def get_GPS_array():
com = UART(1,pins=(config.TX, config.RX), baudrate=9600)
my_gps = MicropyGPS()
time.sleep(2)
if com.any():
my_sentence = com.readline()
for x in my_sentence:
my_gps.update(chr(x))
gps_array = convert_latlon(my_gps.latitude[0] + (my_gps.latitude[1] / 60), my_gps.longitude[0] + (my_gps.longitude[1] / 60))
return gps_array
def start_GPS():
com = UART(1,pins=("P11","P12"), baudrate=9600)
my_gps = MicropyGPS()
if config.LOG == 1:
mount_sd()
my_gps.start_logging('/sd/log.txt')
my_gps.write_log('Restarted logging')
while True:
if com.any():
my_sentence = com.readline()
for x in my_sentence:
my_gps.update(chr(x))
print('Latitude: ' + my_gps.latitude_string() + ' Longitude: ' + my_gps.longitude_string() + ' Altitude: ' + str(my_gps.altitude))
print('Lat / Lon: ' + str(my_gps.latitude[0] + (my_gps.latitude[1] / 60)) + ', ' + str(my_gps.longitude[0] + (my_gps.longitude[1] / 60)))
class ESP01S():
def __init__(self, uart_port=0, txPin=16, rxPin=17):
self.uart = UART(0, baudrate=115200, tx=Pin(txPin), rx=Pin(rxPin))
self.echo(False)
def echo(self, enable=False):
if enable:
self.send("ATE1")
else:
self.send("ATE0")
def send(self, cmd):
self.uart.write(cmd + "\r\n")
rxData = ""
while True:
if self.uart.any() > 0:
break
while self.uart.any() > 0:
rxData += str(self.uart.read(1))
rxData = rxData.replace("b'", "")
rxData = rxData.replace("\\r", "")
rxData = rxData.replace("\\n", "\n")
rxData = rxData.replace("'", "")
return rxData
class MHZ14A():
read_packet = [0xFF, 0x01, 0x86, 0x00, 0x00, 0x00, 0x00, 0x00, 0x79]
def __init__(self, uartNum=1, txPin=18, rxPin=19):
"""initializes communication with CO2 sensor"""
self.uart = UART(uartNum, 9600)
self.uart.init(parity=None, stop=1, bits=8, rx=rxPin, tx=txPin)
# wait a minimum amount of time before trying to read the sensor
sleep_ms(250)
def send_command(self, packet):
# flush serial
while self.uart.any() > 0:
self.uart.read(self.uart.any())
# send packet
self.uart.write(bytearray(packet))
def readCO2(self):
"""reads CO2 concentration from MH-Z14a sensors and returns ppm value"""
read_packet = [0xFF, 0x01, 0x86, 0x00, 0x00, 0x00, 0x00, 0x00, 0x79]
try:
self.send_command(read_packet)
start = ticks_ms()
while self.uart.any() < 9:
if ticks_diff(ticks_ms(), start) > 5000:
print("Timeout reading CO2 sensor")
return -4
res = self.uart.read(9)
if res is not None and len(res) == 9:
checksum = 0xff & (~(res[1] + res[2] + res[3] + res[4] +
res[5] + res[6] + res[7]) + 1)
if res[8] == checksum:
res = bytearray(res)
ppm = (res[2] << 8) | res[3]
return ppm
else:
print("CO2 sensor reading checksum failed. Result was: ",
res)
return -1
else:
print("CO2 sensor did not return data")
return -2
except Exception as e:
print("Exception reading sensor:")
print(str(e))
return -3
def zeroPointCalibration(self):
"""Starts a zero point calibration"""
zpc_packet = [0xFF, 0x01, 0x87, 0x00, 0x00, 0x00, 0x00, 0x00, 0x79]
try:
self.send_command(zpc_packet)
except Exception as e:
print("Exception calibrating sensor:")
print(str(e))
return -3
class IR:
def __init__(self, rx, tx):
self.uart = UART(1, baudrate=115200, rx=rx, tx=tx, timeout=10)
self._write_flag = 0
self.ac_state = 0
def uartSend(self, t):
self.uart.write(t)
def write(self, name, str):
f = open(name, "wb")
f.write(str)
f.close()
def read(self, name):
f = open(name, "rb")
data = f.read()
f.close()
return data
def main(self):
time.sleep_ms(100)
if self.uart.any():
a = self.uart.read()
if a != b'\xfe\xfc\xcf':
if self._write_flag:
file_name = "ir_Data/Ac_" + self._write_flag
self.write(file_name, a)
