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 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
def uart(epoch):
uart = UART(2, 115200)
uart.init(115200, bits=8, parity=0, stop=1, tx=4, rx=5)
while True:
pkt = uart.readline() # read up to 5 bytes
if (pkt != None):
pkt = str(pkt)
pkt = pkt.upper()
pkt = pkt[2:-4]
pkt = pkt.split(",")
try:
if len(pkt[0]) == 12 and len(pkt[1]) > 6 and len(
pkt[2]) > -3 and int(pkt[2]) <= 0:
if epoch:
flT = time() + 946684800
else:
flT = time_stamp(time.localtime())
m = {
'ts': flT,
'mac': pkt[0],
'data': pkt[1],
'rssi': int(pkt[2])
}
tags.insert(1, m)
if len(tags) > 20:
tags.pop()
else:
# Malformed UART data
pass
except:
pass
def uart(epoch, decode):
uart = UART(2, 115200)
uart.init(115200, bits=8, parity=0, stop=1, tx=4, rx=5)
while True:
pkt = uart.readline()
if (pkt != None):
pkt = str(pkt)
pkt = pkt.upper()
pkt = pkt[2:-4]
pkt = pkt.split(",")
try:
if len(pkt[0]) == 12 and len(pkt[1]) > 6 and len(
pkt[2]) > -3 and int(pkt[2]) <= 0:
if epoch:
flT = time.time() + 946684800
else:
flT = time_stamp(time.localtime())
m = {
'ts': flT,
'mac': pkt[0],
'data': pkt[1],
'rssi': int(pkt[2])
}
if decode:
d = decoder.decode(pkt[1])
m.update(d)
msgJson = ujson.dumps(m)
clientB.publish(topic=TOPIC + "ble" + pkt[0], msg=msgJson)
else:
# Malformed UART data
pass
except:
pass
def main():
global saveTime
com = UART(0, 9600)
com.init(9600)
gpsStr = b''
gpsReading = False
while True:
data = com.readline()
if data and (gpsReading or ('$GPRMC' in data)):
gpsStr += data
if '\n' in data:
gpsReading = False
lat, long, today, now = convertGPS(gpsStr)
displayGPS(lat, long, today, now)
if time.ticks_diff(time.ticks_ms(), saveTime) > interval:
saveGPS(lat, long, today, now)
saveTime = time.ticks_ms()
gpsStr = b''
else:
gpsReading = True
class Syringe_pump():
def __init__(self, port):
assert port.UART is not None, '! Pump needs port with UART.'
self.uart = UART(port.UART, 9600)
self.uart.init(9600, bits=8, parity=None, stop=1, timeout=100)
self.uart.write('C')
self.uart.write('Z')
def infuse(self, val):
self.uart.write('I,{}\n'.format(val))
def check_for_serial(self):
if self.uart.any():
return self.uart.readline().decode("utf-8").strip('\n')
else:
return None
def reset_volume(self):
self.uart.write('Z')
def retract(self):
self.uart.write('R')
def send_animal_number(self, number):
self.uart.write('A,{}\n'.format(number))
class MyTimeGps:
_c = ""
def __init__(self):
try:
self._ser = UART(2, tx=12, rx=34)
self._ser.init(9600, bits=8, parity=None, stop=1)
except:
assert False, "*** error uart"
print("---Time (GPS)----")
def read(self):
while True:
time.sleep(.01)
try:
c = self._ser.readline().decode()
s2 = c.split(',')
if s2[0] == "$GPRMC":
break
except:
# no data
pass
return s2
def last_sentence(self):
return self._c
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():
print("Connecting")
do_connect()
print("Connected")
res = urequests.post(
'http://ec2-18-205-17-12.compute-1.amazonaws.com:3000/dbhandler/data',
data="Hello")
print(res.text)
uart = UART(0, 115200)
x = ""
#Until the ESP runs, the serial input to the ESP will be processed to be sent to the server
while (True):
#Chunks of Serial data in bytes
chunk = uart.readline()
if chunk is not None:
#Convert the binary data to string
chunk = chunk.decode('utf-8')
#Combine chunks of data together
x = x + chunk
#One data entry ends after the newline character
if x.find('\n') >= 0:
try:
x = x.replace('ovf', '0.0')
#Parse string to JSON format
x = ujson.loads(x)
sendData(x)
except ValueError:
print("ValueError: Discarding")
#Reset for the next entry
x = ""
def getCO2():
uart = UART(1, 9600, rx=15, tx=12)
uart.init(9600, bits=8, parity=None, stop=1, timeout=200)
uart.write(b'\xff\x01\x86\x00\x00\x00\x00\x00y')
s = uart.readline(9)
return ((s[2] * 256) + s[3])
def measure_start():
