = ''.join([line, received])
else:
if (time.time() - timer) > 1 and line != '':
print('{0} {1}'.format('line is: ', line))
line = ''
def get_device(ble, id):
print('Starting', id)
adapter = ble.get_default_adapter()
adapter.power_on()
adapter.start_scan()
atexit.register(adapter.stop_scan)
for _ in range(30):
found = set(UART.find_devices())
for device in found:
if str(device.id) == id:
adapter.stop_scan()
return device
time.sleep(1)
def getDevices(device_ids, timeout=20):
# Get the first available BLE network adapter and make sure it's powered on.
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
# Disconnect any currently connected UART devices. Good for cleaning up and
# starting from a fresh state.
print('Disconnecting any connected UART devices...')
UART.disconnect_devices()
# Scan for UART devices.
print('Searching for UART device...')
to_find = set(device_ids)
found = set()
try:
adapter.start_scan()
time_elapsed = 0
while (time_elapsed < timeout and len(found) < len(device_ids)):
devices = UART.find_devices()
for d in devices:
# d.id is a UUID object
if d.id in to_find: # check if id in id_set
found.add(d) # add device to found
time.sleep(1.0)
time_elapsed += 1
for device in found:
device.connect()
print("Discovering UART service for {}".format(device.id))
UART.discover(device)
except:
for device in found:
# Make sure device is disconnected
device.disconnect()
raise RuntimeError('Error Connecting to devices. Terminating ...')
finally:
# Make sure scanning is stopped before exiting.
adapter.stop_scan()
return {device.id: device for device in found}
def scan(self):
# Search for available UART devices
try:
self.adapter.start_scan()
# Make sure we stop scanning after the program is over
#atexit.register(self.adapter.stop_scan)
# Get the found UART devices
self.uarts = set(UART.find_devices())
finally:
# Finish scanning
self.adapter.stop_scan()
def connect(self, onFinished):
# Clear any cached data because both bluez and CoreBluetooth have issues with
# caching data and it going stale.
ble.clear_cached_data()
# Get the first available BLE network adapter and make sure it's powered on.
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
# Disconnect any currently connected UART devices. Good for cleaning up and
# starting from a fresh state.
print('Disconnecting any connected UART devices...')
UART.disconnect_devices()
# Scan for UART devices.
print('Searching for UART device...')
try:
adapter.start_scan()
# Search for the first UART device found (will time out after 60 seconds
# but you can specify an optional timeout_sec parameter to change it).
self.device = UART.find_device()
if self.device is None:
raise RuntimeError('Failed to find UART device!')
finally:
# Make sure scanning is stopped before exiting.
adapter.stop_scan()
print('Connecting to device...')
self.device.connect() # Will time out after 60 seconds, specify timeout_sec parameter
# to change the timeout.
# Once connected do everything else in a try/finally to make sure the device
# is disconnected when done.
success = False
try:
# Wait for service discovery to complete for the UART service. Will
# time out after 60 seconds (specify timeout_sec parameter to override).
print('Discovering services...')
UART.discover(self.device)
# Once service discovery is complete create an instance of the service
# and start interacting with it.
self.uart = UART(self.device)
success = True
except:
traceback.print_exc()
self.device.disconnect()
self.device = None
self.uart = None
finally:
# Make sure device is disconnected on exit.:
onFinished(success)
def list_bluetooth_devices(ble):
adapter = ble.get_default_adapter()
adapter.power_on()
adapter.start_scan()
atexit.register(adapter.stop_scan)
print('Searching for Bluetooth Devices:')
known = set()
for _ in range(30):
found = set(UART.find_devices())
for device in found - known:
print(device.id, device.name)
known |= found
time.sleep(1)
adapter.stop_scan()
def main():
ble.clear_cached_data()
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
device = None
packet_source = PacketSource(config)
UART.disconnect_devices()
while True:
try:
print('Connecting to device...')
adapter.start_scan()
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
device.connect()
UART.discover(device)
uart = UART(device)
for packet in packet_source.read_packets():
debug('Sending packet: value={0}, metric={1}, timestamp={2}'.
format(packet.value, packet.metric, packet.timestamp))
uart.write(packet.to_bytes())
print('Going to sleep for {0} seconds...'.format(
config.poll_interval))
sleep(config.poll_interval)
print('Disconnecting devices before restarting main loop...')
