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new file: micropython_ir

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new file:   olt_lib/*
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Tomas Krejci 2024-05-16 12:30:44 +02:00
parent d725e709a2
commit 2d6fe96072
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micropython_ir Submodule

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Subproject commit b6697bc2127840b100037da3853bd3d3dd7751b2

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olt_lib/rx/__init__.py Normal file
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# ir_rx __init__.py Decoder for IR remote control using synchronous code
# IR_RX abstract base class for IR receivers.
# Author: Peter Hinch
# Copyright Peter Hinch 2020-2024 Released under the MIT license
# Thanks are due to @Pax-IT for diagnosing a problem with ESP32C3.
from machine import Timer, Pin
from array import array
from utime import ticks_us
# from micropython import alloc_emergency_exception_buf
# alloc_emergency_exception_buf(100)
# On 1st edge start a block timer. While the timer is running, record the time
# of each edge. When the timer times out decode the data. Duration must exceed
# the worst case block transmission time, but be less than the interval between
# a block start and a repeat code start (~108ms depending on protocol)
class IR_RX:
Timer_id = -1 # Software timer but enable override
# Result/error codes
# Repeat button code
REPEAT = -1
# Error codes
BADSTART = -2
BADBLOCK = -3
BADREP = -4
OVERRUN = -5
BADDATA = -6
BADADDR = -7
def __init__(self, pin, nedges, tblock, callback, *args): # Optional args for callback
self._pin = pin
self._nedges = nedges
self._tblock = tblock
self.callback = callback
self.args = args
self._errf = lambda _: None
self.verbose = False
self._times = array("i", (0 for _ in range(nedges + 1))) # +1 for overrun
pin.irq(handler=self._cb_pin, trigger=(Pin.IRQ_FALLING | Pin.IRQ_RISING))
self.edge = 0
self.tim = Timer(self.Timer_id) # Defaul is sofware timer
self.cb = self.decode
# Pin interrupt. Save time of each edge for later decode.
def _cb_pin(self, line):
t = ticks_us()
# On overrun ignore pulses until software timer times out
if self.edge <= self._nedges: # Allow 1 extra pulse to record overrun
if not self.edge: # First edge received
self.tim.init(period=self._tblock, mode=Timer.ONE_SHOT, callback=self.cb)
self._times[self.edge] = t
self.edge += 1
def do_callback(self, cmd, addr, ext, thresh=0):
self.edge = 0
if cmd >= thresh:
self.callback(cmd, addr, ext, *self.args)
else:
self._errf(cmd)
def error_function(self, func):
self._errf = func
def close(self):
self._pin.irq(handler=None)
self.tim.deinit()

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olt_lib/rx/acquire.py Normal file
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# acquire.py Acquire a pulse train from an IR remote
# Supports NEC protocol.
# For a remote using NEC see https://www.adafruit.com/products/389
# Author: Peter Hinch
# Copyright Peter Hinch 2020 Released under the MIT license
from machine import Pin, freq
from sys import platform
from utime import sleep_ms, ticks_us, ticks_diff
from ir_rx import IR_RX
class IR_GET(IR_RX):
def __init__(self, pin, nedges=100, twait=100, display=True):
self.display = display
super().__init__(pin, nedges, twait, lambda *_ : None)
self.data = None
def decode(self, _):
def near(v, target):
return target * 0.8 < v < target * 1.2
lb = self.edge - 1 # Possible length of burst
if lb < 3:
return # Noise
burst = []
for x in range(lb):
dt = ticks_diff(self._times[x + 1], self._times[x])
if x > 0 and dt > 10000: # Reached gap between repeats
break
burst.append(dt)
lb = len(burst) # Actual length
# Duration of pulse train 24892 for RC-5 22205 for RC-6
duration = ticks_diff(self._times[lb - 1], self._times[0])
if self.display:
for x, e in enumerate(burst):
print('{:03d} {:5d}'.format(x, e))
print()
# Attempt to determine protocol
ok = False # Protocol not yet found
if near(burst[0], 9000) and lb == 67:
print('NEC')
ok = True
if not ok and near(burst[0], 2400) and near(burst[1], 600): # Maybe Sony
try:
nbits = {25:12, 31:15, 41:20}[lb]
except KeyError:
pass
else:
ok = True
print('Sony {}bit'.format(nbits))
if not ok and near(burst[0], 889): # Maybe RC-5
if near(duration, 24892) and near(max(burst), 1778):
print('Philps RC-5')
ok = True
if not ok and near(burst[0], 2666) and near(burst[1], 889): # RC-6?
if near(duration, 22205) and near(burst[1], 889) and near(burst[2], 444):
print('Philips RC-6 mode 0')
ok = True
if not ok and near(burst[0], 2000) and near(burst[1], 1000):
if near(duration, 19000):
print('Microsoft MCE edition protocol.')
# Constant duration, variable burst length, presumably bi-phase
print('Protocol start {} {} Burst length {} duration {}'.format(burst[0], burst[1], lb, duration))
ok = True
if not ok and near(burst[0], 4500) and near(burst[1], 4500) and lb == 67: # Samsung
print('Samsung')
ok = True
if not ok and near(burst[0], 3500) and near(burst[1], 1680): # Panasonic?
print('Unsupported protocol. Panasonic?')
ok = True
if not ok:
print('Unknown protocol start {} {} Burst length {} duration {}'.format(burst[0], burst[1], lb, duration))
print()
self.data = burst
# Set up for new data burst. Run null callback
self.do_callback(0, 0, 0)
def acquire(self):
while self.data is None:
sleep_ms(5)
self.close()
return self.data
def test():
# Define pin according to platform
if platform == 'pyboard':
pin = Pin('X3', Pin.IN)
elif platform == 'esp8266':
freq(160000000)
pin = Pin(13, Pin.IN)
elif platform == 'esp32' or platform == 'esp32_LoBo':
pin = Pin(23, Pin.IN)
elif platform == 'rp2':
pin = Pin(16, Pin.IN)
irg = IR_GET(pin)
print('Waiting for IR data...')
return irg.acquire()