uos.dupterm(None, 1)
uart = UART(0)
uart.init(115200)
step = 0
while step < 100:
print(uart.readline())
step += 1
utime.sleep_ms(200)
def Print_Serial_num():
u = UART(2, baudrate=115200, bits=8, parity=None, stop=1, rx=26, tx=25,timeout=200)
display.fill(1)
display.show()
while True:
if u.readline()=='COM:Give me string'.encode():
sleep_ms(10)
u.write(machine_id[:6]+'\n')
u.write(machine_id[6:]+'\n\r')
u.write(machine_id[:6]+'\n')
u.write(machine_id[6:]+'\n\r')
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)
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 set_date_time():
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))
date = my_gps.date
timestamp = my_gps.timestamp
hour = timestamp[0]
hour = hour + config.TIMEZONE
if config.DAYLIGHT == 1:
hour = hour + 1
rtc = RTC(datetime=(int(date[2])+2000, int(date[1]), int(date[0]), int(timestamp[0]), int(timestamp[1]), int(timestamp[2]), 0, None))
return rtc
class DOUBLE_GPS(object):
GGA_MESSAGE = b"$GPGGA,141623.523,2143.963,S,04111.493,W,1,12,1.0,0.0,M,0.0,M,,*65\n"
RMC_MESSAGE = b"$GPRMC,141623.523,A,2143.963,S,04111.493,W,,,301019,000.0,W*7B\n"
UPDATE_RATE_1S = 'PMTK220,1000'
def __init__(self, TX, RX, uart):
self.uart = UART(uart, baudrate=9600)
self.uart.init(9600, bits=8, tx=TX, rx=RX)
self.flag = False
def make_data_available(self, NMEA_sentence):
self.uart.write(NMEA_sentence)
def received_command(self):
command = self.uart.readline()
if (command != None):
command, received_check_sum = command.split(b'*')
command = command.strip(b'$')
received_check_sum = received_check_sum[0:2]
generated_check_sum = self.generate_checksum(command)
command = command.decode()
if command == self.UPDATE_RATE_1S:
self.continuous_mode()
self.flag = True
return command
else:
return None
def generate_checksum(self, command):
checksum = 0
for char in command:
checksum ^= char
return checksum
def continuous_mode(self):
self.my_timer = Timer(1)
self.my_timer.init(period=1000,
mode=self.my_timer.PERIODIC,
callback=self.my_callback)
def my_callback(self, timer):
self.make_data_available(self.RMC_MESSAGE)
def deinit(self):
self.uart.deinit()
if hasattr(self, 'my_timer'):
self.my_timer.deinit()
def do():
killbits = [
"M0 ", "041", "000", "000", "026", "200", "001", "016", "000", "032",
"032", "032", "032", "011", "322", "010", "000", "333", "377", "172",
"017", "127", "303", "010", "000", "X", "J0 "
]
uart = UART(2, tx=17, rx=16, timeout=10)
uart.init(9600)
if uart.any():
uart.read() # flush
print('Loading bitstream')
iceboot.boot('altair.bin')
print('Done')
print(uart)
for oword in killbits:
uart.write(oword)
utime.sleep_ms(100)
while uart.any():
print(uart.readline())
def main():
com = UART(0, 9600)
com.init(9600)
gpsStr = b''
gpsReading = False
while True:
data = com.readline()
if data and (gpsReading or ('$GPRMC' in data)) :
gpsStr += data
if '\n' in data:
gpsReading = False
lat, long, today, now = convertGPS(gpsStr)
displayGPS(lat, long, today, now)
gpsStr = b''
else:
gpsReading = True
class SerialEthernet():
def __init__(self, uartNumber, callback, bufferSize=60):
self.uart = UART(uartNumber)
self.callback = callback
self._listening = False
self._sendBuffer = bufferSize
self._ip = None
self._port = None
self.send("AT+START")
sleep(5)
def _listen(self):
while True:
if (self.uart.any()):
self.callback(self.uart.readline())
def setIP(self, ip, port):
self._ip = ip
self._port = port
self.send("AT+CONNECT")
self.send(str(ip[0]))
self.send(str(ip[1]))
self.send(str(ip[2]))
self.send(str(ip[3]))
self.send(str(port))
self.send("AT+SEND")
def start(self):
_thread.start_new_thread(self._listen, [])
def send(self, msg):
trials = ceil(len(msg) / self._sendBuffer)
for t in range(trials):
#print("t : ", t)
#print(msg[t*(self._sendBuffer-1):(t+1)*(self._sendBuffer-1)])
self.uart.write(msg[t * (self._sendBuffer - 1):(t + 1) *
