--- /dev/null
+# ir_tx_test.py Test for nonblocking NEC/SONY/RC-5/RC-6 mode 0 IR blaster.
+
+# Released under the MIT License (MIT). See LICENSE.
+
+# Copyright (c) 2020 Peter Hinch
+
+# Implements a 2-button remote control on a Pyboard with auto repeat.
+from sys import platform
+ESP32 = platform == 'esp32' or platform == 'esp32_LoBo'
+if ESP32:
+ from machine import Pin
+else:
+ from pyb import Pin, LED
+import uasyncio as asyncio
+from aswitch import Switch, Delay_ms
+# Import all implemented classes
+from ir_tx.nec import NEC
+from ir_tx.sony import SONY_12, SONY_15, SONY_20
+from ir_tx.philips import RC5, RC6_M0
+
+loop = asyncio.get_event_loop()
+
+class Rbutton:
+ toggle = 1 # toggle is ignored in NEC mode
+ def __init__(self, irb, pin, addr, data, rep_code=False):
+ self.irb = irb
+ self.sw = Switch(pin)
+ self.addr = addr
+ self.data = data
+ self.rep_code = rep_code
+ self.sw.close_func(self.cfunc)
+ self.sw.open_func(self.ofunc)
+ self.tim = Delay_ms(self.repeat)
+
+ def cfunc(self): # Button push: send data
+ self.irb.transmit(self.addr, self.data, Rbutton.toggle)
+ # Auto repeat. The Sony protocol specifies 45ms but this is tight.
+ # In 20 bit mode a data burst can be upto 39ms long.
+ self.tim.trigger(108)
+
+ def ofunc(self): # Button release: cancel repeat timer
+ self.tim.stop()
+ Rbutton.toggle ^= 1 # Toggle control
+
+ async def repeat(self):
+ await asyncio.sleep(0) # Let timer stop before retriggering
+ if not self.sw(): # Button is still pressed: retrigger
+ self.tim.trigger(108)
+ if self.rep_code:
+ self.irb.repeat() # NEC special case: send REPEAT code
+ else:
+ self.irb.transmit(self.addr, self.data, Rbutton.toggle)
+
+async def main(proto):
+ # Test uses a 38KHz carrier. Some Philips systems use 36KHz.
+ # If button is held down normal behaviour is to retransmit
+ # but most NEC models send a REPEAT code
+ rep_code = proto == 0 # Rbutton constructor requires False for RC-X. NEC protocol only.
+ pin = Pin(23, Pin.OUT) if ESP32 else Pin('X1')
+ classes = (NEC, SONY_12, SONY_15, SONY_20, RC5, RC6_M0)
+ irb = classes[proto](pin, 38000) # My decoder chip is 38KHz
+
+ b = [] # Rbutton instances
+ px3 = Pin(18, Pin.IN, Pin.PULL_UP) if ESP32 else Pin('X3', Pin.IN, Pin.PULL_UP)
+ px4 = Pin(19, Pin.IN, Pin.PULL_UP) if ESP32 else Pin('X4', Pin.IN, Pin.PULL_UP)
+ b.append(Rbutton(irb, px3, 0x1, 0x7, rep_code))
+ b.append(Rbutton(irb, px4, 0x10, 0xb, rep_code))
+ if ESP32:
+ while True:
+ print('Running')
+ await asyncio.sleep(5)
+ else:
+ led = LED(1)
+ while True:
+ await asyncio.sleep_ms(500) # Obligatory flashing LED.
+ led.toggle()
+
+s = '''Test for IR transmitter. Run:
+from ir_tx_test import test
+test() for NEC protocol
+test(1) for Sony SIRC 12 bit
+test(2) for Sony SIRC 15 bit
+test(3) for Sony SIRC 20 bit'''
+spb = '''
+test(5) for Philips RC-5 protocol
+test(6) for Philips RC-6 mode 0.
+
+IR LED on pin X1
+Ground pin X3 to send addr 1 data 7
+Ground pin X4 to send addr 0x10 data 0x0b.'''
+sesp = '''
+
+IR LED on pin 23
+Ground pin 18 to send addr 1 data 7
+Ground pin 19 to send addr 0x10 data 0x0b.'''
+if ESP32:
+ s = ''.join((s, sesp))
+else:
+ s = ''.join((s, spb))
+print(s)
+
+
+def test(proto=0):
+ loop.run_until_complete(main(proto))