UIFlow Guide
使用dac0通道在25引脚输出波形
from m5stack import *
from m5ui import *
from uiflow import *
import machine
import time
setScreenColor(0x222222)
dac0 = machine.DAC(26)
while True:
dac0.write(0)
wait(1)
dac0.write(255)
wait(1)
wait_ms(2)
dac0 = machine.DAC([pin])
dac0.write(255)
dac0.beep(1800, 200, 0)
dac0.waveform(1800, dac0.SINE, duration=200, scale=0, offset=0, invert=0)
dac0.stopwave()
dac0.freq(1800)