Atom

Atom Lite not publishing topic.

Mon, 18 May 2026 22:17:10 GMT

How to change AtomS3R-CAM's Camera to AtomS3R-M12's Camera ？

Mon, 18 May 2026 13:22:40 GMT

OpenAI Voice Assistant For AtomS3R - How do I start a chat? Is there a wake phrase?

kuriko — Sun, 05 Apr 2026 20:23:21 GMT

@wwhite https://docs.m5stack.com/en/guide/realtime/openai/atomic_echo_base

Echo Atom and Echo Pyramid Not working with Home Assistant

Sun, 22 Mar 2026 10:46:21 GMT

AtomS3R M12 camera sync lines and image quality issue with esphome

shaulliv — Wed, 18 Mar 2026 12:13:29 GMT

@shaulliv I also tried changing the following settings: frame_buffer_count: 2 frame_buffer_location: dram and priority: 1000 lowered resolution to 320X240. and External_Clock frequency: 8MHz All without success.

BMI270 on AtomS3R (C126) sign-flips in accelerometer output around high-acceleration events

easytarget — Tue, 10 Mar 2026 17:06:36 GMT

@doop4 I'm not familiar with the M5Unified driver; but I've worked with the bmi270 and written a micropython driver for it.. Despite your pillow; you will still get a bit of bounce.. (I've spent time testing this chip, it's very hard to not get any bounce when you do this sort of test.) But, I think you are seeing the device going out of range; at which point you get weird/invalid readings. I dont see anywhere in your code setting the acceleration range; the max is +/- 16G, but it defaults to +/- 8g, which is where your readings appear to fail. I guess M5Unified has a method for setting this? Try the biggest range. Also; you can set filtering based on an average mode; the default is to average 4 readings (the sensor runs at 20MHz) but this can be set all the way up to 128. The M5Unified driver is using 'direct readings' (just like my driver), do not confuse this with 'FIFO' mode; which is an automated, IRQ triggered high-speed burst capture method. You read the dataset out from the chip buffer after the event has ended. AFIK the M5 drivers do not support this.

High acceleration axis cross-talk on BMI270 on AtomS3R (C126)

Tue, 10 Mar 2026 17:02:43 GMT

Issues building a driving robot with atomic motion base, ToF sensor and 360 servos

Fri, 20 Feb 2026 12:40:32 GMT

Different reset behaviour of Atom Matrix and Atom S3 Lite?

felmue — Thu, 19 Feb 2026 14:31:33 GMT

Hello @mb M5Atom Matrix has a dedicated USB-Serial chip which is not affected by the ESP32 reset and thus is keeping the serial connection alive. In contrast the ESP32S3 inside M5AtomS3 Lite has USB built-in (and doesn't need a dedicated USB-Serial chip). The 'downside' being what you observe - resetting ESP32S3 also resets the USB connection. Thanks Felix

AtomS3R - Black screen with UIFlow2 firmware (Backlight works, no image)

10sor — Mon, 26 Jan 2026 11:49:50 GMT

@kuriko SN: C12625050101908 [image: 1770296302451-4e9f2ec2-abb0-4f9a-897c-0ecec8711f33-image.png]

Made compass on atomS3R

Wed, 14 Jan 2026 19:17:10 GMT

Atom Joystick Schematic is incomplete!

holofloh — Sat, 10 Jan 2026 12:38:40 GMT

@Kabron What about P1 and P2? [image: 1768207531294-9c3ea450-9b4b-4402-85a2-80aa53d68031-grafik.png]

AtomS3U USB otg.