(self._sendBuffer - 1)])
sleep(0.2)
self.uart.write("\r")
class Positioning(object): def __init__(self, TX, RX, uart): self.uart = UART(uart, baudrate=9600) self.uart.init(9600,bits=8,tx=TX,rx=RX) self.gps = GPS(self.uart) def send_command(self, command): self.gps.send_command(command) def received_command(self): command = self.uart.readline() if(command != None): return command else: return None def get_latitude(self): self.gps.update() return self.gps.latitude def deinit(self): self.uart.deinit()
lcd.rotation(2)
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
#sensor.set_vflip(1)
#sensor.set_hmirror(1)
sensor.run(1)
sensor.skip_frames(time=2000)
fm.register(35, fm.fpioa.UART1_TX, force=True)
fm.register(34, fm.fpioa.UART1_RX, force=True)
uart = UART(UART.UART1, 115200, 8, 0, 0, timeout=1000, read_buf_len=4096)
while (True):
img = sensor.snapshot()
lcd.display(img)
buf = uart.readline()
if buf and len(buf) == 3:
print(buf)
img_buf = img.compress(quality=50)
sz = img_buf.size()
img_size1 = (sz & 0xFF0000) >> 16
img_size2 = (sz & 0x00FF00) >> 8
img_size3 = (sz & 0x0000FF) >> 0
data_packet = bytearray([img_size1, img_size2, img_size3])
uart.write(data_packet)
uart.write(img_buf)
data_packet = bytearray([0xAA, 0x55, 0xFF])
uart.write(data_packet)
elif x[0] == '$GPRMC':
#decodes lat and lon to degrees and mins
nmea_dict['latitude'] = coordDecode(x[3], x[4])
nmea_dict['longitude'] = coordDecode(x[5], x[6])
# for speed, it can be calculated in MPH, KM/H, m/s Knots
# 1 = MPH | 2 = KM/H | 3 = m/s | any other no. for knots
nmea_dict['speed'] = speedCalc(x[7], 1)
elif x[0] == '$GPZDA':
# gets the date and time from GPS
nmea_dict['date_time'] = '{}/{}/{} {}:{}:{}'.format(x[2], x[3], x[4][-2:],x[1][0:2], x[1][2:4], x[1][4:6])
return nmea_dict
while 1:
# create a list for NMEA sentences
l=[]
# Get NMEA sentence
s = adaGPS.readline().decode('utf-8').strip().split(',')
if s[0] == '$GPGGA':
for x in nmea_list:
l.append(s)
s = adaGPS.readline().decode('utf-8').strip().split(',')
data = nmeaDecode(l)
fix = '{}, {}, {}'.format('Yes' if data['fix'] else 'No', data['fix_type'], data['satelites'])
print('''
Lat : {}\tSpeed : {}
Lon : {}\tAltitude : {}
UTC : {}\tFix : {} Sats
'''.format(data['latitude'],data['speed'], data['longitude'], data['altitude'], data['date_time'], fix))
class loraNode:
"""RAK811 Interface Library - Converts inputs"""
"""given to serial commands for RAK811"""
loraNodeSerialBaud = 115200
serialLib = 0
serial_write = None
serial_read = None
serLib = None
abp = "abp"
otaa = "otaa"
EU868 = "EU868"
US915 = "US915"
KR920 = "KR920"
AU915 = "AU915"
AS923 = "AS923"
IN865 = "IN865"
SpreadFactors = {7: 5, 8: 4, 9: 3, 10: 2, 11: 1, 12: 0}
def __init__(self, region=1):
"""Initialise The Library and connect to the module"""
# Import the serial library for the respective platform
from machine import UART
self.serLib = UART(1, loraNodeSerialBaud) # init with given baudrate
self.serial_write = self.serLib.write
self.serial_read = self.serLib.readline
self.serialLib = 1
self.serLib.readline()
self.serLib.readline()
self.serLib.readline()
self.set_spreadingFactor(7)
self.serLib.readline()
############
# UART Functions
############
def uart_tx(self, command):
"""Takes the command and sends it via UART via the correct library"""
# First add at to the beginning
command = "at+%s\r\n" % command
#print(command)
self.serial_write(str.encode(command))
line = self.serLib.readline()
#print(line)
return line
def uart_rx(self):
line = self.serLib.readline()
#print(line)
return line
"""Returns serial data"""
############
# Set Settings Functions
############
def set_devAddr(self, devAddr):
"""Set Device Address"""
command = "set_config=dev_addr:%s" % devAddr
self.uart_tx(command)
def set_devEUI(self, devEui):
"""Set Device EUI"""
