Solution found!
Looking around at examples in https://docs.micropython.org/en/latest/library/machine.I2S.html
I noticed that the I2S "id: identifies a particular I2S bus; it is board and port specific" was set to 2.
Changing "I2S port" from 0 to 2, and keeping everything else the same; made things work.
Hello,
is there an example of using the ATOMIC SPK Base (NS4168) in UIFlow2 ?
I configured the I2S pins following the pins indicated at the bottom of https://docs.m5stack.com/en/atom/Atomic SPK Base
using Atom matrix, however I have not managed to get any audio out.
( I also read the "Atomic SPK Base Some IO conflict with ATOM Matrix's built-in hardware, soAtomic SPK Base is only applicable to ATOM LITE/ATOMS3 LITE" warning, but looking at the schematics and the pin-compatibility table unclear what that problem could be.)
Thanks for your help.
It took many hours to get WAV files playing, so I though I would share my findings here.
First the UIFlow UI does not show a "play WAV file" not in the SDCard section, the Speaker section, nor in the DAC section.
Second
from wav import wav_player
wav_player.playWav('/sd/myfile.wav')
fails with an I2S does not have MODE_MASTER error.
Third
import machine
dac0 = machine.DAC(25)
dac0.wavplay('/sd/myfile.wav')
does not work either, no sound is produced.
However the similar (according to the code)
from wav import wav
ww = wave.open('/sd/myfile.wav')
sample_rate = ww.getframerate()
# read all data, play in background
data = ww.readframes(ww.getnframes())
dac_buffer = array.array("B", data)
ret = dac0.write_buffer(dac_buffer, sample_rate, wait=False)
works fine. Finally !
If the sound file is big you can also use
while True:
data = ww.readframes(2048)
if len(data) > 0:
dac_buffer = array.array("B", data)
ret = dac0.write_buffer(dac_buffer, sample_rate, wait=True)
else:
break
or similar (notice the difference in wait=False or True)
I hope this helps future users.
In the end digging into the code of what M5Stack provides or not has been the best way to understand how to make the best out of the codebase.
(could not use UIFlow 2 due to SDCard issue)
I had a M5Stack Fire with UiFlow 1.0 and a working program that uses the SD Card, after upgrading to UIFlow 2 (last try with 2.1.5) I am not managing to make the SD Card work.
listdir("/") only shows /system and /flash.
Trying /sd gives an ENODEV. Trying to initialize the SDCard gives either an RGB light turning green (thus not right pins), or an ESP_ERR_INVALID_STATE if I try the suggest sdcard.SDCard(slot=2, width=1, sck=18, miso=19, mosi=23, cs=4, freq=1000000) initialization from UIFlow.
Some posts indicate that SDCard on UIFlow is not working since April 2024
https://community.m5stack.com/topic/2990/m5paper-sdcard-access/10
How to get SDCard working on UIFlow?
@mehulge stuck with same issue, did you ever found the fix?
@rodrigob For info I managed to get things going by patching https://github.com/m5stack/uiflow-micropython/ to add the Unicode font from examples/Advanced/Display/Display_Unicode in the firmware.
Hello,
I created a custom UIFlow2 firmare version (to add UTF8 font, see https://github.com/m5stack/uiflow-micropython/issues/25 ).
I can flash it via 'make flash_all', and load programs from https://uiflow2.m5stack.com via USB.
After editing partition_nvs.csv it will also connect to the wifi. I can also use the M5Burner to edit the wifi information. In both cases the Core will connect to wifi, but not to the cloud.
Via M5Burner I managed to "register" the device to my account, however when I keep the custom firmware it appears in https://uiflow2.m5stack.com as an unknown device (and thus cannot use it).
All the other attemps have failed to connect to the cloud (always appears are Private, never Public).
If I reflash the original firmware (without utf8) everything works as expected.
How can I have my custom firmware interact with https://uiflow2.m5stack.com via wifi too?
I am exploring the codebase of https://github.com/m5stack/uiflow-micropython (UiFlow2), and I see multiple mentions of M5Things however I could not find its code.
Could someone point me to it?
Hello,
I am trying to render some German text (or Spanish, or French), and I noticed that UiFlow2 is lacking the UiFlow Unicode24 font. I see fonts for Chinese, Japanese, and Korean, but not a generic Unicode one anymore.
What is the recommended approach to render European languages?
In general is there a way/code-snippet to store some fonts in the filesystem and load them at runtime?
I am trying to setup ESPNOW triggered sounds on a speaker.
I thought I could use the ATOMIC Speaker Base (NS4168) with the ATOMS3 Dev Kit w/ 0.85-inch Screen, however I notice in https://shop.m5stack.com/products/atomic-speaker-base-ns4168
the mention of "Atomic SPK Base Some IO conflict with ATOM Matrix's built-in hardware, so Atomic SPK Base is only applicable to ATOM LITE/ATOMS3 LITE"'.
What exactly the IO conflict ? (what can and cannot be done?) and what about ATOMS3 non-lite, would that work?
Comparing
https://shop.m5stack.com/products/atoms3-lite-esp32s3-dev-kit
and
https://shop.m5stack.com/products/atoms3-dev-kit-w-0-85-inch-screen
Both devices seem to have the same ESP variant the same IO pins, thus I could expect both to work fine.
Thanks for your guidance!
The only information I found is the post from
https://namakeguma.com/?p=93
Which indicates some inconsistent behaviour across devices, but that setShowLock(True) as expected batches the led update until the next show() (or setShowLock(False); show() ) call. (thanks Google translate!)
Official documentation or source code instead of random japanese online blog posts would be welcome.
Hello,
I am trying to get some fancy led animations from M5 micropython, however I am stuck with the lack of documentation and source code.
Done someone knows what _rgb_multi.Rgb_multi.setShowLock() does?
I can guess and do trial and errors, but having some documentation or source code pointers would help get things going much faster.
Thanks for the help.
I notice that UIFlow has a "play wav file" function for Core2 but not for the Fire controller. Is there a rationale for this?
Hello all,
I am new with m5stack. I bought some controllers and sensors.
From initial trials all behave as expected, except the IR sensor from the M5GO IoT Starter Kit.
When connected in GPIO mode and with IR ON, the IR state is always 1.
If IR OFF, then IR state fluctuates on state 0/1 somewhat randomly.
If the sensor is unplugged, then the state is always 0.
I did not manage to make the sensor react to another IR source or from putting objects in front of it (tried in dark environment too, suspecting influence of sunlight).
Any suggestion of what I should look for to make the sensor work?
What I am missing?