Krist — Fri, 02 Jan 2026 15:34:21 GMT

I tried the following code: import os, sys, io import M5 from M5 import * from unit import KeyUnit from usb.device.keyboard import Keyboard from usb.device.hid import KeyCode keyboard = None key_0 = None def key_0_wasClicked_event(state): global keyboard, key_0 keyboard.set_keys(KeyCode.A, 0, 0, 0, 0, 0) def setup(): global keyboard, key_0 M5.begin() keyboard = Keyboard() key_0 = KeyUnit((1, 2)) key_0.setCallback(type=key_0.CB_TYPE.WAS_CLICKED, cb=key_0_wasClicked_event) def loop(): global keyboard, key_0 M5.update() key_0.tick(None) if __name__ == '__main__': try: setup() while True: loop() except (Exception, KeyboardInterrupt) as e: try: from utility import print_error_msg print_error_msg(e) except ImportError: print("please update to latest firmware") And I got the following error: Traceback (most recent call last): File "main.py", line 5, in ImportError: no module named 'usb' So the usb module is not present in the firmware. Is that on purpose, or is this a bug? Is there a way to add the library?

M5Atom Matrix, M5Unfied, controlling leds

HappyUser — Wed, 24 Dec 2025 14:26:22 GMT

@felmue thanks. Indeed. Leaving out m5unified does the trick. Though I haven’t read anything about an incompatibility between M5Unified and FastLed. Regards.

Reset IP - AtomS3 and AtomS Lite

Tue, 23 Dec 2025 14:36:44 GMT

atomS3R IMU magnetometer

Mon, 22 Dec 2025 04:17:07 GMT

AtomS3R with Atomic Echo Base Chatbot

arn0nym — Fri, 19 Dec 2025 23:24:38 GMT

@alperkal said in AtomS3R with Atomic Echo Base Chatbot: Hi, I have the and have this set up as described on the website. All good and works as expected. But I want to modify the code and add more features: eg: only activate listening when we press the button. Now the documentation points me to a branch in this repository. https://github.com/m5stack/openai-realtime-embedded-sdk But when I build from the source and install on the device without making any change, it stops working. It looks like the version on M5Burner has more than the given driver repository. So can we get access to full source code and the missing link between the embedded sdk and the image that is installed from the m5burner? when I Install the OpenAI VOice Assistant firmware for S3R Echo Base it does nto do anything for me. just displays the OpenAI logo and that's it. the comments on the firmware also say that it mostly does not work :/ I was searching left and right to find a proper sketch or any code that I can configure myself, too!

Issue Setting Up XiaoZhi Voice Assistant on AtomS3R (No Wake Word Response)

Fri, 19 Dec 2025 00:51:35 GMT

Is it possible to use more than one I2C Unit with AtomS3R? (Like AtomS3R + RFID Unit + Dual Button Unit

felmue — Tue, 11 Nov 2025 17:22:43 GMT

Hello @Rusticus42 there is a solution: use a M5PbHub unit (which is an I2C unit) to read the button states of the Dual Button unit. I created an example in the UIFlow2 Project Zone: M5AtomS3_RFID_PbHub_DualButton_Test_UIFlow2.3.7 Note: I do not have an M5AtomS3R so you probably need to adapt the example. Thanks Felix

Hello - Does anyone have a working version or Ardunio sketch to testthe mic and speaker on atoms3r+echo base(K147 unit - Ai chatbot) please? i tried all the documentation sketches and nothing works. Please help.

kuriko — Sat, 08 Nov 2025 02:42:12 GMT

@alkan123 What did you mean by nothing works? This is a firmware for testing AtomS3R+Atomic Echo Base: https://drive.google.com/file/d/1WpkKjaky1qSQvfkpKsOvaeMFO-Kb1zPO/view?usp=drive_link

AtomS3R-CAM AI Chatbot - quick start available?

Thu, 30 Oct 2025 21:56:01 GMT

AtomS3R-CAM and telegram bot

Fri, 29 Aug 2025 08:28:31 GMT

Help with Grove and other Wires for M5Atom

konacurrents — Thu, 21 Aug 2025 16:36:07 GMT

@kuriko Dupont, that looks promising. Thanks. For the 4 pins of the HDriver to the 4 pins on the M5Atom (and 2 other pins too) - I would need a female at one end, and a male at the M5 end. You gave me a good path forward.

[HELP] Audio From M5Stack Atom Echo Appears Sped Up / Choppy / Low Quality

Wed, 23 Jul 2025 18:40:51 GMT

ECHO not working

Devigan — Fri, 11 Jul 2025 09:40:58 GMT

@hacxx tryed still same