IRRemote

The IRRemote class manages the reception of infrared signals emitted by Eliobot's remote control.

Initialization

import board
import pulseio
import adafruit_irremote
from elio import IRRemote

ir_pin = pulseio.PulseIn(board.IO9, maxlen=120, idle_state=True)
ir_receiver_hw = adafruit_irremote.GenericRemote()
ir = IRRemote(ir_pin)

Signals available

The class exposes a class dictionary signals with all the buttons on the remote:

Clé	Bouton
signal_0	0
signal_1	1
signal_2	2
signal_3	3
signal_4	4
signal_5	5
signal_6	6
signal_7	7
signal_8	8
signal_9	9
signal_st	*
signal_ht	#
signal_up	Flèche haut
signal_down	Flèche bas
signal_left	Flèche gauche
signal_right	Flèche droite
signal_ok	OK

Access to the dictionary:

print(IRRemote.signals["signal_ok"])
# (0, 255, 56, 199)

Methods

decode_signal()

Decodes the received infrared signal and returns the code as a tuple, or None if no valid signal.

code = ir.decode_signal()
if code:
    print("Signal reçu :", code)

Complete example — remote control to control motors

import board
import pwmio
import analogio
import pulseio
import adafruit_irremote
from elio import Motors, IRRemote

# Moteurs
AIN1 = pwmio.PWMOut(board.IO36)
AIN2 = pwmio.PWMOut(board.IO38)
BIN1 = pwmio.PWMOut(board.IO35)
BIN2 = pwmio.PWMOut(board.IO37)
vBatt_pin = analogio.AnalogIn(board.BATTERY)
motors = Motors(AIN1, AIN2, BIN1, BIN2, vBatt_pin)

# Télécommande IR
ir_pin = pulseio.PulseIn(board.IO9, maxlen=120, idle_state=True)
ir = IRRemote(ir_pin)

signals = IRRemote.signals

while True:
    code = ir.decode_signal()

    if code == list(signals["signal_up"]):
        motors.move_forward(80)
    elif code == list(signals["signal_down"]):
        motors.move_backward(80)
    elif code == list(signals["signal_left"]):
        motors.turn_left(60)
    elif code == list(signals["signal_right"]):
        motors.turn_right(60)
    elif code == list(signals["signal_ok"]):
        motors.motor_stop()