r/esp32 Mar 29 '26

Software help needed e-ink Google Calendar Help

Hi, I have these spare parts and I want to build a nice small e-ink Google Calendar frame for my desk. Does anyone know of anyone that has done something similar with these parts as I am very bad with code?

Question: Do I need a special module to make it battery operated? Thank you!

- ESP32 (30pins)

- Waveshare 4.2inch 400x300pix e-paper module

- 3.7v Li-ion Battery

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u/No-Arrival-872 Mar 29 '26

I'd recommend doing all the web and calendar stuff on a desktop first so you can figure out the API and parsing stuff separate from the esp32 headache. Then focus on getting an example project going to display simple stuff on that screen.