ir_rx_test.py

   1 # ir_rx_test.py Test program for IR remote control decoder arem.py
   2 # Supports Pyboard and ESP8266
   3
   4 # Author: Peter Hinch
   5 # Copyright Peter Hinch 2020 Released under the MIT license
   6
   7 # Run this to characterise a remote.
   8
   9 from sys import platform
  10 import time
  11 from machine import Pin, freq
  12 from arem import *
  13
  14 ESP32 = platform == 'esp32' or platform == 'esp32_LoBo'
  15
  16 if platform == 'pyboard':
  17     p = Pin('X3', Pin.IN)
  18 elif platform == 'esp8266':
  19     freq(160000000)
  20     p = Pin(13, Pin.IN)
  21 elif ESP32:
  22     p = Pin(23, Pin.IN)
  23
  24 errors = {BADSTART : 'Invalid start pulse', BADBLOCK : 'Error: bad block',
  25           BADREP : 'Error: repeat', OVERRUN : 'Error: overrun',
  26           BADDATA : 'Error: invalid data', BADADDR : 'Error: invalid address'}
  27
  28 def cb(data, addr, ctrl):
  29     if data == REPEAT:  # NEC protocol sends repeat codes.
  30         print('Repeat code.')
  31     elif data >= 0:
  32         print('Data {:03x} Addr {:03x} Ctrl {:01x}'.format(data, addr, ctrl))
  33     else:
  34         print('{} Address: {}'.format(errors[data], hex(addr)))
  35
  36
  37 s = '''Test for IR receiver. Run:
  38 ir_tx_test.test() for NEC protocol,
  39 ir_tx_test.test(5) for Philips RC-5 protocol,
  40 ir_tx_test.test(6) for RC6 mode 0.
  41
  42 Background processing means REPL prompt reappears.
  43 Hit ctrl-D to stop (soft reset).'''
  44
  45 print(s)
  46
  47 def test(proto=0):
  48     if proto == 0:
  49         ir = NEC_IR(p, cb, True, 0)  # Extended mode, dummy ctrl arg for callback
  50     elif proto == 5:
  51         ir = RC5_IR(p, cb)
  52     elif proto == 6:
  53         ir = RC6_M0(p, cb)
  54     # A real application would do something here...
  55     #while True:
  56         #time.sleep(5)
  57         #print('running')