return a
class uart_class(object):
def __init__(self, port, baudrate=115200, timeout=2, timeout_char=1):
self.port = PORT[port]
self.uart = UART(self.port, baudrate, timeout, timeout_char)
@decorator
def write(self, data):
self.uart.write(data)
@decorator
def read(self):
_bytes = self.uart.read(MAX_RECEIVE_SIZE)
return _bytes
#@decorator
def is_received(self, _str):
_bytes = self.uart.read(MAX_RECEIVE_SIZE)
#print(_bytes)
received_str = str(_bytes, "utf-8")
if (received_str == _str):
return True
else:
return False
@decorator
def get_string(self):
_bytes = self.uart.read(MAX_RECEIVE_SIZE)
#print(_bytes)
return str(_bytes, "utf-8")
@decorator
def any(self):
return self.uart.any()
def sendRPi(toSend): #function to transmit data to RPi
uart1 = UART(0, 115200, bits=8, parity=None, stop=1)
uart1.init(baudrate=115200, bits=8, parity=None, stop=1)
toSend = str("{0:0=3d}".format(len(toSend) + 3)
) + toSend #adds in the beginning the length of the buffer
while True:
uart1.write(bytes(toSend, 'utf-8'))
receivedMessage = ''
timeOut = time.time() + 0.02
while time.time(
) < timeOut: #waits for 0.02 seconds for message back from RPi
if (uart1.any()):
receivedMessage = uart1.readall().decode('utf-8')
if 'received' in receivedMessage: #if receives 'received' breaks earlier
break
if 'received' in receivedMessage: #if is received,sends a new buffer
print('\n***received!***')
break
else: #sends the same buffer again
print('\nsend again...')
class WaterLevel:
def __init__(self, port):
self.port = port
self.uart = UART(port, 9600)
self.uart.init(9600,
timeout=10) # 9600, 1byte about 1ms, wait for 10ms
self.buffer = RingBuffer(10)
# return
# False: no change
# True: change, need read value
def Check(self):
count = self.uart.any()
if count < 3:
return False
# At lease 3 bytes in buffer (For example:0mm)
value_change = None
while 1: # maybe too many data in UART RX buffer
data = self.uart.readline()
if data:
number_string = re.search(b'^\d+', data)
if number_string:
number = int(number_string.group(0))
value_change = self.buffer.InsertData(number, True)
else:
break
return value_change
def GetValue(self):
return self.buffer.GetAverage()
def main():
"""
config uart Baud rate as 115200,data bits as 8bit, Do not use parity,
Stop bit as 0bit,Do not use Flow control，
UART(UART.UARTn, buadrate, databits, parity, stopbits, flowctl)
"""
uart = UART(UART.UART2, 115200, 8, 0, 1, 0)
# write string
delay = 100
for i in range(2):
# write string
uart.write("hello world\r\n")
# write string and & integer
uart.write("delay num as {0}ms\r\n".format(delay))
# write float
uart.write("π as {0}\r\n".format(3.14159))
# read something
read_btyes = 6
uart.write("please input {0} bytes:\r\n".format(read_btyes))
while True:
if uart.any() > read_btyes:
break
else:
time.sleep_ms(10)
# !!! Before reading buffer, please make sure there is data in buffer
input_date = uart.read(read_btyes)
uart.write("The data you entered is {0}\r\n".format(input_date))
time.sleep_ms(delay)
def run():
"""Run the program."""
uart = UART(1)
uart.init(config.baudrate,
bits=8,
parity=None,
stop=1,
rx=config.rx,
tx=config.tx)
gps = MicropyGPS()
s = screen.Screen()
kph = None
start = utime.ticks_ms()
while kph is None and utime.ticks_diff(utime.ticks_ms(), start) < 1000:
if uart.any():
try:
stat = gps.update(chr(uart.read(1)[0]))
except:
pass
if stat == 'GNRMC':
print(stat)
kph = gps.speed[2]
if kph is not None:
s.update(kph)
machine.deepsleep(5000)
class Syringe_pump():
def __init__(self, port):
assert port.UART is not None, '! Pump needs port with UART.'
