analogDigital.py

analogDigital.py

'''
analogDigital.py
'''

from machine import ADC, Pin, PWM
from time import sleep_ms

led1Pin = Pin(27)
led2Pin = Pin(33, Pin.OUT)
adcPin = Pin(34)

adc = ADC(adcPin)
adc.atten(ADC.ATTN_11DB)
adc.width(ADC.WIDTH_10BIT) # 0 - 1023

pwm = PWM(led1Pin, freq=20000, duty=0)

button = Pin(12, Pin.IN, Pin.PULL_UP)
prev_val = button.value()
limit = 2
count = 0

while True:
    if not button.value() and button.value() != prev_val:
        count += 1
        msg = ' '.join(['Button pressed', str(count), 'times!'])
        print(msg)
        if count == limit:
            print('limit reached!')
            pwm.duty(0)
            count = 0
    
    if count == 0:
        print("ready!")
        led2Pin.value(1)
    elif count == 1:
        led2Pin.value(0)
        sensor_val = adc.read()
        print(sensor_val)
        if sensor_val >= 512:
            print('LED ON!')
            pwm.duty(sensor_val)
        else:
            print('LED OFF!')
            pwm.duty(0)
    prev_val = button.value()
    sleep_ms(20)