command = "set_config=dev_eui:%s" % devEui
self.uart_tx(command)
def set_appEUI(self, appEui):
"""Set Application EUI"""
command = "set_config=app_eui:%s" % appEui
self.uart_tx(command)
def set_appKey(self, appKey):
"""Set Application Key"""
command = "set_config=app_key:%s" % appKey
self.uart_tx(command)
def set_networkKey(self, nwsk):
"""Set Network Key"""
command = "set_config=nwks_key:%s" % nwsk
self.uart_tx(command)
def set_appSessionKey(self, apsk):
"""Set Application Session Key"""
command = "set_config=apps_key:%s" % apsk
self.uart_tx(command)
def set_loraPower(self, pwr):
"""Set Lora Power Level"""
command = "set_config=pwr_level:%s" % pwr
self.uart_tx(command)
def set_adrMode(self, adr):
"""Set Adaptive Data Rate"""
command = "set_config=adr:%s" % adr
self.uart_tx(command)
def set_spreadingFactor(self, sf):
"""Set Spreading Factor"""
command = "dr=%s" % self.SpreadFactors[sf]
self.uart_tx(command)
def set_region(self, sf):
"""Set LoRaWAN Region"""
command = "band=%s" % sf
self.uart_tx(command)
############
# Get Settings Functions
############
def get_devAddr(self):
"""Get Device Address"""
command = "get_config=dev_addr"
return str(self.uart_tx(command)).split("OK")[1].split("\\")[0]
def get_devEUI(self):
"""Get Device EUI"""
command = "get_config=dev_eui"
return str(self.uart_tx(command)).split("OK")[1].split("\\")[0]
def get_appEUI(self):
"""Get Application EUI"""
command = "get_config=app_eui"
return str(self.uart_tx(command)).split("OK")[1].split("\\")[0]
def get_appKey(self):
"""Get Application Key"""
command = "get_config=app_key"
return str(self.uart_tx(command)).split("OK")[1].split("\\")[0]
def get_networkKey(self):
"""Get Network Key"""
command = "get_config=nwks_key"
return str(self.uart_tx(command)).split("OK")[1].split("\\")[0]
def get_appSessionKey(self):
"""Get Application Session Key"""
command = "get_config=apps_key"
return str(self.uart_tx(command)).split("OK")[1].split("\\")[0]
def get_loraPower(self):
"""Get Lora Power Level"""
command = "get_config=pwr_level"
return str(self.uart_tx(command)).split("OK")[1].split("\\")[0]
def get_adrMode(self):
"""Get Adaptive Data Rate"""
command = "get_config=adr"
return str(self.uart_tx(command)).split("OK")[1].split("\\")[0]
def get_spreadingFactor(self):
"""Get Spreading Factor"""
command = "get_config=dr"
return str(self.uart_tx(command)).split("OK")[1].split("\\")[0]
############
# LoRa Functions
############
def join(self, mode):
"""Join"""
if (mode == self.abp):
command = "join=abp"
self.uart_tx(command)
elif (mode == self.otaa):
command = "join=otaa"
self.uart_tx(command)
# Extra response from otaa join
line = self.serLib.readline()
return True
def send_raw_packet(self, packet, port):
"""Send raw bytes packet"""
def send_string_packet(self, string, port=1, pktType=0):
"""Send a string packet"""
command = "send=%s,%s,%s" % (
pktType, port, binascii.hexlify(string.encode()).decode("utf-8"))
self.uart_tx(command)
# There will be an extra response
line = self.serLib.readline()
return line
def send_int_packet(self, int, port):
"""Send integer packet"""
def recieve_packet(self):
"""Check To See if there is any response"""
def reset_radio(self):
"""Reset the RAK811 Radio Module"""
command = "reset=0"
self.uart_tx(command)
self.uart_rx()
self.uart_rx()
self.uart_rx()
def lora_mode(self, mode):
"""Change between LoRaWAN & LoRaP2P Modes"""
def lora_band(self, band):
"""Set LoRaWAN Region"""
command = "band=" + band
self.uart_tx(command)
############
# GPIO Functions
############
def gpio_setmode(self, pin, mode):
"""Set Pin GPIO Mode"""
def gpio_read(self, pin):
"""Read RAK811 GPIO"""
def gpio_write(self, pin, state):
"""RAK811 GPIO Write Command"""
def gpio_adc(self, pin):
"""Read RAK811 ADC"""
# Untitled - By: shts - 土 12 28 2019
import sensor, image, time
from fpioa_manager import fm