self.uart = UART(port.UART, 9600)
self.uart.init(9600, bits=8, parity=None, stop=1, timeout=100)
self.uart.write('C')
self.uart.write('Z')
def infuse(self, val):
self.uart.write('I,{}\n'.format(val))
def check_for_serial(self):
if self.uart.any():
return self.uart.readline().decode("utf-8").strip('\n')
else:
return None
def reset_volume(self):
self.uart.write('Z')
def retract(self):
self.uart.write('R')
def send_animal_number(self, number):
self.uart.write('A,{}\n'.format(number))
class RFID:
def __init__(self,
rx=15,
tx=2,
freq=1,
new_tag_cmd=None,
tag_removed_cmd=None):
self.uart = UART(1, tx=tx, rx=rx, baudrate=115200)
self.uart.init()
self.uart.write(b'\xAB\xBA\x00\x10\x00\x10')
#self.uart.read()#clear buffer
self.uart.flush()
self.uart.any()
self.new_tag_cmd = new_tag_cmd
self.tag_removed_cmd = tag_removed_cmd
self.current_id = b''
self.waittime = max(.2, 1 / freq)
self.uart.callback(UART.CBTYPE_PATTERN,
self.uart_cb,
pattern=b'\xcd\xdc')
loop = asyncio.get_event_loop()
loop.create_task(self.mainloop())
def uart_cb(self, response):
#print('[RFID] {}'.format(' '.join('{:02x}'.format(x) for x in bytearray(response[2]))))
response = bytearray(response[2])
if response[:2] == b'\x00\x81':
id = response[2:-1]
if id != self.current_id:
log.info('new card "{}"'.format(' '.join('{:02x}'.format(x)
for x in id)))
self.current_id = id
if self.new_tag_cmd is not None:
self.new_tag_cmd(id)
elif self.current_id:
log.info('card "{}" removed'.format(' '.join(
'{:02x}'.format(x) for x in self.current_id)))
if self.tag_removed_cmd is not None:
self.tag_removed_cmd(self.current_id)
self.current_id = b''
async def mainloop(self):
while True:
self.uart.write(b'\xAB\xBA\x00\x10\x00\x10')
await asyncio.sleep(self.waittime - .1)
class UartComm():
"""
The main class for communication between the main input
module and the WiFi module
"""
def __init__(self):
self.handlers = {}
self._uart = UART(0, 115200)
self._uart.init(115200, bits=8, parity=None, stop=1)
def begin(self):
"""
Enables the serial port to receive data, otherwise
repl will not allow data being read
"""
uos.dupterm(None, 1)
def end(self):
"""
Re-enable the serial port to be used by REPL
"""
uos.dupterm(UART(0, 115200), 1)
def add_handler(self, command, callback):
self.handlers[command] = callback
def apply_command(self, display, command, *args):
if command in self.handlers:
self.handlers[command](*args)
def _extract_input_instruction(self, display, data):
"""
Extracts the command if found and applies it
"""
command = data[0]
self.apply_command(display, command, data[1:])
def check_input(self, display):
"""
This method is to be called whenever any serial
data is available, it will try to extract commands
"""
if not self._uart.any():
return False
uartdata = self._uart.read()
#display.lcd.fill(0)
#display.lcd.text(uartdata[3:], 0, 0, 1)
#display.lcd.show()
r = len(uartdata)
while True:
position = uartdata.rfind(INSTRUCTION, 0, r)
if position < 0:
break
self._extract_input_instruction(display, uartdata[position+2:r])
r = position
class mhz19:
def __init__(self, uart_no):
self.uart_no = uart_no
self.start()
self.ppm = 0
self.temp = 0
self.co2status = 0
def start(self):
self.uart = UART(self.uart_no, 9600)
self.uart.init(9600, bits=8, parity=None, stop=1, timeout=10)
def stop(self):
while self.uart.any():
self.uart.read(1)
self.uart.deinit()
def get_data(self):
self.uart.write(b"\xff\x01\x86\x00\x00\x00\x00\x00\x79")
time.sleep(0.1)
s = self.uart.read(9)
try:
z = bytearray(s)
except:
return 0
# Calculate crc
crc = self.crc8(s)
if crc != z[8]:
