@nemelesic "Bruce" is hacking software and such is illegal.

Thanks for the update, ajb2k3. Good to know a full overhaul is in the works, that should deal with navigation and finding the right topics. Looking forward to seeing how it improves the forum experience.

@Boomvalt Xcode is OSX's dev environment and is needed for some low level functions needed for hardware programming even if you are not directly using it.

@felmue Finally got it working correctly. In addition to your code, I initialised the Pahub, and then changed the dip switch to 0x71. Additional units work fine when assigned to 0x71.
Thanks for the help!

@sgflux

I measured the voltage of the ‘5V pin’.
With the V2.4 I get 5 V,
with the V2.7 only 4.7V.

Could this be the reason why it only charges with a maximum of 150 to 200mA?

How can I increase the voltage output of the IP5306?

Is this possible via i2c?

@ulver Thanks for your kind comment. Yes, I hope my work will generate more interest on the LLM Module Kit. Looking forward to seeing announcements of advanced projects on the LLM Module Kit here soon.

To create a server with SIM800L, use GPRS to get a dynamic IP from your carrier. Enable TCP listening with AT+CIPSERVER=1,80. Forward incoming data to your M5Stack via serial. Since the IP is dynamic, use a DDNS service or periodically send the IP via SMS/email. Alternatively, have the M5Stack poll a cloud server for commands. SIM800L has limited capabilities, so keep the website simple (raw HTTP requests). Check the SIM800L AT command manual for TCP/IP setup details.

Hi!

Yes, the M5Stack Battery Module works with the M5Stack Fire 2.7. M5Stack's stackable header-pin design allows you to simply add modules like this one without needing to solder.

Use M2 screws (22mm or longer) and M2 brass spacers to securely assemble everything. This maintains the modules securely packed, which is ideal for preventing inadvertent disassembly, particularly in client-facing installations.

If you are in India, check out Robocraze. They are an approved M5Stack distributor, providing accessories and assistance for clean, professional builds.

Hope this helps!

Try lowering the baud rate to 115200 in the upload settings—921600 can sometimes cause issues, especially on macOS. Also, double-check your USB cable (some are power-only), and try a different USB port or hub. If you're using a USB-C to serial adapter, that might be causing noise.

Good afternoon.In such a large case and dimensions, make an expansion module with 16 inputs and 16 outputs. Of the 16 inputs, select and make 2, and if possible, then 3 high-speed encoder inputs. LEDs on the inputs and outputs of the display.

Make sure you're holding the "G0" or "BOOT" button while plugging in the USB or clicking "Burn"—this puts the Cardputer into flash mode. Also try a different USB cable (some are charge-only), and plug directly into your PC (avoid hubs). Lastly, check Device Manager to confirm the COM port is stable and not switching. If all else fails, try flashing with esptool manually via command line.

@ajb2k3 There was no previous firmware that I installed. This was an out-of-the-box installation. I downloaded the latest update - I think 2.2.7 - and that's when the problem occurred.
Also, when I went to press burn, there was no opportunity to erase before burning.

You have to capture a jpeg from the camera buffer and pass it to the llm... An example could be:

uint8_t* out_jpg = NULL; size_t out_jpg_len = 0; frame2jpg(CoreS3.Camera.fb, 255, &out_jpg, &out_jpg_len); CoreS3.Camera.free(); module_llm.yolo.inferenceAndWaitResult( yolo_work_id, out_jpg, out_jpg_len, [](String& result) { /* do something with result */ .... }, 2000, "ID"); free(out_jpg);

the result will contain:

{"bbox":["195.86","197.75","319.00","280.27"],"class":"keyboard","confidence":"0.69"}

HTH

Hello @wrs642

from this and your previous post I would guess that there is no battery connected or it is not charged (enough).

Thanks
Felix

Hello @Schnoble

clever! Maybe you could put your modified version into an Execute mpy code (eg. import)? This block can be found under System.

Thanks
Felix

Hello @robouden

hmm, running UIFlow2 on my M5CoreS3 and measuring current on USB-C I get about 140 mA / 5 V.

Is your M5CoreS3 maybe charging the battery?

Thanks
Felix

@xgonc

SoftwareSerial mySerial(1, 2); void setup() { mySerial.begin(115200); } void loop() { mySerial.write("Hello world!"); }

@kuriko Thank you!
I will use 2.14 for now.