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E-Fidget Lite

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Micha Albert
Micha
2231puppy
E-Fidget Lite

E-Fidget Lite

Summary

The E-Fidget Lite is a small fidget toy on a PCB. It uses a relay to create the feeling of a haptic "click". An ATtiny13A is responible for controlling the relay's interval, and a 6mm pushbutton connects the microcontroller to a coin battery when pushed. This device can be used to aid in focus & anxiety prevention, while being discreet and far less distracting than a fidget spinner.

Plan

I will order 5 boards from JLCPCB, who quotes $33.60 for the boards, economic assembly, and parts. Some parts, which I expect to be outside of the grant, will also come from Digi-Key (such as the battery holders which are not PnP-able, and the SOIC programming clip, and some jumper wires for programming.) These extra parts will cost $23.05. The total cost is $67.55, not including tax and shipping.

Design

I used KiCad for everything. (OSS and OSHW for the win!)