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# print_error.py Error print for IR receiver
# Author: Peter Hinch
# Copyright Peter Hinch 2020 Released under the MIT license
from ir_rx import IR_RX
_errors = {IR_RX.BADSTART : 'Invalid start pulse',
IR_RX.BADBLOCK : 'Error: bad block',
IR_RX.BADREP : 'Error: repeat',
IR_RX.OVERRUN : 'Error: overrun',
IR_RX.BADDATA : 'Error: invalid data',
IR_RX.BADADDR : 'Error: invalid address'}
def print_error(data):
if data in _errors:
print(_errors[data])
else:
print('Unknown error code:', data)

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olt_lib/rx/sony.py Normal file
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# sony.py Decoder for IR remote control using synchronous code
# Sony SIRC protocol.
# Author: Peter Hinch
# Copyright Peter Hinch 2020 Released under the MIT license
from utime import ticks_us, ticks_diff
from ir_rx import IR_RX
class SONY_ABC(IR_RX): # Abstract base class
def __init__(self, pin, bits, callback, *args):
# 20 bit block has 42 edges and lasts <= 39ms nominal. Add 4ms to time
# for tolerances except in 20 bit case where timing is tight with a
# repeat period of 45ms.
t = int(3 + bits * 1.8) + (1 if bits == 20 else 4)
super().__init__(pin, 2 + bits * 2, t, callback, *args)
self._addr = 0
self._bits = 20
def decode(self, _):
try:
nedges = self.edge # No. of edges detected
self.verbose and print('nedges', nedges)
if nedges > 42:
raise RuntimeError(self.OVERRUN)
bits = (nedges - 2) // 2
if nedges not in (26, 32, 42) or bits > self._bits:
raise RuntimeError(self.BADBLOCK)
self.verbose and print('SIRC {}bit'.format(bits))
width = ticks_diff(self._times[1], self._times[0])
if not 1800 < width < 3000: # 2.4ms leading mark for all valid data
raise RuntimeError(self.BADSTART)
width = ticks_diff(self._times[2], self._times[1])
if not 350 < width < 1000: # 600μs space
raise RuntimeError(self.BADSTART)
val = 0 # Data received, LSB 1st
x = 2
bit = 1
while x <= nedges - 2:
if ticks_diff(self._times[x + 1], self._times[x]) > 900:
val |= bit
bit <<= 1
x += 2
cmd = val & 0x7f # 7 bit command
val >>= 7
if nedges < 42:
addr = val & 0xff # 5 or 8 bit addr
val = 0
else:
addr = val & 0x1f # 5 bit addr
val >>= 5 # 8 bit extended
except RuntimeError as e:
cmd = e.args[0]
addr = 0
val = 0
self.do_callback(cmd, addr, val)
class SONY_12(SONY_ABC):
def __init__(self, pin, callback, *args):
super().__init__(pin, 12, callback, *args)
class SONY_15(SONY_ABC):
def __init__(self, pin, callback, *args):
super().__init__(pin, 15, callback, *args)
class SONY_20(SONY_ABC):
def __init__(self, pin, callback, *args):
super().__init__(pin, 20, callback, *args)