from machine import UART
# setup GPIO
fm.register(35, fm.fpioa.UART2_TX, force=True)
fm.register(34, fm.fpioa.UART2_RX, force=True)
cnt = 0
while (True):
uart_Port = UART(UART.UART2,
115200,
8,
0,
0,
timeout=1000,
read_buf_len=4096)
data_packet = "{} M5StickV : Hello World\n".format(cnt)
uart_Port.write(data_packet)
read_data = uart_Port.readline()
print(read_data)
time.sleep(0.001)
cnt += 1
if(i == 5):
check = False
print('Matrix:')#, matrix)
return True
urt = UART(2, 9600)
urt.init(9600, bits=8, parity=None, stop=1, tx=17, rx=16)
#init buffer
buffer_data = CircularBuffer()
while True:
if (urt.any()):
dados = urt.readline()
print('Dado:', dados)
#_thread.start_new_thread(get_data_from_rfid, (True, dados))
#_thread.start_new_thread(store_data, (True, 0))
t1 = threading.Thread(target=get_data_from_rfid, args=(True, dados))
t1.daemon = True # set thread to daemon ('ok' won't be printed in this case)
t1.start()
t2 = threading.Thread(target=store_data, args=(True, 0))
t2.daemon = True # set thread to daemon ('ok' won't be printed in this case)
t2.start()
#buffer_data.print_queue()
#print('Size:', buffer_data.size())
#if(buffer_data.size() == 6):
# store_data()
#
# Copyright (c) 2006-2019, RT-Thread Development Team
#
# SPDX-License-Identifier: MIT License
#
# Change Logs:
# Date Author Notes
# 2019-06-13 SummerGift first version
#
from machine import UART
uart = UART(1, 9600) # init with given baudrate
uart.init(9600, bits=8, parity=None, stop=1) # init with given parameters
uart.read(10) # read 10 characters, returns a bytes object
uart.read() # read all available characters
uart.readline() # read a line
uart.readinto(buf) # read and store into the given buffer
uart.write('abc') # write the 3 characters
class Modem(object):
def __init__(self,
uart=None,
MODEM_PWKEY_PIN=None,
MODEM_RST_PIN=None,
MODEM_POWER_ON_PIN=None,
MODEM_TX_PIN=None,
MODEM_RX_PIN=None):
# Pins
self.MODEM_PWKEY_PIN = MODEM_PWKEY_PIN
self.MODEM_RST_PIN = MODEM_RST_PIN
self.MODEM_POWER_ON_PIN = MODEM_POWER_ON_PIN
self.MODEM_TX_PIN = MODEM_TX_PIN
self.MODEM_RX_PIN = MODEM_RX_PIN
# Uart
self.uart = uart
self.initialized = False
self.modem_info = None
#----------------------
# Modem initializer
#----------------------
def initialize(self):
logger.debug('Initializing modem...')
if not self.uart:
from machine import UART, Pin
# Pin initialization
MODEM_PWKEY_PIN_OBJ = Pin(
self.MODEM_PWKEY_PIN,
Pin.OUT) if self.MODEM_PWKEY_PIN else None
MODEM_RST_PIN_OBJ = Pin(self.MODEM_RST_PIN,
Pin.OUT) if self.MODEM_RST_PIN else None
MODEM_POWER_ON_PIN_OBJ = Pin(
self.MODEM_POWER_ON_PIN,
Pin.OUT) if self.MODEM_POWER_ON_PIN else None
#MODEM_TX_PIN_OBJ = Pin(self.MODEM_TX_PIN, Pin.OUT) # Not needed as we use MODEM_TX_PIN
#MODEM_RX_PIN_OBJ = Pin(self.MODEM_RX_PIN, Pin.IN) # Not needed as we use MODEM_RX_PIN
# Status setup
if MODEM_PWKEY_PIN_OBJ:
MODEM_PWKEY_PIN_OBJ.value(0)
if MODEM_RST_PIN_OBJ:
MODEM_RST_PIN_OBJ.value(1)
if MODEM_POWER_ON_PIN_OBJ:
MODEM_POWER_ON_PIN_OBJ.value(1)
# Setup UART
self.uart = UART(1,
9600,
timeout=1000,
rx=self.MODEM_TX_PIN,
tx=self.MODEM_RX_PIN)
logger.info('UART initialized')
# Test AT commands
retries = 0
while True:
try:
self.modem_info = self.execute_at_command('modeminfo')
except:
retries += 1
if retries < 3:
logger.info(
'Error in getting modem info, retrying.. (#{})'.format(
retries))
time.sleep(3)
else:
raise
else:
break
logger.info('Ok, modem "{}" is ready and accepting commands'.format(
self.modem_info))
# Set initialized flag and support vars
self.initialized = True
# Check if SSL is supported
#self.ssl_available = self.execute_at_command('checkssl') == '+CIPSSL: (0-1)'
#----------------------
# Execute AT commands
#----------------------
def execute_at_command(self,
command,
data=None,
clean_output=True,
binary_output=False,
delay=False):
