+# ir_tx.mcetest Test for nonblocking MCE 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'
+if ESP32:
+ from machine import Pin
+else:
+ from pyb import Pin, LED
+
+from micropython import const
+import uasyncio as asyncio
+from aswitch import Switch, Delay_ms
+from ir_tx.mce import MCE
+
+loop = asyncio.get_event_loop()
+_FIRST = const(0)
+_REP = const(1)
+_END = const(2)
+_REP_DELAY = const(60)
+
+class Rbutton:
+ 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)
+ self.stop = False
+
+ def cfunc(self): # Button push: send data and set up for repeats
+ print('start')
+ self.irb.transmit(self.addr, self.data, _FIRST)
+ self.tim.trigger(_REP_DELAY)
+
+ def ofunc(self): # Button release: cancel repeat timer
+ self.stop = True
+
+ async def repeat(self):
+ await asyncio.sleep(0) # Let timer stop before retriggering
+ if self.stop: # Button has been released: send last message
+ self.stop = False
+ self.tim.stop() # Not strictly necessary
+ self.irb.transmit(self.addr, self.data, _END)
+ print('stop')
+ else:
+ print('rep')
+ self.tim.trigger(_REP_DELAY)
+ self.irb.transmit(self.addr, self.data, _REP)
+
+async def main():
+ if ESP32: # Pins for IR LED gate
+ pin = (Pin(23, Pin.OUT, value = 0), Pin(21, Pin.OUT, value = 0))
+ else:
+ pin = Pin('X1')
+ irb = MCE(pin, verbose=True)
+
+ 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))
+ b.append(Rbutton(irb, px4, 0xe, 0xb))
+ 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()
+
+# Greeting strings. Common:
+s = '''Test for IR transmitter. Run:
+from ir_tx.mcetest import test
+test()
+'''
+# Pyboard:
+spb = '''
+IR LED on pin X1
+Ground pin X3 to send addr 1 data 7
+Ground pin X4 to send addr 0xe data 0x0b.'''
+# ESP32
+sesp = '''
+IR LED gate on pins 23, 21
+Ground pin 18 to send addr 1 data 7
+Ground pin 19 to send addr 0xe data 0x0b.'''
+
+print(''.join((s, sesp)) if ESP32 else ''.join((s, spb)))
+
+def test():
+ loop.run_until_complete(main())