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# test.py Test program for IR remote control decoder
# Supports Pyboard, ESP32 and ESP8266
# Author: Peter Hinch
# Copyright Peter Hinch 2020-2022 Released under the MIT license
# Run this to characterise a remote.
from sys import platform
import time
import gc
from machine import Pin, freq
from ir_rx.print_error import print_error # Optional print of error codes
# Import all implemented classes
from ir_rx.nec import NEC_8, NEC_16, SAMSUNG
from ir_rx.sony import SONY_12, SONY_15, SONY_20
from ir_rx.philips import RC5_IR, RC6_M0
from ir_rx.mce import MCE
# Define pin according to platform
if platform == "pyboard":
p = Pin("X3", Pin.IN)
elif platform == "esp8266":
freq(160000000)
p = Pin(13, Pin.IN)
elif platform == "esp32" or platform == "esp32_LoBo":
p = Pin(23, Pin.IN)
elif platform == "rp2":
p = Pin(16, Pin.IN)
# User callback
def cb(data, addr, ctrl):
if data < 0: # NEC protocol sends repeat codes.
print("Repeat code.")
else:
print(f"Data 0x{data:02x} Addr 0x{addr:04x} Ctrl 0x{ctrl:02x}")
def test(proto=0):
classes = (NEC_8, NEC_16, SONY_12, SONY_15, SONY_20, RC5_IR, RC6_M0, MCE, SAMSUNG)
ir = classes[proto](p, cb) # Instantiate receiver
ir.error_function(print_error) # Show debug information
# ir.verbose = True
# A real application would do something here...
try:
while True:
print("running")
time.sleep(5)
gc.collect()
except KeyboardInterrupt:
ir.close()
# **** DISPLAY GREETING ****
s = """Test for IR receiver. Run:
from ir_rx.test import test
test() for NEC 8 bit protocol,
test(1) for NEC 16 bit,
test(2) for Sony SIRC 12 bit,
test(3) for Sony SIRC 15 bit,
test(4) for Sony SIRC 20 bit,
test(5) for Philips RC-5 protocol,
test(6) for RC6 mode 0.
test(7) for Microsoft Vista MCE.
test(8) for Samsung.
Hit ctrl-c to stop, then ctrl-d to soft reset."""
print(s)

