from machine import Pin
import time

a2d0 = machine.ADC(0)
a2d1 = machine.ADC(1)
a2d4 = machine.ADC(4)
conversion_factor = 3.3 / (65535)

file1 = open("readme.txt", "w")

pin = Pin(15,Pin.IN,Pin.PULL_UP)

N = 0
print('Starting')

while pin.value():
    a0 = (a2d0.read_u16() * conversion_factor) 
    a1 = (a2d1.read_u16() * conversion_factor) 
    a4 = (a2d4.read_u16() * conversion_factor) 
    N = N + 1
    print(a0, a1, a4)

    file1.write(str(N) + " ")
    file1.write(str(a0) + " ")
    file1.write(str(a1) + " ")
    file1.write(str(a4))
    file1.write("\n")
    time.sleep(0.001)
    
file1.close()
print("Nimber of Samples = ",N)