device.disconnect()
adapter.stop_scan()
except Exception as e:
print('Caught exception of type {0} in main loop: {1}'.format(
sys.exc_info()[0], str(e)))
sleep(5) # bleccchh
def start_system():
global sensor_data
allowed_ids = [UUID("1c7c996c-79b0-47df-905a-93233d6fdc67")]
devices = getDevices(allowed_ids) # dict of uuid: device
# uarts are used to read and write data over bluetooth
uarts = {device.id: UART(device) for device in devices.values()}
packet_len = 20
uart_stream = UARTStream(devices[allowed_ids[0]], uarts[allowed_ids[0]])
# tracker = AccelTracker()
x_pulse_tracker = DrumPulseTracker(-10.0, 0.0, 10, name="x")
y_pulse_tracker = DrumPulseTracker(-10.0, 0.0, 10, name="y")
z_pulse_tracker = DrumPulseTracker(-10.0, 0.0, 10, name="z")
accel_printer = PeriodicPrinter(1.0)
audio_player = audio.Audio()
try:
thread.start_new_thread(userInputHandler, ())
# tracker.start()
x_pulse_tracker.start()
y_pulse_tracker.start()
z_pulse_tracker.start()
c = 0
while not end_program:
sensor_str = uart_stream.readBetween("[", "]")
# print "Received: {}".format(sensor_str)
(t, vect) = parseSensorData(sensor_str)
x, y, z = vect.toArray()
x_pulse_tracker.update(t, x)
y_pulse_tracker.update(t, y)
if z_pulse_tracker.update(t, z):
print "Pulse Detected at time t = {}".format(c)
audio_player.queue_sound("kick", 100)
collectData(x_pulse_tracker.getAcceleration(),
y_pulse_tracker.getAcceleration(),
z_pulse_tracker.getAcceleration())
# sensor_data.append(vect.toArray())
# tracker.updateAccel(t, vect)
# accel_printer.printVal("Displacement = {}".format(tracker.getDisplacement()))
# print "velocity: {}".format(tracker.getVelocity().toArray())
c += 1
#except Exception as e:
# print(e)
# raise e
finally:
for device in devices.values():
device.disconnect()
# plotSensorData(sensor_data)
saveData(sensor_data)
def __setup_thread(self):
# Bluetooth UUIDs
SENSE_SERVICE_UUID = uuid.UUID('00006969-6969-6969-6969-696969696969')
RSSI_CHAR_UUID = uuid.UUID('00000420-0000-1000-8000-00805f9b34fb')
TEMP_CHAR_UUID = uuid.UUID('00000421-0000-1000-8000-00805f9b34fb')
PRESS_CHAR_UUID = uuid.UUID('00000422-0000-1000-8000-00805f9b34fb')
HUM_CHAR_UUID = uuid.UUID('00000423-0000-1000-8000-00805f9b34fb')
GAS_CHAR_UUID = uuid.UUID('00000424-0000-1000-8000-00805f9b34fb')
ALT_CHAR_UUID = uuid.UUID('00000425-0000-1000-8000-00805f9b34fb')
self.ble.clear_cached_data()
adapter = self.ble.get_default_adapter()
adapter.power_on()
self.ble.disconnect_devices()
try:
print('Scanning for devices...')
adapter.start_scan()
self.device = UART.find_device()
if self.device is None:
raise RuntimeError('Failed to find UART device!')
finally:
adapter.stop_scan()
self.device.connect()
# Discover Bluetooth services and characteristics
self.device.discover([SENSE_SERVICE_UUID], [RSSI_CHAR_UUID,
TEMP_CHAR_UUID, PRESS_CHAR_UUID,
HUM_CHAR_UUID, GAS_CHAR_UUID, ALT_CHAR_UUID])
# Find Bluetooth services and characteristics
sensors = self.device.find_service(SENSE_SERVICE_UUID)
self.chars = {
"rssi": sensors.find_characteristic(RSSI_CHAR_UUID),
"temp": sensors.find_characteristic(TEMP_CHAR_UUID),
"pressure": sensors.find_characteristic(PRESS_CHAR_UUID),
"humidity": sensors.find_characteristic(HUM_CHAR_UUID),
"gas": sensors.find_characteristic(GAS_CHAR_UUID),
"alt": sensors.find_characteristic(ALT_CHAR_UUID)
}
# Setup rfOutput.csv
output_file = open("rfOutput.csv", "w")
output_file.write('RSSI (dB),TEMP (*C),PRESSURE (hPa),HUMIDITY (%),GAS (KOhms),ALT (m)\n')
output_file.close()
def connect_to_device(self):
"""Connects to the device.