# we should restart the uart comm here..
self.stop()
time.sleep(1)
self.start()
print(
'CRC error calculated %d bytes= %d:%d:%d:%d:%d:%d:%d:%d crc= %dn'
% (crc, z[0], z[1], z[2], z[3], z[4], z[5], z[6], z[7], z[8]))
return 0
else:
self.ppm = ord(chr(s[2])) * 256 + ord(chr(s[3]))
self.temp = ord(chr(s[4])) - 40
self.co2status = ord(chr(s[5]))
return 1
def crc8(self, a):
crc = 0x00
count = 1
b = bytearray(a)
while count < 8:
crc += b[count]
count = count + 1
# Truncate to 8 bit
crc %= 256
# Invert number with xor
crc = ~crc & 0xFF
crc += 1
return crc
def run(hostname, client_id, mqtt_host, mqtt_port, mqtt_user, mqtt_pass, pin_enable, ssl = False):
print('Disabling REPL on UART')
uos.dupterm(None, 1)
en1 = Pin(pin_enable, Pin.OUT, value=1)
rx = UART(0, 115200, rxbuf = 1024)
def on_msg(topic, msg):
print(topic, msg)
if topic == b"smarty_control":
if msg == b"reset":
machine.reset()
mqtt_client_id = client_id + b"_smarty"
c = MQTTClient(mqtt_client_id, mqtt_host, mqtt_port, mqtt_user, mqtt_pass,
keepalive = 60,
ssl = ssl)
c.lw_topic = b"smarty_control"
c.lw_msg = b"logoff/" + mqtt_client_id + b"/lastwill"
c.set_callback(on_msg)
c.connect()
utime.sleep_ms(1000)
c.publish(b"smarty_control", b"logon/" + mqtt_client_id)
# c.subscribe(b"smarty_control")
poll = uselect.poll()
poll.register(rx, uselect.POLLIN)
print('Requesting data')
en1.value(0)
while True:
# c.check_msg()
evs = poll.poll(10000)
for ev in evs:
if ev[0] == rx:
if ev[1] == uselect.POLLERR:
print('error')
elif ev[1] == uselect.POLLIN:
print('data ready')
data = b""
while rx.any() > 0:
data = data + rx.read()
utime.sleep_ms(5)
c.publish(b"smarty_data", data)
print(str(len(data)) + ' bytes sent')
print('disabling')
en1.value(1)
c.publish(b"smarty_control", b"logoff/" + mqtt_client_id)
c.disconnect()
def do():
killbits = [
"M0 ", "041", "000", "000", "026", "200", "001", "016", "000", "032",
"032", "032", "032", "011", "322", "010", "000", "333", "377", "172",
"017", "127", "303", "010", "000", "X", "J0 "
]
uart = UART(2, tx=17, rx=16, timeout=10)
uart.init(9600)
if uart.any():
uart.read() # flush
print('Loading bitstream')
iceboot.boot('altair.bin')
print('Done')
print(uart)
for oword in killbits:
uart.write(oword)
utime.sleep_ms(100)
while uart.any():
print(uart.readline())
class SEN0219_SERIAL:
# byte mhzCmdReadPPM[9] = {0xFF,0x01,0x86,0x00,0x00,0x00,0x00,0x00,0x79};
# byte mhzResp[9]; // 9 bytes bytes response
# byte mhzCmdCalibrateZero[9] = {0xFF,0x01,0x87,0x00,0x00,0x00,0x00,0x00,0x78};
# byte mhzCmdABCEnable[9] = {0xFF,0x01,0x79,0xA0,0x00,0x00,0x00,0x00,0xE6};
# byte mhzCmdABCDisable[9] = {0xFF,0x01,0x79,0x00,0x00,0x00,0x00,0x00,0x86};
# byte mhzCmdReset[9] = {0xFF,0x01,0x8d,0x00,0x00,0x00,0x00,0x00,0x72};
def __init__(self, TX, RX):
self.uart = UART(1, 9600, bits=8, parity=None, stop=1, pins=(TX,RX))
#self.uart.write(b'\xFF\x01\x8D\x00\x00\x00\x00\x00\x72') #Reset
def deinit(self):
self.uart.deinit()
def SEN_Serial_ABCOn(self):
self.uart.write(b'\xFF\x01\x79\xA0\x00\x00\x00\x00\xE6') #ABC On
self.uart.wait_tx_done(1000)
def SEN_Serial_ABCOff(self):
self.uart.write(b'\xFF\x01\x79\x00\x00\x00\x00\x00\x86') #ABC Off
self.uart.wait_tx_done(1000)
def SEN_Serial_read(self):
self.uart.write(b'\xFF\x01\x86\x00\x00\x00\x00\x00\x79') #get gas command
self.uart.wait_tx_done(1000)
Attempts=5
while(Attempts>0):
data=self._SerialRead()
if(data!=False):
return data
Attempts-=1
utime.sleep(1)
return False
def _SerialRead(self):
print(str(self.uart.any()))
if(self.uart.any()>=9):
data=self.uart.read(9)
return data
else:
return False
def coms_test():
crc_valid = None
blue_wire_oe_n = Pin('P11', mode=Pin.OUT, pull=Pin.PULL_UP)
blue_wire_oe_n.value(1)
uart1 = UART(1, 25000)
uart1.init(25000, bits=8, parity=None, stop=1)
tx_buffer_flushed = None
