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What useful thing would you build with a MCU development board? (programming.dev)

submitted 1 month ago* (last edited 1 month ago) by binaryqueen@programming.dev to c/asklemmy@lemmy.world

6 comments fedilink hide all child comments

I've built my own intercom system (speaker & mic), door bell, electric door opening, and camera system with an iOS companion app and integrated all of it in my old door bell system.

Technically, I built my own "Ring" system without Cloud reliance using ESP-IDF SDK, a few MCU boards (XIAO ESP32-S3s and one C6), some capacitors and resistors, and push buttons + Tailscale setup. (Total project length: 3-4 months)

Out of boredom I also built a Bluetooth Mic Bug with a 200mah battery with a Nordic Semiconductor MCU (nRF54).

That being said, my own "Ring" system is the stuff I'd say is really useful to me, while I'd consider the Bluetooth Bug as an experiment, because I just wanted to test nRF Connect SDK.

I'd like to build more useful things, what would you build? I'm open to anything useful, bonus if it's totally insane

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[–] MantisToboggon@lemmy.world 3 points 1 month ago (1 children)

I want an iron man suit please.

[–] RodgeGrabTheCat@sh.itjust.works 3 points 1 month ago (1 children)

The nanotech one.

[–] MantisToboggon@lemmy.world 1 points 1 month ago (1 children)

Nah fuck that gimme the analog one.

[–] binaryqueen@programming.dev 1 points 1 month ago

I haven't seen iron man. What can it do? Wearables are interesting.