# Program activare transmisie la apasare buton
# Pot fi utilizate microintrerupatoare k1, k2, k3


import nrf24l01 
from machine import Pin, SPI
import time
led = machine.Pin("LED", machine.Pin.OUT)   # led de pe placa, sau 25 la clasic
spi = SPI(0, sck=Pin(2), mosi=Pin(3), miso=Pin(4))
nrf = nrf24l01.NRF24L01(spi, Pin(5), Pin(8), channel=108,payload_size=16) # canal mai liber

nrf.set_power_speed(nrf24l01.POWER_2, nrf24l01.SPEED_250K) # propagare mai buna
nrf.open_tx_pipe(b"Pico1")   # IP al procesorului destinatie, byte string (max 5)

nrf.start_listening()
nrf.stop_listening()

g=Pin(20,Pin.OUT)  # led green activ cu 1
y=Pin(21,Pin.OUT)  # led galben
r=Pin(22,Pin.OUT)  # led rosu

k1=Pin(17, Pin.IN, Pin.PULL_UP) # buton verde
k2=Pin(18, Pin.IN, Pin.PULL_UP) # buton galben
k3=Pin(19, Pin.IN, Pin.PULL_UP) # buton rosu
g.value(0)   # initial stins
y.value(0)
r.value(0)


def green(a):    # handler buton verde
    #machine.disable_irq()
    g.value(1)
    time.sleep(0.1)
    g.value(0)
    nrf.send(b"0")
    #machine.enable_irq()
    
def yellow(a):   # handler buton galben
    y.value(1)
    time.sleep(0.1)
    y.value(0)
    nrf.send(b"1")
    
def red(a):      # handler buton rosu
     
    r.value(1)
    time.sleep(0.1)
    r.value(0)
    nrf.send(b"2")
    
k1.irq(trigger=Pin.IRQ_FALLING, handler=green)  # fara debounce
k2.irq(trigger=Pin.IRQ_FALLING, handler=yellow)
k3.irq(trigger=Pin.IRQ_FALLING, handler=red)


while 1:     # pentru a semnaliza sistem activ
    
	led.on()
	time.sleep(0.5)   # temporizare 0,5 secunde
	led.off()
	time.sleep(0.5)