Powering from 3V coin cell to VCC, using I/O pin as supply GND - Arduino Stack Exchange
Single Cell Boost Converter Circuit using Coin Cell – 5V Output
12mm Coin Cell Breakout w/ On-Off Switch : ID 1867 : $2.75 : Adafruit Industries, Unique & fun DIY electronics and kits
Single Cell Boost Converter Circuit using Coin Cell – 5V Output
Arduino On Off Button and Coin Cell Power Supply
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This Is the Watch That Makes a Coin Cell Look Awesome #WearableWednesday #wearabletech @hackaday #Arduino « Adafruit Industries – Makers, hackers, artists, designers and engineers!
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