Returns:
A pair containing the device that we connected to and the UART instance.
"""
self.ble.clear_cached_data()
adapter = self.ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {}'.format(adapter.name))
print('Disconnecting any connected UART devices...')
UART.disconnect_devices()
print('Searching for UART device...')
try:
adapter.start_scan()
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
finally:
adapter.stop_scan()
print('Connecting to device...')
device.connect()
try:
print('Discovering services...')
UART.discover(device)
uart = UART(device)
except:
device.disconnect()
raise
return (device, uart)
def main():
# Clear any cached data because both bluez and CoreBluetooth have issues with
# caching data and it going stale.
ble.clear_cached_data()
# Get the first available BLE network adapter and make sure it's powered on.
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
# Disconnect any currently connected UART devices. Good for cleaning up and
# starting from a fresh state.
print('Disconnecting any connected UART devices...')
UART.disconnect_devices()
# Scan for UART devices.
print('Searching for UART device...')
try:
adapter.start_scan()
# Search for the first UART device found (will time out after 60 seconds
# but you can specify an optional timeout_sec parameter to change it).
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
finally:
# Make sure scanning is stopped before exiting.
adapter.stop_scan()
print('Connecting to device...')
device.connect(
) # Will time out after 60 seconds, specify timeout_sec parameter
# to change the timeout.
# Once connected do everything else in a try/finally to make sure the device
# is disconnected when done.
try:
# Wait for service discovery to complete for the UART service. Will
# time out after 60 seconds (specify timeout_sec parameter to override).
print('Discovering services...')
UART.discover(device)
# Once service discovery is complete create an instance of the service
# and start interacting with it.
uart = UART(device)
# Write a string to the TX characteristic.
s.enter(5, 1, check_db,
(s, repeatChecker, canReactDB, waitUntil, uart))
s.run()
##should never get here
finally:
# Make sure device is disconnected on exit.
device.disconnect()
def main():
ble.clear_cached_data()
UART.disconnect_devices()
# Get the first available BLE network adapter and make sure it's powered on.
adapter = ble.get_default_adapter()
adapter.power_on()
# Find UART device
device = find_device(adapter, deviceName)
if device is None:
raise RuntimeError('Failed to find UART device!')
logging.info('connecting to {0} [{1}]'.format(device.name, device.id))
# Once connected do everything else in a try/finally to make sure the device
# is disconnected when done.
device.connect()
try:
# Wait for service discovery to complete for the UART service. Will
# time out after 60 seconds (specify timeout_sec parameter to override).
UART.discover(device, timeout_sec=5)
uart = UART(device)
# Read temperature data from the sensor
while True:
received = uart.read(timeout_sec=5)
if received is not None:
logging.debug('received {0} bytes: {1}'.format(len(received), received))
t1, t2 = parse_datapoint(received)
if not t1 and not t2:
continue
# Log temperature data to file or stdout
if logFile:
with open(logFile, 'w') as fp:
fp.write('{0},{1}'.format(t1, t2))
else:
print('{0},{1}'.format(t1, t2))
else:
# Timeout waiting for data, None is returned.
break
finally:
# Make sure device is disconnected on exit.
logging.info('disconnected from {0} [{1}]'.format(device.name, device.id))
try:
device.disconnect()
except:
pass
def find_device(adapter, name):
logging.info('searching for UART device {0}'.format(name))
try:
adapter.start_scan()
while True:
devices = set(UART.find_devices())
for device in devices:
logging.debug('found UART device {0}'.format(device.name))
if device.name == name:
return device
# Wait for the device to come up
time.sleep(1)
finally:
adapter.stop_scan()
def main():
ble.clear_cached_data()
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
print('Disconnecting any connected UART devices...')
UART.disconnect_devices()
print('Searching for UART device...')
try:
adapter.start_scan()
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
finally:
adapter.stop_scan()
print('Connecting to device...')
device.connect()
try:
print('Discovering services...')
