1  """THIS EXAMPLE REQUIRES A SEPARATE LIBRARY BE LOADED ONTO YOUR CIRCUITPY DRIVE.
 2  This example requires the adafruit_irremote.mpy library.
 3  
 4  This example uses the IR transmitter found near the center of the board. Works with another CPX
 5  running the cpx_ir_receive.py example. Press the buttons to light up the NeoPixels on the RECEIVING
 6  CPX!"""
 7  import time
 8  import pulseio
 9  import board
10  import adafruit_irremote
11  from adafruit_circuitplayground.express import cpx
12  
13  # Create a 'pulseio' output, to send infrared signals from the IR transmitter
14  pwm = pulseio.PWMOut(board.IR_TX, frequency=38000, duty_cycle=2 ** 15)
15  pulseout = pulseio.PulseOut(pwm)
16  # Create an encoder that will take numbers and turn them into NEC IR pulses
17  encoder = adafruit_irremote.GenericTransmit(header=[9500, 4500], one=[550, 550],
18                                              zero=[550, 1700], trail=0)
19  
20  while True:
21      if cpx.button_a:
22          print("Button A pressed! \n")
23          cpx.red_led = True
24          encoder.transmit(pulseout, [66, 84, 78, 65])
25          cpx.red_led = False
26          # wait so the receiver can get the full message
27          time.sleep(0.2)
28      if cpx.button_b:
29          print("Button B pressed! \n")
30          cpx.red_led = True
31          encoder.transmit(pulseout, [66, 84, 78, 64])
32          cpx.red_led = False
33          time.sleep(0.2)