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# __init__.py Nonblocking IR blaster
# Runs on Pyboard D or Pyboard 1.x (not Pyboard Lite), ESP32 and RP2
# Released under the MIT License (MIT). See LICENSE.
# Copyright (c) 2020-2021 Peter Hinch
from sys import platform
ESP32 = platform == 'esp32' # Loboris not supported owing to RMT
RP2 = platform == 'rp2'
if ESP32:
from machine import Pin, PWM
from esp32 import RMT
elif RP2:
from .rp2_rmt import RP2_RMT
else:
from pyb import Pin, Timer # Pyboard does not support machine.PWM
from micropython import const
from array import array
from time import ticks_us, ticks_diff, sleep_ms
# import micropython
# micropython.alloc_emergency_exception_buf(100)
# Shared by NEC
STOP = const(0) # End of data
# IR abstract base class. Array holds periods in μs between toggling 36/38KHz
# carrier on or off. Physical transmission occurs in an ISR context controlled
# by timer 2 and timer 5. See TRANSMITTER.md for details of operation.
class IR:
_active_high = True # Hardware turns IRLED on if pin goes high.
_space = 0 # Duty ratio that causes IRLED to be off
timeit = False # Print timing info
@classmethod
def active_low(cls):
if ESP32:
raise ValueError('Cannot set active low on ESP32')
cls._active_high = False
cls._space = 100
def __init__(self, pin, cfreq, asize, duty, verbose):
if ESP32:
self._rmt = RMT(0, pin=pin, clock_div=80, tx_carrier = (cfreq, duty, 1))
# 1μs resolution
elif RP2: # PIO-based RMT-like device
self._rmt = RP2_RMT(pin_pulse=None, carrier=(pin, cfreq, duty)) # 1μs resolution
asize += 1 # Allow for possible extra space pulse
else: # Pyboard
if not IR._active_high:
duty = 100 - duty
tim = Timer(2, freq=cfreq) # Timer 2/pin produces 36/38/40KHz carrier
self._ch = tim.channel(1, Timer.PWM, pin=pin)
self._ch.pulse_width_percent(self._space) # Turn off IR LED
# Pyboard: 0 <= pulse_width_percent <= 100
self._duty = duty
self._tim = Timer(5) # Timer 5 controls carrier on/off times
self._tcb = self._cb # Pre-allocate
self._arr = array('H', 0 for _ in range(asize)) # on/off times (μs)
self._mva = memoryview(self._arr)
# Subclass interface
self.verbose = verbose
self.carrier = False # Notional carrier state while encoding biphase
self.aptr = 0 # Index into array
self._busy = False
def _cb(self, t): # T5 callback, generate a carrier mark or space
self._busy = True
t.deinit()
p = self.aptr
v = self._arr[p]
if v == STOP:
self._ch.pulse_width_percent(self._space) # Turn off IR LED.
self._busy = False
return
self._ch.pulse_width_percent(self._space if p & 1 else self._duty)
self._tim.init(prescaler=84, period=v, callback=self._tcb)
self.aptr += 1
def busy(self):
if ESP32:
return not self._rmt.wait_done()
if RP2:
return self._rmt.busy()
return self._busy
# Public interface
# Before populating array, zero pointer, set notional carrier state (off).
def transmit(self, addr, data, toggle=0, validate=False): # NEC: toggle is unused
while self.busy():
pass
t = ticks_us()
if validate:
if addr > self.valid[0] or addr < 0:
raise ValueError('Address out of range', addr)
if data > self.valid[1] or data < 0:
raise ValueError('Data out of range', data)
if toggle > self.valid[2] or toggle < 0:
raise ValueError('Toggle out of range', toggle)
self.aptr = 0 # Inital conditions for tx: index into array
self.carrier = False
self.tx(addr, data, toggle) # Subclass populates ._arr
self.trigger() # Initiate transmission
if self.timeit:
dt = ticks_diff(ticks_us(), t)
print('Time = {}μs'.format(dt))
sleep_ms(1) # Ensure ._busy is set prior to return
# Subclass interface
def trigger(self): # Used by NEC to initiate a repeat frame
if ESP32:
self._rmt.write_pulses(tuple(self._mva[0 : self.aptr]))
elif RP2:
self.append(STOP)
self._rmt.send(self._arr)
else:
self.append(STOP)
self.aptr = 0 # Reset pointer
self._cb(self._tim) # Initiate physical transmission.
def append(self, *times): # Append one or more time peiods to ._arr
for t in times:
self._arr[self.aptr] = t
self.aptr += 1
self.carrier = not self.carrier # Keep track of carrier state
self.verbose and print('append', t, 'carrier', self.carrier)
def add(self, t): # Increase last time value (for biphase)
assert t > 0
self.verbose and print('add', t)
# .carrier unaffected
self._arr[self.aptr - 1] += t
# Given an iterable (e.g. list or tuple) of times, emit it as an IR stream.
class Player(IR):
def __init__(self, pin, freq=38000, verbose=False, asize=68): # NEC specifies 38KHz
super().__init__(pin, freq, asize, 33, verbose) # Measured duty ratio 33%
def play(self, lst):
for x, t in enumerate(lst):
self._arr[x] = t
self.aptr = x + 1
self.trigger()

