This is because UIFlow2.0 sucks with the M5Go. Almost no hardware works. I would abandon all the silly BS and go right to PlatformIO if you want to avoid pulling your hair out.
This ecosystem is so convoluted. I thought I might buy these for presents for kids. No way. Your average parent could not make this shit work ever.
How do you deprecate an API and not have documentation for the new API?
Here's the docs for the button class:
https://docs.m5stack.com/en/arduino/m5unified/touch_class
Where are the docs for the Display class? No one knows.
Where is the comprehensive, definitive documentation for this library? NOWHERE.
It has been 2 years.
I've loaded a small, mono, 16-bit, 44.1kHz audio file into flash in UFlow 2.0. It plays fine within UFlow. No matter what I do, I get an ENOENT error trying to read the file.
Traceback (most recent call last):
File "<stdin>", line 26, in <module>
File "<stdin>", line 18, in loop
OSError: [Errno 2] ENOENT
a snippet of the code from the Python side of things:
def setup():
global rgb
M5.begin()
Widgets.setRotation(1)
Widgets.fillScreen(0x222222)
rgb = RGB()
Speaker.begin()
Speaker.setVolumePercentage(0.5)
def loop():
global rgb
M5.update()
Speaker.playWavFile('/flash/res/audio/test1.wav')
if Speaker.isPlaying():
rgb.fill_color(0xffffff)
time.sleep(2)
No code I've downloaded from other people works either! I can play tones out of the speaker, I can read images out of flash. I cannot read audio files out of flash.