NEC IR driver and demos now run on ESP32.

Author: peterhinch

nec_ir/aremote.py

@@ -15,6 +15,8 @@
 else:
     from machine import Pin
 
+ESP32 = platform == 'esp32' or platform == 'esp32_LoBo'
+
 # Save RAM
 # from micropython import alloc_emergency_exception_buf
 # alloc_emergency_exception_buf(100)
@@ -48,6 +50,8 @@ def __init__(self, pin, callback, extended, *args):  # Optional args for callbac
         self._times = array('i',  (0 for _ in range(_EDGECOUNT + 1)))  # +1 for overrun
         if platform == 'pyboard':
             ExtInt(pin, ExtInt.IRQ_RISING_FALLING, Pin.PULL_NONE, self._cb_pin)
+        elif ESP32:
+            pin.irq(handler = self._cb_pin, trigger = (Pin.IRQ_FALLING | Pin.IRQ_RISING))
         else:
             pin.irq(handler = self._cb_pin, trigger = (Pin.IRQ_FALLING | Pin.IRQ_RISING), hard = True)
         self._edge = 0

nec_ir/art.py

@@ -8,9 +8,11 @@
 
 from sys import platform
 import uasyncio as asyncio
+ESP32 = platform == 'esp32' or platform == 'esp32_LoBo'
+
 if platform == 'pyboard':
     from pyb import Pin
-elif platform == 'esp8266':
+elif platform == 'esp8266' or ESP32:
     from machine import Pin, freq
 else:
     print('Unsupported platform', platform)
@@ -36,6 +38,8 @@ def test():
     elif platform == 'esp8266':
         freq(160000000)
         p = Pin(13, Pin.IN)
+    elif ESP32:
+        p = Pin(23, Pin.IN)
     ir = NEC_IR(p, cb, True)  # Assume r/c uses extended addressing
     loop = asyncio.get_event_loop()
     loop.run_forever()

nec_ir/art1.py

@@ -10,9 +10,10 @@
 
 from sys import platform
 import uasyncio as asyncio
+ESP32 = platform == 'esp32' or platform == 'esp32_LoBo'
 if platform == 'pyboard':
     from pyb import Pin, LED
-elif platform == 'esp8266':
+elif platform == 'esp8266' or ESP32:
     from machine import Pin, freq
 else:
     print('Unsupported platform', platform)
@@ -48,6 +49,10 @@ def test():
         p = Pin(13, Pin.IN)
         led = Pin(2, Pin.OUT)
         led(1)
+    elif ESP32:
+        p = Pin(23, Pin.IN)
+        led = Pin(21, Pin.OUT)  # LED with 220Ω series resistor between 3.3V and pin 21
+        led(1)
     ir = NEC_IR(p, cb, True, led)  # Assume extended address mode r/c
     loop = asyncio.get_event_loop()
     loop.run_forever()