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:question:1) can you move the battery to a module rather than built in? So many boards out there assume battery power rather than making it optional 90% of my use cases are wired
2) since the schematic isn’t out yet: what graphics controller are you using? Make sure it’s something that doesn’t take up too much of the esp32 gpio or requires precision timing. Many of the options out that are similar pixels can be a pain to use due to this.

:a: Hi, Keith. Thank you very much for your suggestion.

  1. Build in battery, the model of build in battery is BL-5C, it’s a universal battery for Nokia, the popuse of the build in battery is designed to be ready to use out of the box.

  2. How about use 2x18650 batteries? The capable of reaching up to 7000mAh.

  3. We are using the LVGL for the graphics, and we will share the SCH next week on https://rimu.me.

  4. Once we finish developing the promised modules, we’ll start working on the network development. ESPHome is something to consider. Thank you very much for your sharing.

We noted in our community. https://community.rimu.me/t/new-requirment-battery/144