tools/btaddon/hc06_console_AT.py

   1 #!/usr/bin/env python3
   2
   3 import sys
   4 import time
   5 try:
   6     import serial
   7 except ModuleNotFoundError:
   8     print("Please install pyserial module first.")
   9     sys.exit(1)
  10
  11 if len(sys.argv) < 2:
  12     print('Usage: %s <baudrate>' % sys.argv[0])
  13     sys.exit(1)
  14 baudrate = int(sys.argv[1])
  15 ser = serial.Serial(
  16     port='/dev/ttyUSB0',
  17     baudrate=baudrate,
  18     parity=serial.PARITY_NONE,
  19     stopbits=serial.STOPBITS_ONE,
  20     bytesize=serial.EIGHTBITS
  21 )
  22
  23 ser.isOpen()
  24 ser.write(b'AT')
  25 out = b''
  26 time.sleep(1)
  27 while ser.inWaiting() > 0:
  28     out += ser.read(1)
  29 if out != b'OK':
  30     ser.close()
  31     print("HC-06 dongle not found. Abort.")
  32     exit(1)
  33 print('Enter your commands below.\r\nInsert "exit" to leave the application.')
  34
  35 while 1 :
  36     # get keyboard input
  37     inp = input(">> ")
  38     inp = inp.encode('utf8')
  39     if inp == 'exit':
  40         ser.close()
  41         exit()
  42     else:
  43         ser.write(inp)
  44         out = b''
  45         wait = 1
  46         ti = time.perf_counter()
  47         while True:
  48             time.sleep(0.05)
  49             if (ser.in_waiting > 0):
  50                 # When receiving data, reset timer and shorten timeout
  51                 ti = time.perf_counter()
  52                 wait = 0.05
  53                 out += ser.read(1)
  54                 continue
  55             # We stop either after 1s if no data or 50ms after last data received
  56             if time.perf_counter() - ti > wait:
  57                 break
  58         if out != b'':
  59             print("<< " + out.decode('utf8'))