# Commands dictionary. Not the best approach ever, but works nicely.
commands = {
'modeminfo': {
'string': 'ATI',
'timeout': 3,
'end': 'OK'
},
'fwrevision': {
'string': 'AT+CGMR',
'timeout': 3,
'end': 'OK'
},
'battery': {
'string': 'AT+CBC',
'timeout': 3,
'end': 'OK'
},
'scan': {
'string': 'AT+COPS=?',
'timeout': 60,
'end': 'OK'
},
'network': {
'string': 'AT+COPS?',
'timeout': 3,
'end': 'OK'
},
'signal': {
'string': 'AT+CSQ',
'timeout': 3,
'end': 'OK'
},
'checkreg': {
'string': 'AT+CREG?',
'timeout': 3,
'end': None
},
'checkreg_2g': {
'string': 'AT+CGREG?',
'timeout': 3,
'end': None
},
'setapn': {
'string': 'AT+SAPBR=3,1,"APN","{}"'.format(data),
'timeout': 3,
'end': 'OK'
},
'setuser': {
'string': 'AT+SAPBR=3,1,"USER","{}"'.format(data),
'timeout': 3,
'end': 'OK'
},
'setpwd': {
'string': 'AT+SAPBR=3,1,"PWD","{}"'.format(data),
'timeout': 3,
'end': 'OK'
},
'initgprs': {
'string': 'AT+SAPBR=3,1,"Contype","GPRS"',
'timeout': 3,
'end': 'OK'
}, # Appeared on hologram net here or below
'opengprs': {
'string': 'AT+SAPBR=1,1',
'timeout': 3,
'end': 'OK'
},
'getbear': {
'string': 'AT+SAPBR=2,1',
'timeout': 3,
'end': 'OK'
},
'inithttp': {
'string': 'AT+HTTPINIT',
'timeout': 3,
'end': 'OK'
},
'sethttp': {
'string': 'AT+HTTPPARA="CID",1',
'timeout': 3,
'end': 'OK'
},
'checkssl': {
'string': 'AT+CIPSSL=?',
'timeout': 3,
'end': 'OK'
},
'enablessl': {
'string': 'AT+HTTPSSL=1',
'timeout': 3,
'end': 'OK'
},
'disablessl': {
'string': 'AT+HTTPSSL=0',
'timeout': 3,
'end': 'OK'
},
'initurl': {
'string': 'AT+HTTPPARA="URL","{}"'.format(data),
'timeout': 3,
'end': 'OK'
},
'doget': {
'string': 'AT+HTTPACTION=0',
'timeout': 100,
'end': '+HTTPACTION'
},
'setcontent': {
'string': 'AT+HTTPPARA="CONTENT","{}"'.format(data),
'timeout': 3,
'end': 'OK'
},
'postlen': {
'string': 'AT+HTTPDATA={},5000'.format(data),
'timeout': 3,
'end': 'DOWNLOAD'
}, # "data" is data_lenght in this context, while 5000 is the timeout
'dumpdata': {
'string': data,
'timeout': 1,
'end': 'OK'
},
'dopost': {
'string': 'AT+HTTPACTION=1',
'timeout': 10,
'end': '+HTTPACTION'
},
'getdata': {
'string': 'AT+HTTPREAD',
'timeout': 3,
'end': 'OK'
},
'closehttp': {
'string': 'AT+HTTPTERM',
'timeout': 3,
'end': 'OK'
},
'closebear': {
'string': 'AT+SAPBR=0,1',
'timeout': 3,
'end': 'OK'
}
}
# References:
# https://github.com/olablt/micropython-sim800/blob/4d181f0c5d678143801d191fdd8a60996211ef03/app_sim.py
# https://arduino.stackexchange.com/questions/23878/what-is-the-proper-way-to-send-data-through-http-using-sim908
# https://stackoverflow.com/questions/35781962/post-api-rest-with-at-commands-sim800
# https://arduino.stackexchange.com/questions/34901/http-post-request-in-json-format-using-sim900-module (full post example)
# Sanity checks
if command not in commands:
raise Exception('Unknown command "{}"'.format(command))
# Support vars
command_string = commands[command]['string']
excpected_end = commands[command]['end']
timeout = commands[command]['timeout']
processed_lines = 0
# Execute the AT command
command_string_for_at = "{}\r\n".format(command_string)
logger.debug('Writing AT command "{}"'.format(
command_string_for_at.encode('utf-8')))
#while self.uart.any():
# self.uart.read(self.uart.any())
self.uart.write(command_string_for_at)
# Support vars
pre_end = True
output = b'' if binary_output else ''
empty_reads = 0
while True:
line = self.uart.readline()
if not line:
time.sleep(1)
empty_reads += 1
if empty_reads > timeout:
raise Exception(
'Timeout for command "{}" (timeout={})'.format(
command, timeout))
#logger.warning('Timeout for command "{}" (timeout={})'.format(command, timeout))
#break
else:
logger.debug('Read "{}"'.format(
line if len(line) < 1000 else '--- LONG LINE ---c'))
# Convert line to string
line_str = ''
try:
line_str = line.decode('utf-8')
except UnicodeError as exc:
if not binary_output:
