M5Stack Photocell Receiver

PhotocellReceiver.py

from m5stack import lcd
import utime
import machine 

lcd.clear()
lcd.setCursor(0, 0)
lcd.setColor(lcd.WHITE)

pin = machine.ADC(machine.Pin(35, machine.Pin.IN))
pin.atten(machine.ADC.ATTN_11DB)

#スピーカー音を消す
#http://t-yosh.hatenablog.com/entry/2017/12/28/235947
dac = machine.DAC(machine.Pin(25))
dac.write(0)

lcd.font(lcd.FONT_Comic)
lcd.clear()
lcd.setCursor(0, 0)

while True:
    value = pin.read()
    if value > 600:
        lcd.print("1")
    else:
        lcd.print("0")

    print(str(value) + "\n")
    #１秒待ち
    utime.sleep(1)