(data,crc_valid) = ctrl.data_frame(run_crc=True)
print("Sending: {}\r".format(ubinascii.hexlify(data)),end='\n')
start_time = time.ticks_us()
blue_wire_oe_n.value(0)
t_2_heater = time.ticks_diff(time.ticks_us(), start_time)
print("t_2_heater {}us OE low".format(t_2_heater))
start_time = time.ticks_us()
uart1.write(data)
tx_buffer_flushed = uart1.wait_tx_done(25)
t_2_heater = time.ticks_diff(time.ticks_us(), start_time)
print("t_2_heater {}us Tx".format(t_2_heater))
start_time = time.ticks_us()
blue_wire_oe_n.value(1)
t_2_heater = time.ticks_diff(time.ticks_us(), start_time)
print("t_2_heater {}us OE high buf flushed{}".format(t_2_heater,tx_buffer_flushed))
start_time = time.ticks_us()
num_bytes = uart1.any()
while (num_bytes < 24) :
num_bytes = uart1.any()
t_2_heater = time.ticks_diff(time.ticks_us(), start_time)
print("t_2_heater {}us to get heater data".format(t_2_heater))
start_time = time.ticks_us()
data = util.extractValidFrameFromUART(uart1)
t_2_heater = time.ticks_diff(time.ticks_us(), start_time)
print("t_2_heater {}us to extract and load".format(t_2_heater))
print("Halting")
machine.idle()
while True:
pass
def chk_GNSS():
while True:
u = UART(1, 9600)
u.init(9600, bits=8, parity=None, stop=1)
# UBX-NAV-STATUS hex poll command to check if position fix
buf = b'\xB5\x62\x01\x03\x00\x00\x04\x0D'
REGISTER_FORMAT = '>b' # one byte for nav status
u.write(buf)
#sleep(1)
while not u.any():
if u.any():
break
# read 24 bytes
poll = u.read(24)
# offset for nav fix byte = 6 + 5
nav_fix = ustruct.unpack_from(REGISTER_FORMAT, poll, 11)[0]
print('nav fix= ', (nav_fix & 0x01))
# offset for nav status code byte = 6 + 4
nav_stat = ustruct.unpack_from(REGISTER_FORMAT, poll, 10)[0]
print('nav status code= ', nav_stat)
# UBX-NAV-POSLLH hex poll command
buf = b'\xB5\x62\x01\x02\x00\x00\x03\x0A'
# send poll command
u.write(buf)
while not u.any():
if u.any():
break
# read UBX-NAV-POSLLH poll result
poll = u.read(36)
u.deinit() # this closes the UART
#print ('read nav data ',poll)
REGISTER_FORMAT = '<i' # little endian 4 bytes
# offset for longitude status byte = 6 + 4
lon = ustruct.unpack_from(REGISTER_FORMAT, poll, 10)[0]
lat = ustruct.unpack_from(REGISTER_FORMAT, poll, 14)[0]
if (nav_fix & 0x01) != 1:
print('no GNSS signal', (nav_fix / 2))
else:
print('longitude= ', (lon / 1E7))
print('latitude= ', (lat / 1E7))
sleep(2)
class GPS:
def __init__(self, tx, rx):
self.tx = tx
self.rx = rx
self.uart = UART(1, baudrate=9600, tx=self.tx, rx=self.rx)
# parameters
self.latitude = 0
self.longitude = 0
self.speed = 0
self.heading = 0
# Setup commands - turn off automatic messages
self.write("$PUBX,40,GGA,0,0,0,0")
self.write("$PUBX,40,GLL,0,0,0,0")
self.write("$PUBX,40,GSA,0,0,0,0")
self.write("$PUBX,40,GSV,0,0,0,0")
self.write("$PUBX,40,VTG,0,0,0,0")
self.write("$PUBX,40,ZDA,0,0,0,0")
tx_pin = Pin(tx, Pin.OUT)
rx_pin = Pin(rx, Pin.IN)
# If pin is changing, check
self.buffer = bytearray()
#rx_pin.irq(handler=self.update, trigger=Pin.IRQ_RISING)
def write(self, msg):
# Find checksum without $ character
check = self.checksum(msg[1:])
# Reconstruct string with checksum
out = "{}*{}\r\n".format(msg, hex(check)[2:])
self.uart.write(out)
#print(out)
def checksum(self, msg):
# checksum is xor of each byte between $ and *
check = 0
for el in msg:
# xor the hex value of each element found with ord() function
check ^= ord(el)
return check
#def update(self, pin):
def update(self):
# $GPRMC, hhmmss.ss, Status, Latitude, N/S, Longitude, E/W, Spd, Cog,
# date, mv, mvE/W, mode, cs, \r\n
if self.uart.any() >= 2:
reading = bytearray(self.uart.read())
print(reading)
class Serial:
""" simple class to constantly read and write serial data
for test purposes only"""
def __init__(self, baudRate=115200):
self.baudRate = baudRate
print("here")