raise exc
# Do we have an error?
if line_str == 'ERROR\r\n':
raise GenericATError('Got generic AT error')
# If we had a pre-end, do we have the expected end?
if line_str == '{}\r\n'.format(excpected_end):
logger.debug('Detected exact end')
break
if pre_end and line_str.startswith('{}'.format(excpected_end)):
logger.debug(
'Detected startwith end (and adding this line to the output too)'
)
output += line_str
break
# Do we have a pre-end?
if line_str == '\r\n':
pre_end = True
logger.debug('Detected pre-end')
else:
pre_end = False
# Keep track of processed lines and stop if exceeded
processed_lines += 1
# Save this line unless in particular conditions
if command == 'getdata' and line_str.startswith('+HTTPREAD:'):
pass
else:
output += line if binary_output else line_str
# Remove the command string from the output
output = output.replace(bytes(command_string, 'utf-8') + b'\r\r\n', b'') if binary_output else \
output.replace(command_string+'\r\r\n', '')
# ..and remove the last \r\n added by the AT protocol
if output.endswith(b'\r\n' if binary_output else '\r\n'):
output = output[:-2]
# Also, clean output if needed
if clean_output:
output = output.replace('\r', '')
output = output.replace('\n\n', '')
if output.startswith('\n'):
output = output[1:]
if output.endswith('\n'):
output = output[:-1]
# Return
if delay:
logger.debug("delay after at command")
time.sleep(5)
return output
#----------------------
# Function commands
#----------------------
def get_info(self):
output = self.execute_at_command('modeminfo')
return output
def battery_status(self):
output = self.execute_at_command('battery')
return output
def scan_networks(self):
networks = []
output = self.execute_at_command('scan')
pieces = output.split('(', 1)[1].split(')')
for piece in pieces:
piece = piece.replace(',(', '')
subpieces = piece.split(',')
if len(subpieces) != 4:
continue
networks.append({
'name': json.loads(subpieces[1]),
'shortname': json.loads(subpieces[2]),
'id': json.loads(subpieces[3])
})
return networks
def get_current_network(self):
output = self.execute_at_command('network')
network = output.split(',')[-1]
if network.startswith('"'):
network = network[1:]
if network.endswith('"'):
network = network[:-1]
# If after filtering we did not filter anything: there was no network
if network.startswith('+COPS'):
return None
return network
def get_signal_strength(self):
# See more at https://m2msupport.net/m2msupport/atcsq-signal-quality/
output = self.execute_at_command('signal')
signal = int(output.split(':')[1].split(',')[0])
signal_ratio = float(signal) / float(
30) # 30 is the maximum value (2 is the minimum)
return signal_ratio
def get_ip_addr(self):
output = self.execute_at_command('getbear')
output = output.split(
'+'
)[-1] # Remove potential leftovers in the buffer before the "+SAPBR:" response
pieces = output.split(',')
if len(pieces) != 3:
logger.info(
'Cannot parse "{}" to get an IP address'.format(output))
return None
ip_addr = pieces[2].replace('"', '')
if len(ip_addr.split('.')) != 4:
raise Exception(
'Cannot parse "{}" to get an IP address'.format(output))
if ip_addr == '0.0.0.0':
return None
return ip_addr
def connect(self, apn, user='', pwd=''):
if not self.initialized:
raise Exception('Modem is not initialized, cannot connect')
# Are we already connected?
if self.get_ip_addr():
logger.debug('Modem is already connected, not reconnecting.')
return
# Closing bearer if left opened from a previous connect gone wrong:
logger.debug(
'Trying to close the bearer in case it was left open somehow..')