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# rp2_rmt.py A RMT-like class for the RP2.
# Released under the MIT License (MIT). See LICENSE.
# Copyright (c) 2021-2024 Peter Hinch
# There are two asm_pio programs, pulsetrain and irqtrain. Only the second is used.
# Both operate on a FIFO containing times in μs. The first toggles a pin when a
# time elapses and also generates an interrupt. The ISR feeds the FIFO. This was
# retained in case it finds application as a general RMT replacement. It is not
# invoked by the IR constructor and is inaccessible by the IR subclasses.
# The irqtrain script only generates the interrupt when the period elapses. The ISR
# switches the duty ratio of a PWM running at the carrier frequency. It also feeds
# the FIFO. See RP2_RMT.md in the repository root.
from machine import Pin, PWM
import rp2
# See above: this function is unused by the IR class.
@rp2.asm_pio(set_init=rp2.PIO.OUT_LOW, autopull=True, pull_thresh=32)
def pulsetrain():
wrap_target()
out(x, 32) # No of 1MHz ticks. Block if FIFO MT at end.
irq(rel(0))
set(pins, 1) # Set pin high
label("loop")
jmp(x_dec, "loop")
irq(rel(0))
set(pins, 0) # Set pin low
out(y, 32) # Low time.
label("loop_lo")
jmp(y_dec, "loop_lo")
wrap()
@rp2.asm_pio(autopull=True, pull_thresh=32)
def irqtrain():
wrap_target()
out(x, 32) # No of 1MHz ticks. Block if FIFO MT at end.
irq(rel(0))
label("loop")
jmp(x_dec, "loop")
wrap()
class DummyPWM:
def duty_u16(self, _):
pass
class RP2_RMT:
def __init__(self, pin_pulse=None, carrier=None, sm_no=0, sm_freq=1_000_000):
if carrier is None:
self.pwm = DummyPWM()
self.duty = (0, 0)
else:
pin_car, freq, duty = carrier
self.pwm = PWM(pin_car) # Set up PWM with carrier off.
self.pwm.freq(freq)
self.pwm.duty_u16(0)
self.duty = (int(0xFFFF * duty // 100), 0)
if pin_pulse is None:
self.sm = rp2.StateMachine(sm_no, irqtrain, freq=sm_freq)
else:
self.sm = rp2.StateMachine(sm_no, pulsetrain, freq=sm_freq, set_base=pin_pulse)
self.apt = 0 # Array index
self.arr = None # Array
self.ict = None # Current IRQ count
self.icm = 0 # End IRQ count
self.reps = 0 # 0 == forever n == no. of reps
rp2.PIO(0).irq(handler=self._cb, trigger=1 << (sm_no + 8), hard=True)
# IRQ callback. Because of FIFO IRQ's keep arriving after STOP.
def _cb(self, pio):
if self.ict is not None: # Occasionally a spurious call occurs in testing
self.pwm.duty_u16(self.duty[self.ict & 1])
self.ict += 1
if d := self.arr[self.apt]: # If data available feed FIFO
self.sm.put(d)
self.apt += 1
else:
if r := self.reps != 1: # All done if reps == 1
if r: # 0 == run forever
self.reps -= 1
self.sm.put(self.arr[0])
self.apt = 1 # Set pointer and count to state
self.ict = 1 # after 1st IRQ
# Arg is an array of times in μs terminated by 0.
def send(self, ar, reps=1, check=True):
self.sm.active(0)
self.reps = reps
ar[-1] = 0 # Ensure at least one STOP
for x, d in enumerate(ar): # Find 1st STOP
if d == 0:
break
if check:
# Pulse train must end with a space otherwise we leave carrier on.
# So, if it ends with a mark, append a space. Note __init__.py
# ensures that there is room in array.
if x & 1:
ar[x] = 1 # space. Duration doesn't matter.
x += 1
ar[x] = 0 # STOP
self.icm = x # index of 1st STOP
mv = memoryview(ar)
n = min(x, 4) # Fill FIFO if there are enough data points.
self.sm.put(mv[0:n])
self.arr = ar # Initial conditions for ISR
self.apt = n # Point to next data value
self.ict = 0 # IRQ count
self.sm.active(1)
def busy(self):
if self.ict is None:
return False # Just instantiated
return self.ict < self.icm
def cancel(self):
self.reps = 1

