# Looking for Some Best Microcontroller for a DIY Smart Home Project?

**URL:** <https://forum.core-electronics.com.au/t/looking-for-some-best-microcontroller-for-a-diy-smart-home-project/21974>\
**Category:** Uncategorized\
**Created:** [1 March 2025 06:58 UTC](https://forum.core-electronics.com.au/t/looking-for-some-best-microcontroller-for-a-diy-smart-home-project/21974 "2025-03-01T06:58:38Z")\
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**Author:** ![David173576](https://avatars.discourse-cdn.com/v4/letter/d/3ab097/32.png) [@David173576](https://forum.core-electronics.com.au/u/David173576)\
**Post date:** [30 March 2025 07:02 UTC](https://forum.core-electronics.com.au/t/looking-for-some-best-microcontroller-for-a-diy-smart-home-project/21974/8 "2025-03-30T07:02:34Z")

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Have any of the Home Assistant / ESPHome gurus here had any luck with the Waveshare ESP32-C3 mini dev board  
[https://core-electronics.com.au/esp32-c3-mini-dev-board-iot-wifi-bluetooth.html](https://core-electronics.com.au/esp32-c3-mini-dev-board-iot-wifi-bluetooth.html) and ESPHome?

I have a situation of the device is ‘online’ (ESPHome Builder page) yet it is ‘unavailable’ when I look at on the device page. It has a motion sensor attached and I get a ‘detected motion’ and ‘became unavailable’ for the exact same second I reboot it (although ‘online’).

Not had much luck searching the HomeAssistant website, tried numerous things unsuccessfully

- board: esp32-c3-devkitc-02
- static IP has been assigned
- power\_save\_mode: none
- fast\_connect: true  
Beginning to wonder if the board is ‘too slow’ for my Wifi, but lower speed set to 1MB.

Any thoughts / ideas are much appreciated. Dave

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