@scheeri The 12V input voltage is a bit too large. 5V input can be used normally, but this product does not have an external power input pin. Therefore, you can only use USB power supply or power supply. I am so sorry.

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@mohir https://www.arduino.cc/en/Tutorial/HomePage
This is the official tutorial site about Arduino

https://github.com/Xinyuan-LilyGO/LilyGo-T-Display-S2
This is the GitHub demo code about T-DISPLAY-S2

@errolt
https://github.com/LilyGO/TTGO-ESP8266-0.91-SSD1306/blob/master/t12_8266_v1.3.pdf
The schematic is here

Hello @adam2809 , do you mean this one ? https://www.aliexpress.com/item/4000542688096.html

it can be charged via USB-C too , and both they (Solar/USB) can also charge the battery .
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@ckuehnel that's a very good project, thank you for sharing and your recognition of our products, are you a software/hardware engineer? Look forward to have more cooperation with you , you could contact us at any time if you have any suggestions or ideas for us .

Hello @reddai ,Thank you very much for your support .
We have several type epaper products, which one you used now ?
Currently we are more focused on hardware customization, or could you tell us more detail about the software you want?we can check for you first .
Here is our Github for reference if it is needed.

@Lilygo Hey could you please respond to my problem in thetechnical discussion page about location problems on the LilyGo T-Call SIM800?

@yakuzja There are two ways to get started quickly

Use the Arduino IDE and install the ESP32 support package. Use the VSCODE PIO plug-in, this plug-in can automatically configure the environment for you, the compilation speed is relatively fast, and it also supports Arduino functions and libraries

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@ckuehnel ![alt text]![0_1630891882486_IMG_4333.JPG]
Hello, this is the battery wiring method for the extended backplate.The battery type is 3.7V lithium.
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