ESP32 AirTag-like board hardware requirements

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
20/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Stale
Tech stack
embedded-iot
Domain
embedded-iot

Research direction

No repository files, tests, or entry points are mentioned. The issue is an open-ended discussion of hardware requirements for an ESP32 AirTag-like board, so completion criteria and implementation scope would need to be established first.

Written by the indexing model from the issue text.

Description

question

Hi all, since I haven't seen any type of esp32 based boards by the usual suspects (ttgo, lilygo, lolin) that would fit my personal requirements for an AirTag-like board my question is: What board are you guys using beyond development-boards?

Technically it could just come in the form of a battery holder that routes out the programming header from a micro32 board.

My ideal board would:

  • run on CR2032 (maybe larger) cell
    • No WiFi RF startup shouldn't be a problem
    • Not sure how long the cell can provide up to 2.5V under load
  • be based on
    • led-less micro esp32 module LilyGo Micro 32 comes to mind
    • OR esp32 directly on board (much more effort to design specific board)
  • ADC for voltage readout
  • have header or test-pads (VCC, GND, IO0, TX, RX) to connect to programming base

Since this is not much, I am sure I forgot a lot... What do you guys think? Any dev board out there I am missing (round design? battery management included?)

Thanks for any ideas 😊

Dominant language
Swift
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