UART.discover(device)
uart = UART(device)
while(True):
n = randbyte(0, LEDCOUNT)
r = randbyte(0, 256)
g = randbyte(0, 256)
b = randbyte(0, 256)
s = b'n'+n+b'r'+r+b'g'+g+b'b'+b+b'\r'+b'\n'
print(s)
uart.write(s)
sleep(1)
print('Waiting up to 60 seconds to receive data from the device...')
finally:
device.disconnect()
def main():
start_time = time.time()
ble.clear_cached_data()
adapter = ble.get_default_adapter()
adapter.power_on()
adapter.start_scan()
atexit.register(adapter.stop_scan)
known_uarts = {}
while True:
found = set(UART.find_devices())
for device in found:
if device.name not in known_uarts.keys():
known_uarts[device.name] = device.id
time.sleep(1.0)
if len(known_uarts) == 5:
requests.put('localhost:8888/api/',json.dumps(known_uarts)) #Send JSON to SERVER
if round(time.time() - start_time) % 10 == 0:
break
def main():
ble.clear_cached_data()
# get bluetooth adapter and turn it on
adapter = ble.get_default_adapter()
adapter.power_on()
# disconnect old UART devices
UART.disconnect_devices()
try:
adapter.start_scan()
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
finally:
adapter.stop_scan()
device.connect()
print('Connected to device...')
try:
UART.discover(device)
uart = UART(device)
while True:
received = uart.read(timeout_sec=30)
if received is not None:
print('Received: {0}'.format(received))
print(datetime.datetime.strftime(datetime.datetime.now(), '%H:%M:%S'))
stream.add_value(received)
else:
print('Received no data!')
break
finally:
device.disconnect()
def ble_ain():
#global t
# Clear any cached data because both bluez and CoreBluetooth have issues with
# caching data and it going stale.
ble.clear_cached_data()
print 'ble_main()'
# Get the first available BLE network adapter and make sure it's powered on.
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
# Disconnect any currently connected UART devices. Good for cleaning up and
# starting from a fresh state.
print('Disconnecting any connected UART devices...')
UART.disconnect_devices()
# Scan for UART devices.
print('Searching for UART device...')
try:
adapter.start_scan()
# Search for the first UART device found (will time out after 60 seconds
# but you can specify an optional timeout_sec parameter to change it).
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
finally:
# Make sure scanning is stopped before exiting.
adapter.stop_scan()
print('Connecting to device...')
device.connect() # Will time out after 60 seconds, specify timeout_sec parameter to change the timeout.
# Once connected do everything else in a try/finally to make sure the device
# is disconnected when done.
try:
# Wait for service discovery to complete for the UART service. Will
# time out after 60 seconds (specify timeout_sec parameter to override).
print('Discovering services...')
UART.discover(device,timeout_sec=5)
# Once service discovery is complete create an instance of the service
# and start interacting with it.
uart = UART(device)
# Write a string to the TX characteristic.
# uart.write('Hello world!\r\n')
#print("Send request to device...")
#uart.write('r')
# Now wait up to one minute to receive data from the device.
print('Waiting up to 15 seconds to receive data from the device...')
received = uart.read(timeout_sec=15)
if received is not None:
wd='0x'
for i in reversed(received[0:8]):
print('Received: {0}'.format(ord(i)))
c=hex(ord(i))[2:]
if len(c)<2:
wd += '0'+c
else:
wd += c
print(wd)
t=w.decrypt(int(wd,16))
print(hex(t))
print("t-ul meu este")
print(t)
t1=hex(t)[2:]
a=0
b=2
wsend=''
for i in range(int(len(t1)/2)):
wsend += str(int(t1[a:b],16))
wsend+=';'
a+=2
b+=2
print(wsend)
wsSend(wsend)
else:
# Timeout waiting for data, None is returned.
print('Received no data!')
finally:
# Make sure device is disconnected on exit.
device.disconnect()
def main():
# Clear any cached data because both bluez and CoreBluetooth have issues with
# caching data and it going stale.
ble.clear_cached_data()
# Get the first available BLE network adapter and make sure it's powered on.
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
# Disconnect any currently connected UART devices. Good for cleaning up and
# starting from a fresh state.
print('Disconnecting any connected UART devices...')