try:
self.execute_at_command('closebear')
except Exception:
pass
# First, init gprs
logger.debug('Connect step #1 (initgprs)')
self.execute_at_command('initgprs')
# Second, set the APN
logger.debug('Connect step #2 (setapn)')
self.execute_at_command('setapn', apn, delay=True)
self.execute_at_command('setuser', user, delay=True)
self.execute_at_command('setpwd', pwd, delay=True)
# Then, open the GPRS connection.
logger.debug('Connect step #3 (opengprs)')
self.execute_at_command('opengprs', delay=True)
# Ok, now wait until we get a valid IP address
retries = 0
max_retries = 5
while True:
retries += 1
ip_addr = self.get_ip_addr()
if not ip_addr:
retries += 1
if retries > max_retries:
raise Exception(
'Cannot connect modem as could not get a valid IP address'
)
logger.debug('No valid IP address yet, retrying... (#')
time.sleep(1)
else:
break
def disconnect(self):
# Close bearer
try:
self.execute_at_command('closebear')
except GenericATError:
pass
# Check that we are actually disconnected
ip_addr = self.get_ip_addr()
if ip_addr:
raise Exception(
'Error, we should be disconnected but we still have an IP address ({})'
.format(ip_addr))
def http_request(self,
url,
mode='GET',
data=None,
content_type='application/json',
binary_output=False):
# Protocol check.
assert url.startswith(
'http'
), 'Unable to handle communication protocol for URL "{}"'.format(url)
# Are we connected?
if not self.get_ip_addr():
raise Exception('Error, modem is not connected')
# Close the http context if left open somehow
logger.debug('Close the http context if left open somehow...')
try:
self.execute_at_command('closehttp')
except Exception:
pass
# First, init and set http
logger.debug('Http request step #1.1 (inithttp)')
self.execute_at_command('inithttp')
logger.debug('Http request step #1.2 (sethttp)')
self.execute_at_command('sethttp')
# Do we have to enable ssl as well?
# if self.ssl_available:
# if url.startswith('https://'):
# logger.debug('Http request step #1.3 (enablessl)')
# self.execute_at_command('enablessl')
# elif url.startswith('http://'):
# logger.debug('Http request step #1.3 (disablessl)')
# self.execute_at_command('disablessl')
# else:
# if url.startswith('https://'):
# raise NotImplementedError("SSL is only supported by firmware revisions >= R14.00")
# Second, init and execute the request
logger.debug('Http request step #2.1 (initurl)')
self.execute_at_command('initurl', data=url)
if mode == 'GET':
logger.debug('Http request step #2.2 (doget)')
output = self.execute_at_command('doget')
response_status_code = output.split(',')[1]
logger.debug(
'Response status code: "{}"'.format(response_status_code))
elif mode == 'POST':
logger.debug('Http request step #2.2 (setcontent)')
self.execute_at_command('setcontent', content_type)
logger.debug('Http request step #2.3 (postlen)')
self.execute_at_command('postlen', len(data))
logger.debug('Http request step #2.4 (dumpdata)')
self.execute_at_command('dumpdata', data)
logger.debug('Http request step #2.5 (dopost)')
output = self.execute_at_command('dopost')
response_status_code = output.split(',')[1]
logger.debug(
'Response status code: "{}"'.format(response_status_code))
else:
raise Exception('Unknown mode "{}'.format(mode))
# Third, get data
logger.debug('Http request step #4 (getdata)')
response_content = self.execute_at_command('getdata',
clean_output=False,
binary_output=binary_output)
# Then, close the http context
logger.debug('Http request step #4 (closehttp)')
self.execute_at_command('closehttp')
return Response(status_code=response_status_code,
content=response_content)
#objeto SD
sd = sdcard.SDCard(spi, Pin(2,Pin.OUT))
oled.text('SD...OK', 0, 20)
oled.show()
# contador auxiliar para controlar numero de ciclos
cont = 1
while True:
#lectura y escritura de SD
# Ensure right baudrate
#se monta el sistema de archivos en la sd
os.mount(sd, '/fc')
print('Filesystem check')
print(os.listdir('/fc'))
aux = gps.readline()
gps_data = str(aux)#, "utf-8")
filename = '/fc/gps_data.txt'
oled.text('Escribiendo SD', 0, 30)
oled.show()
with open(filename,'w') as f:
n = f.write(gps_data)
print(n, 'bytes written')
with open(filename,'r') as f:
result1 = f.read()
print(len(result1), 'bytes read')
aux = mpu.read_sensors_scaled()
aux = aux[0] + aux[1] + aux[2]
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'))
print(uart0.write(b'123456') == 6)
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind(('', 80))
s.listen(5)
# Updates from OpenMV send
curr_time = ''
# uart init
uart = UART(2, 115200)
uart.init(115200, bits=8, parity=None, stop=1)
while True:
conn, addr = s.accept()
time.sleep(0.1)
# Update based on uart read
read = uart.readline()
if read == None:
pass
# At least do a type check for URL error
else:
curr_time = read.decode("ascii")
curr_time = curr_time.rstrip()
print('Got a connection from %s' % str(addr))
request = conn.recv(1024)
request = str(request)
print('Content = %s' % request)
music_on = request.find('/?music=on')
if music_on == 6:
print('Music Redirecting!')
# Send the redirect request to youtube
conn.send('HTTP/1.1 302 Found\n')