# dac1_test.py
# dew.ninja  June 2021
# needs lag3 board to measure output
# connect jumper on DAC1 side

from machine import Pin, ADC, DAC
from utime import sleep_ms
import time
DACMAX = 255
adc = ADC(Pin(34)) 
adc.atten(ADC.ATTN_11DB) # range 0 - 3.6 V
dac1 = DAC(Pin(25))
while True:
    adcval = adc.read()
    dacval = int(adcval/16)
    print("dacval = "+str(dacval))
    if dacval>DACMAX:
        dacval = DACMAX
    dac1.write(dacval)
    print(time.ticks_ms())
    sleep_ms(1000)