UART.disconnect_devices()
# Scan for UART devices.
print('Searching for UART device...')
try:
adapter.start_scan()
# Search for the first UART device found (will time out after 60 seconds
# but you can specify an optional timeout_sec parameter to change it).
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
finally:
# Make sure scanning is stopped before exiting.
adapter.stop_scan()
print('Found UART: {0} [{1}]'.format(device.name, device.id))
print('Connecting to device...')
device.connect() # Will time out after 60 seconds, specify timeout_sec parameter
# to change the timeout.
# Once connected do everything else in a try/finally to make sure the device
# is disconnected when done.
try:
# Wait for service discovery to complete for the UART service. Will
# time out after 60 seconds (specify timeout_sec parameter to override).
print('Discovering services...')
UART.discover(device)
# Once service discovery is complete create an instance of the service
# and start interacting with it.
uart = UART(device)
#print("DEVICE FOUND IS 1->"+uart.CHARACTERISTICS)
#print("DEVICE FOUND IS 2->" + uart.ADVERTISED)
#print("DEVICE FOUND IS 3->" + uart.SERVICES)
colors = ['hello','r','g','b','r','g','b','r','g','b','a']
for x in colors:
# Write a string to the TX characteristic.
uart.write('hello')
print("sent--->hello")
#print("Sent 'Hello world!' to the device.")
# Now wait up to one minute to receive data from the device.
print('Waiting up to 60 seconds to receive data from the device...')
received = uart.read(timeout_sec=10)
time.sleep(10)
if received is not None:
# Received data, print it out.
print('Received: {0}'.format(received))
#establish connectivity and get an ACK to continue communication
print("SENT -->"+x)
uart.write(x)
else:
# Timeout waiting for data, None is returned.
print('Received no data!')
finally:
# Make sure device is disconnected on exit.
device.disconnect()
def main():
# Clear any cached data because both bluez and CoreBluetooth have issues with
# caching data and it going stale.
ble.clear_cached_data()
# Get the first available BLE network adapter and make sure it's powered on.
adapter = ble.get_default_adapter()
adapter.power_on()
print('Using adapter: {0}'.format(adapter.name))
# Disconnect any currently connected UART devices. Good for cleaning up and
# starting from a fresh state.
print('Disconnecting any connected UART devices...')
UART.disconnect_devices()
# Scan for UART devices.
print('Searching for UART device...')
try:
adapter.start_scan()
# Search for the first UART device found (will time out after 60 seconds
# but you can specify an optional timeout_sec parameter to change it).
device = UART.find_device()
if device is None:
raise RuntimeError('Failed to find UART device!')
finally:
# Make sure scanning is stopped before exiting.
adapter.stop_scan()
print('Connecting to device...')
device.connect() # Will time out after 60 seconds, specify timeout_sec parameter
# to change the timeout.
# Once connected do everything else in a try/finally to make sure the device
# is disconnected when done.
try:
# Wait for service discovery to complete for the UART service. Will
# time out after 60 seconds (specify timeout_sec parameter to override).
print('Discovering services...')
UART.discover(device)
# Once service discovery is complete create an instance of the service
# and start interacting with it.
uart = UART(device)
# Write a string to the TX characteristic.
uart.write('Hello world!\r\n')
print("Sent 'Hello world!' to the device.")
# Now wait up to one minute to receive data from the device.
print('Waiting up to 60 seconds to receive data from the device...')
received = uart.read(timeout_sec=60)
if received is not None:
print received
hexd = received.decode("hex")
bytearray = array.array('B', hexd)
magnetometerX = struct.unpack( '>H', bytearray[0:2] )
magnetometerY = struct.unpack( '>H', bytearray[2:4] )
magnetometerZ = struct.unpack( '>H', bytearray[4:6] )
accX = struct.unpack( '<H', bytearray[6:8] )
accY = struct.unpack( '<H', bytearray[8:10] )
accZ = struct.unpack( '<H', bytearray[10:12] )
gyroX = struct.unpack( '>H', bytearray[12:14] )
gyroY = struct.unpack( '>H', bytearray[14:16] )
gyroZ = struct.unpack( '>H', bytearray[16:18] )
print "MAG: " + str(magnetometerX[0]) + "," + str(magnetometerY[0]) + "," + str(magnetometerZ[0])
print "ACCEL: " + str(accX[0]) + "," + str(accY[0]) + "," + str(accZ[0])
print "GYRO: " + str(gyroX[0]) + "," + str(gyroY[0]) + "," + str(gyroZ[0])
print "-----------------"
else:
# Timeout waiting for data, None is returned.
print('Received no data!')
finally:
# Make sure device is disconnected on exit.
device.disconnect()