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# sony.py Encoder for IR remote control using synchronous code
# Sony SIRC protocol.
# Author: Peter Hinch
# Copyright Peter Hinch 2020 Released under the MIT license
from micropython import const
from ir_tx import IR
class SONY_ABC(IR):
def __init__(self, pin, bits, freq, verbose):
super().__init__(pin, freq, 3 + bits * 2, 30, verbose)
if bits not in (12, 15, 20, 24):
raise ValueError('bits must be 12, 15, 20 or 24.')
self.bits = bits
def tx(self, addr, data, ext):
self.append(2400, 600)
bits = self.bits
v = data & 0x7f
if bits == 12:
v |= (addr & 0x1f) << 7
elif bits == 15:
v |= (addr & 0xff) << 7
else:
v |= (addr & 0x1f) << 7
v |= (ext & 0xff) << 12
for _ in range(bits):
self.append(1200 if v & 1 else 600, 600)
v >>= 1
# Sony LT specifies 56KHz
class SONY_12(SONY_ABC):
valid = (0x1f, 0x7f, 0) # Max addr, data, toggle
def __init__(self, pin, freq=56000, verbose=False):
super().__init__(pin, 12, freq, verbose)
class SONY_15(SONY_ABC):
valid = (0xff, 0x7f, 0) # Max addr, data, toggle
def __init__(self, pin, freq=56000, verbose=False):
super().__init__(pin, 15, freq, verbose)
class SONY_20(SONY_ABC):
valid = (0x1f, 0x7f, 0xff) # Max addr, data, toggle
def __init__(self, pin, freq=56000, verbose=False):
super().__init__(pin, 20, freq, verbose)
class LT_24(SONY_ABC):
valid = (0x1f, 0x7f, 0xff) # Max addr, data, toggle
def __init__(self, pin, freq=56000, verbose=False):
super().__init__(pin, 24, freq, verbose)

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# ir_tx.test 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'
RP2 = platform == 'rp2'
PYBOARD = platform == 'pyboard'
if ESP32 or RP2:
from machine import Pin
else:
from pyb import Pin, LED
import uasyncio as asyncio
from primitives.switch import Switch
from primitives.delay_ms import Delay_ms
# Import all implemented classes
from ir_tx.sony import SONY_12, SONY_15, SONY_20, LT_24
loop = asyncio.get_event_loop()
# If button is held down normal behaviour is to retransmit
# but most NEC models send a REPEAT code
class Rbutton:
toggle = 1 # toggle is ignored in NEC mode
def __init__(self, irb, pin, addr, data, proto):
self.irb = irb
self.sw = Switch(pin)
self.addr = addr
self.data = data
self.proto = proto
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
tog = 0 if self.proto < 3 else Rbutton.toggle # NEC, sony 12, 15: toggle==0
self.irb.transmit(self.addr, self.data, tog, True) # Test validation
# 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.proto == 0:
self.irb.repeat() # NEC special case: send REPEAT code
else:
tog = 0 if self.proto < 3 else Rbutton.toggle # NEC, sony 12, 15: toggle==0
self.irb.transmit(self.addr, self.data, tog, True) # Test validation
async def main(proto):
# Test uses a 56KHz carrier.
if ESP32: # Pins for IR LED gate
pin = Pin(23, Pin.OUT, value = 0)
elif RP2:
pin = Pin(17, Pin.OUT, value = 0)
else:
pin = Pin('X1')
classes = (SONY_12, SONY_15, SONY_20, LT_24)
irb = classes[proto](pin, 56000) # My decoder chip is 56KHz
# Uncomment the following to print transmit timing
irb.timeit = True
b = [] # Rbutton instances
px3 = Pin('X3', Pin.IN, Pin.PULL_UP) if PYBOARD else Pin(18, Pin.IN, Pin.PULL_UP)
px4 = Pin('X4', Pin.IN, Pin.PULL_UP) if PYBOARD else Pin(19, Pin.IN, Pin.PULL_UP)
b.append(Rbutton(irb, px3, 0x1, 0x7, proto))
b.append(Rbutton(irb, px4, 0x10, 0xb, proto))
if ESP32:
while True:
print('Running')
await asyncio.sleep(5)
elif RP2:
led = Pin(25, Pin.OUT)
while True:
await asyncio.sleep_ms(500) # Obligatory flashing LED.
led(not led())
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.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
test(4) for Philips RC-5 protocol
test(5) for Philips RC-6 mode 0.
'''
# Pyboard:
spb = '''
IR LED on pin X1
Ground pin X3 to send addr 1 data 7
Ground pin X4 to send addr 0x10 data 0x0b.'''
# ESP32
sesp = '''
IR LED gate on pin 23
Ground pin 18 to send addr 1 data 7
Ground pin 19 to send addr 0x10 data 0x0b.'''
# RP2
srp2 = '''
IR LED gate on pin 17
Ground pin 18 to send addr 1 data 7
Ground pin 19 to send addr 0x10 data 0x0b.'''
if ESP32:
print(''.join((s, sesp)))
elif RP2:
print(''.join((s, srp2)))
else:
print(''.join((s, spb)))
def test(proto=0):
loop.run_until_complete(main(proto))