#Include the library files
"""
IR remote codes:
===============

switch on/off - 162
MENU - 226
TEST - 34
Plus (+) - 2
Back - 194
left (|<<) - 224
play (>) - 168
right (>>|) - 144
zero (0) - 104
minus (-) - 152
C - 176
1 - 48
2 - 24
3 - 122
4 - 16
5 - 56
6 - 90
7 - 66
8 - 74
9 - 82
"""

import time
from machine import Pin, freq, PWM
import print_error
from nec import NEC_8

#Define the IR receiver pin and motor pins
pin_ir = Pin(12, Pin.IN)
ENA = PWM(Pin(2))
IN1 = Pin(3,Pin.OUT)
IN2 = Pin(4,Pin.OUT)
IN3 = Pin(5,Pin.OUT)
IN4 = Pin(6,Pin.OUT)
ENB = PWM(Pin(7))

# speed of this car
speed = 60000 # 0 - 65025
ENA.duty_u16(speed)
ENB.duty_u16(speed)

Up = 2
Down = 152
Left = 224
Right = 144
Stop = 162

def decodeKeyValue(data):
    return data
    
# User callback
def callback(data, addr, ctrl):
    if data < 0:  # NEC protocol sends repeat codes.
        pass
    else:
        print(data)
        if data == Up:
            forward()
            print("UP")
        elif data == Down:
            backward()
            print("DOWN")
        elif data == Left:
            left()
            print("LEFT")
        elif data == Right:
            right()
            print("RIGHT")
        elif data == Stop:
            stop()
            print("STOP")
        else:
            print("Unknown")

def forward():
    IN1.on()
    IN2.off()
    IN3.on()
    IN4.off()
    
def backward():
    IN1.off()
    IN2.on()
    IN3.off()
    IN4.on()
    
def left():
    IN1.on()
    IN2.off()
    IN3.off()
    IN4.on()
    
def right():
    IN1.off()
    IN2.on()
    IN3.on()
    IN4.off()
    
def stop():
    IN1.off()
    IN2.off()
    IN3.off()
    IN4.off()
        

ir = NEC_8(pin_ir, callback)  # Instantiate receiver
ir.error_function(print_error)  # Show debug information

try:
    while True:
        pass
except KeyboardInterrupt:
    ir.close()