from machine import Pin
import time
import neopixel

NUM_LED = 16
leds = neopixel.NeoPixel(Pin(15), NUM_LED)
btn = Pin(19, Pin.IN, Pin.PULL_UP)


leds[0] = (0, 255, 0)
leds.write()

c = 0
elapsed_time = 0
button_pressed = False  
ta = 0
while True:
    btnVal = not bool(btn.value())

    if btnVal and not button_pressed:
        c = c + 1 
        
        t = time.time()-ta
 
        
        print(t)
        if t < 1:
            leds[c] = (0, 255, 0)
            
        elif 1 <= t < 2:
            leds[c] = (0, 0, 255)
            
        elif t >= 2:
            leds[c] = (255, 0, 0)
            

        button_pressed = True  
        start_time = 0
        leds.write()
    elif not btnVal: 
        button_pressed = False

    time.sleep(0.01)