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 ir_rx 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(errors[data])  # Application would ignore errors
  35
  36
  37 s = '''Test for IR receiver. Run:
  38 from ir_rx_test import test
  39 test() for NEC protocol,
  40 test(1) for Sony SIRC 12 bit,
  41 test(2) for Sony SIRC 15 bit,
  42 test(3) for Sony SIRC 20 bit,
  43 test(5) for Philips RC-5 protocol,
  44 test(6) for RC6 mode 0.
  45
  46 Background processing means REPL prompt reappears.
  47 Hit ctrl-D to stop (soft reset).'''
  48
  49 print(s)
  50
  51 def test(proto=0):
  52     if proto == 0:
  53         ir = NEC_IR(p, cb)  # Extended mode
  54     elif proto < 4:
  55         bits = (12, 15, 20)[proto - 1]
  56         ir = SONY_IR(p, cb, bits)
  57         ir.verbose = True
  58     elif proto == 5:
  59         ir = RC5_IR(p, cb)
  60     elif proto == 6:
  61         ir = RC6_M0(p, cb)
  62         ir.verbose = True
  63     # A real application would do something here...
  64     #while True:
  65         #time.sleep(5)
  66         #print('running')