Recently Active Topics

LILYGO TTGO LoRa32 Display "burn out" (loses intensity on much used pixels)

Andre — Tue, 29 Jul 2025 07:18:17 GMT

How to get a replacement display?

SquareLine Studio - GUI Builder for LVGL

pike2k — Thu, 03 Oct 2024 10:57:56 GMT

@rs77can Volos Projects on Youtube has started making videos on how to use SquareLine Studio with certain Lilygo products.

T4-S3 (H678) VBUS question

pike2k — Thu, 03 Oct 2024 10:46:13 GMT

Hi guys, long time since I posted.

I just finished my breadboard adapter for the OG T4-S3 and before I burn something up I thought I should ask where I can find info on what Voltage is accepted on the VBUS pin?

TIA.

Help with MySQL library code to connect to a remote database (LilyGo T-SIM7600X)

beck lowis — Sat, 07 Sep 2024 05:07:48 GMT

It seems like your connection is working fine. If you're testing further, especially for your Food Website, try running a few simple queries from your Debian laptop using mysql to ensure everything works smoothly between machines.

Problem uploading a Sketch to T-Beam Supreme S

Loyut — Thu, 22 Aug 2024 18:42:44 GMT

Did you format the softRF firmware, or can you still use it and upload your sketches?

SIM7600E-H module not doing MQTT

Anes — Mon, 19 Aug 2024 12:38:43 GMT

@bumptop Hi, I seem to have the same problem as you. My module is a SIM7670G, but otherwise I see precisely the same issue. Did you ever find a solution to this issue?
No matter what I do, the CMQTTSTART always returns ERROR. The same for all other MQTT related commands (with same exception as you).
I have tried many different execution orders, and I have read the application guides for the particular module, but nothing helps.

How to flash custom firmware to T-Keyboard

whatsthedeal — Mon, 12 Aug 2024 03:07:35 GMT

I’ve followed the instructions on the GitHub to compile the firmware with PlatformIO but I’m not sure how to actually flash the firmware. I can’t find any guides online. Is there a way to put the keyboard into bootloader mode? I know that there is on the T-Deck but I haven’t seen any reference to it on the keyboard.

T-QT C6 and NanoFramework

rkiss — Fri, 09 Aug 2024 19:39:57 GMT

I have just received my 5 pieces of very cool product based on the ESP32-C6 such as T-QT C6. I never seen on the market for ESP32-C6 something similar such as a small touch panel screen, PMU, etc. in the mini enclose. Notice, that the product description shows the following:
Attention: Currently, ESP32C6 can only be programmed using the Arduino IDE

So, I took this risk for order it anyway, because my development environment is the Microsoft Visual Studio and C# programming, and the result is the following screen snippet:

The above board is running my app such as an IoT Device connected to the Microsoft Azure IoT Central for handling and managing a device telemetry data. It's built using the NanoFramework .NET C# code.

In other words, the T-QT C6 has been flashed with the NanoFramework firmware, connected to the Visual Studio 2022 and using programming technique like at the other projects included its debugging.

Thanks for T-QT C6 team for creating this cool product and I am looking forward for its next version and extensions, for instance, some adapter (stack) to use sensors from the M5Stack product line.

TTGO Lora OLED V1.6.1 Battery Monitor

Readie_S — Mon, 29 Jul 2024 09:20:52 GMT

Hi,
I have the TTGO Oled Lora board version 1.6.1 looking at the schematics it looks like this board has a voltage divider for battery level monitoring but I can seem to find which pin it goes to as there seems to be a few schematics I can find but none specifically reference v1.6.1. I think it might be running to pin 26? I thought there might have been a example battery monitor script available somewhere but I cant find one?
Thanks

T-Display S3 AMOLED and Camera Shield Wrong Color

hav — Sun, 28 Jul 2024 03:52:03 GMT

same issue

LilyGo T A7670E development board SMS Sending .Regards!

ATSIMCOMATI — Wed, 24 Jul 2024 09:57:40 GMT

@atsimcomati

it seems I cannot edit , so here's an update

it's my provider, using another SIM I can send all the SMS's I want.

about T-Display S3 (TDS3) I2C problem?

llsummer — Sun, 21 Jul 2024 18:15:55 GMT

Hi all.

when test MAX30105 sensor, if use: TDS3+max30105+OLED without use TDS3's TFT, it works well.

this time when initialize TDS3's TFT by TFT_eSPI.h, the TFT init OK, but OLED and MAX30105 not work(no need both OLED and TFT works, just for testing);

if disable OLED and use TDS3's TFT to show the content, TDS3 stuck at the first page;

please let me know if need the testing code.

Thanks
Adam

Arduino compile problems

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How to Start Coding in Java?

Manoj Sahani — Tue, 16 Jul 2024 07:15:17 GMT

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Full stack developers can work on all aspects of a project, reducing dependencies on other team members and potentially speeding up the development process.Having knowledge of both front end and back end technologies gives full stack developers a holistic view of the project, enabling them to make better decisions and create more cohesive solutions.
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T7 S3 Crashing when using xTaskCreate()

frikolivier — Wed, 10 Jul 2024 11:37:23 GMT

I found the problem.

The xTask "blink_led()" was not in an infinite loop. It will execute once and exit thus, when RTOS want to schedule it again, it does not exists and crashes.

T-Display S3 AMOLED - I2C

teastain2 — Tue, 09 Jul 2024 15:37:13 GMT

@smile6905 Good to hear!

T-QT-C6 connectivity connector.

rkiss — Tue, 09 Jul 2024 08:55:51 GMT

In addition:

Also, why the external pins are not vertically organized in the 2 rows for easy connection, for instance I2C pins such as IO22, IO21, 3.3V, GND (4pins header) which it will allow to use a standard 4pins dupont header to Grove cable.

about the power supply for T-Display S3?

teastain2 — Mon, 08 Jul 2024 02:58:56 GMT

@llsummer Not the 5v pin or the 3.3v pin on the side of the board.
Only power with USB or through the battery charging 2 pin connector.
Period.

TTGO Lora32 oled Flash boot

teastain2 — Fri, 05 Jul 2024 01:12:26 GMT

@biker32 Whew, there is a bewildering number of LilyGO TTGO LoRa boards and naming/numbering conventions and all I can see is that your board is not very alike to the RandomNerdTutorials board and the OLED pins are different, for example.

I have run out of ideas, so all I can suggest is check all pins defined in your sketch, against the image of the board pinout you provided.

Also the hard way to troubleshoot is to comment out the LoRa stuff until it compiles and then slowly add features until it crashes. (Gonna be a long night)

oof. I just thought...what 'ESP32 by Espressif' board def are you using? The newer ones break LilyGO products. Try v2.0.15