# the next line creates the uart object and sets uart 1 to be used with pins
# 1 and 3, which are normally dedicated to uart 0 and locked to REPL.
# with this code we bypass that and allow communication via the USB cable
self.uart = UART(1,
tx=1,
rx=3,
baudrate=self.baudRate,
bits=8,
parity=None,
stop=1)
self.uart.init()
def writeData(self, data2Write="m"):
"""write data to port without considering if there is anyone listening on the other side"""
self.uart.write(data2Write)
return
def readData(self):
if self.uart.any() > 0:
self.uart.readline()
def readDataPoll(self, timeout=100): # amount2Read=0):
"""use poll method to see how many characters are available for reading,
read them, and return it
OBS: need to learn what is the UART buffer size and implement controls on the PC side"""
poll = uselect.poll()
poll.register(self.uart, uselect.POLLIN)
# set the duration for waiting
poll.poll(timeout)
# timeout=-1 polls the port indefintely. poll.poll returns a list of tuples that need to be worked on
amount2read = poll.poll()
amount2read = (
amount2read[0][1] + 4
) # +4 reads the trailing "/n/r" at the end of each line
data = self.uart.read(amount2read)
# print(data)
# add if statement to make use of poll
# readData = self.uart.read(amount2Read)
# print(readData)
return data
class GPS_data():
def __init__(self):
self.uart = UART(1, pins=(config.TX, config.RX), baudrate=9600)
self.gps_dev = MicropyGPS()
def get_loc(self):
coords = array.array('B', [0, 0, 0, 0, 0, 0, 0, 0, 0])
timestamp = (0, 0, 0)
valid = False
sentence = ''
# read buffer to last line
while self.uart.any():
sentence = self.uart.readline()
# if timed-out process last line
if len(sentence) > 0:
for x in sentence:
self.gps_dev.update(chr(x))
if config.DEBUG:
print(sentence)
print('Longitude', self.gps_dev.longitude)
print('Latitude', self.gps_dev.latitude)
print('UTC Timestamp:', self.gps_dev.timestamp)
print('Fix Status:', self.gps_dev.fix_stat)
print('Altitude:', self.gps_dev.altitude)
print('Horizontal Dilution of Precision:', self.gps_dev.hdop)
print('Satellites in Use by Receiver:',
self.gps_dev.satellites_in_use)
if self.has_fix():
valid = True
timestamp = self.gps_dev.timestamp
lat = int((self.gps_dev.latitude[0] +
(self.gps_dev.latitude[1] / 60) + 90) * 10000)
lon = int((self.gps_dev.longitude[0] +
(self.gps_dev.longitude[1] / 60) + 180) * 10000)
alt = int((self.gps_dev.altitude) * 10)
lhdop = int((self.gps_dev.hdop) * 10)
# encode location data
coords[0] = lat
coords[1] = (lat >> 8)
coords[2] = (lat >> 16)
coords[3] = lon
coords[4] = (lon >> 8)
coords[5] = (lon >> 16)
coords[6] = alt
coords[7] = (alt >> 8)
coords[8] = lhdop
return coords, timestamp, valid
def has_fix(self):
return (self.gps_dev.fix_stat > 0 and self.gps_dev.latitude[0] > 0)
class CORGI85():
def __init__(self):
try:
fm.register(board_info.WIFI_RX, fm.fpioa.UART2_TX)
fm.register(board_info.WIFI_TX, fm.fpioa.UART2_RX)
self.uart = UART(UART.UART2,
115200,
8,
None,
1,
timeout=1000,
read_buf_len=4096)
print("Init CORGI85")
except:
print("Unable to init UART")
def deinit(self):
self.uart.deinit()
del self.uart
def wifi_check(self):
data = self.uart.read()
self.uart.write("\rWIFI_CHECK,\r")
time.sleep_ms(100)
if self.uart.any() > 0:
data = self.uart.read()
return int(data[0])
else:
return 0
def thingspeak_init(self):
print(">>> thingspeak_init")
self.uart.write("\rThingspeak,init\r")
def thingspeak_account_setup(self, api_key, channel_id):
print(">>> thingspeak_account_setup")
self.uart.write("\rThingspeak,account_setup,")
self.uart.write(str(api_key))
self.uart.write(",")
self.uart.write(str(channel_id))
self.uart.write("\r")
def thingspeak_write_field(self, field, value):
print(">>> thingspeak_write_field, field : ", field, ", value : ",
value)
self.uart.write("\rThingspeak,write_field,")
self.uart.write(str(field))
self.uart.write(",")
self.uart.write(str(value))
self.uart.write("\r")
