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Turning a Bluetooth Caliper into a FreeCAD Input Device

https://hackaday.com/2026/04/05/turning-a-bluetooth-caliper-into-a-freecad-input-device/

Turning A Bluetooth Caliper Into A FreeCAD Input Device

It’s a common ritual: whipping out those calipers or similar measuring devices to measure part of a physical object that we’re trying to transfer into a digital model in an application …

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noisio

@hackaday Michael Egger did this with the cheap ones by adding ESP32 Bluetooth. Here are the project files: https://github.com/mirdej/calipers/tree/main/firmware/lib/Calipers

calipers/firmware/lib/Calipers at main · mirdej/calipers

Bluetooth enabled Calipers. Contribute to mirdej/calipers development by creating an account on GitHub.

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