class Sigfox(object):
def __init__(self):
uos.dupterm(None, 1)
self.uart = UART(0, 9600)
self.uart.init(9600, bits=8, parity=None, stop=1)
def wait_for(self, success, failure, timeout):
"""Wait for a response
Args:
success: success message
failure: failure message
timeout: timeout in seconds
"""
iter_count = timeout / 0.1
success_h = ubinascii.hexlify(success).decode('utf-8')
failure_h = ubinascii.hexlify(failure).decode('utf-8')
message = ""
while (iter_count >= 0 and success_h not in message
and failure_h not in message):
if self.uart.any() > 0:
c = self.uart.read()
hex_str = ubinascii.hexlify(c).decode("utf-8")
message += hex_str
iter_count -= 1
sleep(0.1)
if success_h in message:
return message
elif failure_h in message:
print("Failure ({})".format(message.replace('\r\n', '')))
else:
print("Received timeout ({})".format(message.replace('\r\n', '')))
return ''
def test_connection(self, timeout=3):
print('testing connection')
self.uart.write("AT\r")
if self.wait_for('OK', 'ERROR', timeout):
return 'connection ok'
else:
return ''
def send_message(self, message):
res = ''
while not res:
res = self.test_connection(timeout=1)
print('connection ok, sending message')
self.uart.write("AT$SF={}\r".format(message))
if self.wait_for('OK', 'ERROR', 15):
print('Message send')
def do():
uart = UART(2, tx=17, rx=16, timeout=10)
uart.init(9600)
if uart.any():
uart.read() # flush
print('Loading bitstream')
iceboot.boot('altair.bin')
print('Done')
print(uart)
uart.write('J000000')
utime.sleep_ms(1000)
uart.write('\r\n')
utime.sleep_ms(500)
uart.write('\r\n')
utime.sleep_ms(100)
uart.write('Y\r\n')
utime.sleep_ms(100)
while uart.any():
print(uart.readline())
utime.sleep_ms(50)
uart.write('10 PRINT "HI"\r\n')
utime.sleep_ms(50)
uart.write('20 FOR F=1 TO 10\r\n')
utime.sleep_ms(50)
uart.write('30 PRINT F\r\n')
utime.sleep_ms(50)
uart.write('40 NEXT F\r\n')
utime.sleep_ms(50)
uart.write('RUN\r\n')
utime.sleep_ms(200)
while uart.any():
print(uart.readline())
while True:
while uart.any():
print(uart.readline())
utime.sleep_ms(100)
def config_M8():
u = UART(1, 9600)
u.init(9600, bits=8, parity=None, stop=1)
# UBX-CFG-PRT command to set UART1 output=0 (UBX output only) and 9600 baud
buf1 = b'\xB5\x62\x06\x00\x14\x00\x01\x00\x00\x00\xC0\x08\x00\x00\x80\x25\x00\x00\x07\x00\x01\x00\x00\x00\x00\x00\x90\xA9'
u.write(buf1)
# catch ack
while not u.any():
if u.any():
break
poll = u.read()
# write UBX-CFG-PRT poll command
buf1 = b'\xB5\x62\x06\x00\x01\x00\x01\x08\x22'
u.write(buf1)
# catch poll response
while not u.any():
if u.any():
break
poll = u.read()
u.deinit() # this closes the UART
REGISTER_FORMAT = '<i' # little endian 4 bytes
# offset for baud rate = 6 + 8
baud = ustruct.unpack_from(REGISTER_FORMAT, poll, 14)[0]
print('baud rate= ', baud)
def writeCommand(self, command):
output = command + '\r\n'
uart = UART(1,
baudrate=9600,
pins=(Pin.exp_board.G9, Pin.exp_board.G8))
uart.write(output)
#wait max 3(s) for output from the sensor
waitcounter = 0
while (waitcounter < 5 and not uart.any()):
time.sleep(0.5)
waitcounter += 1
response = uart.readall()
uart.deinit()
print(response)
return (response)
def UARTtransmission():
uart1 = UART(0, 115200, bits=8, parity=None, stop=1)
uart1.init(baudrate=115200, bits=8, parity=None, stop=1)
SLEEP = 0.03
data1 = ''
fileName = ''
send = ''
while True:
if (uart1.any()):
pycom.rgbled(0xFF0000) # set LED to RED
data = uart1.readall().decode(
'utf-8') # recieves data and decodes from utf-8
if data != data1 and str(data[:3]) == str("{0:0=3d}".format(
len(data))):
if data[3:13] == 'filename: ': #new fileName
fileName = data[13:]
fileWrite = open(fileName, 'w').close() #clear ever$
elif data[3:] == 'Finish': #finished message
fileName = ''
pycom.rgbled(0xFFFFFF) # set LED to WHITE
else: # writes inside of the file
data = data[3:]
fileWrite = open(fileName, 'a') #opens to write insi$
fileWrite.write(data) #writes inside the data
fileWrite.close() #close file
data1 = data
print(data1)
uart1.write(
bytes('received', 'utf-8'
)) #sends back a message to notify that was recieved
time.sleep(SLEEP)
elif data == data1:
uart1.write(
bytes('received', 'utf-8'
)) #sends back a message to notify that was recieved
time.sleep(SLEEP)
else:
pycom.rgbled(0xFFFFFF) # set LED to WHITE
time.sleep(SLEEP)
class ArduinoConn():
_STX = 0x02
_ETX = 0x03
@staticmethod
def _startRecvThread(func, args):
print("_startRecvThread")
start_new_thread(func, args)
def __init__(self, id=2, baud=115200):
self._uart = UART(id, baud)
def init(self, txPin=None, rxPin=None):
self._uart.init(tx=txPin, rx=rxPin)
def startRecvThread(self, callback):
print("startRecvThread")
ArduinoConn._startRecvThread(self._recv, (callback, ))
print("startRecvThread end")
def send(self, message):
buf = bytearray(chr(ArduinoConn._STX)) + bytearray(
message.encode()) + bytearray(chr(ArduinoConn._ETX))
self._uart.write(buf)
def _recv(self, callback):
tele = ArduinoTele()
poller = select.poll()
poller.register(self._uart, select.POLLIN)
while True:
events = poller.poll()
print('events =', events)
while self._uart.any():
buf = self._uart.read(1)
print(buf)
if buf[0] == ArduinoConn._STX:
print("-> STX")
tele.clear()
tele.isRecving = True
elif buf[0] == ArduinoConn._ETX:
print("-> ETX")
if tele.isRecving:
print(tele.data)
callback(tele)
tele.clear()
elif tele.isRecving:
tele.data += buf.decode()
def UartRead():
global state
uart = UART(UART.UART1, 115200, 8, 0, 1, 0)
while 1:
# 返回是否有可读取的数据长度
msgLen = uart.any()
# 当有数据时进行读取
if msgLen:
msg = uart.read(msgLen)
# 初始数据是字节类型（bytes）,将字节类型数据进行编码
utf8_msg = msg.decode()
# str
uart_log.info("UartRead msg: {}".format(utf8_msg))
else:
continue
state = 0
uart0_int_count += 1
def uart1_handler(uart_o):
global uart1_irq
global uart1_int_count
if uart1_irq.flags() & UART.RX_ANY:
uart1_int_count += 1
uart0_irq = uart0.irq(trigger=UART.RX_ANY, handler=uart0_handler)
uart1_irq = uart1.irq(trigger=UART.RX_ANY, handler=uart1_handler)
uart0.write(b"123")
# wait for the characters to be received
while not uart1.any():
pass
time.sleep_us(100)
print(uart1.any() == 3)
print(uart1_int_count > 0)
print(uart1_irq.flags() == 0)
print(uart0_irq.flags() == 0)
print(uart1.read() == b"123")
uart1.write(b"12345")
# wait for the characters to be received
while not uart0.any():
pass
time.sleep_us(100)
# set the clock
c = untplib.NTPClient()
rtclock = RTC()
clock_adjust()
# set the regex for the uart answers
re = ure.compile("\r\nOK\r\n")
er = ure.compile("\r\nERROR\r\n")
# config the uart and see if somethings answers
uart = UART(1, baudrate=115200, pins=(TX_PIN, RX_PIN)) # uart #, baudrate, pins tx,rx
uart.write('+++')
uart.write('AT+COPS?\r\n')
time.sleep(1)
while uart.any() != 0:
print(uart.readall())
# get the battery
adc = ADC()
bat = adc.channel(pin=BAT_PIN)
# initialize Blynk
blynk = BlynkLib.Blynk(BLYNK_AUTH, server=BLYNK_SERVER)
# register virtual pin 4 (the button on the blynk that sends the temp sms right away)
blynk.add_virtual_pin(4, write=v4_write_handler)
# register my task
blynk.set_user_task(sendData, 60000)
print(uart0.read(1) == b'1')
print(uart0.read(2) == b'23')
print(uart0.read() == None)
uart0.write(b'123')
buf = bytearray(3)
print(uart1.readinto(buf, 1) == 1)
print(buf)
print(uart1.readinto(buf) == 2)
print(buf)
# try initializing without the id
uart0 = UART(baudrate=1000000, pins=uart_pins[0][0])
uart0.write(b'1234567890')
time.sleep_ms(2) # because of the fifo interrupt levels
print(uart1.any() == 10)
print(uart1.readline() == b'1234567890')
print(uart1.any() == 0)
uart0.write(b'1234567890')
print(uart1.readall() == b'1234567890')
# tx only mode
uart0 = UART(0, 1000000, pins=('GP12', None))
print(uart0.write(b'123456') == 6)
print(uart1.read() == b'123456')
print(uart1.write(b'123') == 3)
print(uart0.read() == None)
# rx only mode
uart0 = UART(0, 1000000, pins=(None, 'GP13'))
