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Coin Cell POWER!We are super excited about this board, and it sounds like you all are too! It's a convenient way to use USB power instead of a coin cell to power a badge or small board, and is great for creating a display of your many #badgelife boards! It's a double-wide 3.2mm board that slides right into a CR2032 battery holder. It has a USB-C connector for power input, two JST PH style connectors to daisy-chain power to other badges, an onboard 3V LDO, a 3V/5V switch for power out to the coin cell adapter (because some badges use two CR2016 cells in series), and an on/off switch that only controls power out to the coin cell adapter, so you can turn off an individual badge in your display yet still daisy-chain power to all the rest of them. The final board will have two differences from the photo: a USB-C connector instead of micro-B, and a "waist" to be compatible with some top-entry coin cell holders.
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RBG RGBThis board has mostly been on the backburner due to parts shortages, but we're about ready to revive it, especially considering the disastrous decision the US Supreme Court has recently made to overturn Roe v Wade. This board was originally designed when Ruth Bader Ginsburg died, because sometimes designing a board can be therapy. She has glowing RGB LED eyes, which either cycle through the rainbow or pulse red, but either way show her intense displeasure with the current state of affairs. It's also a convenient development board for the ATTiny 4/5/9/10 series, with a connector that allows you to stick it in a breadboard and DIP switches that allow you to completely disconnect the onboard LEDs and use the ATTiny processor for your own purposes. Another switch isolates the programming pins, allowing for easy programming while still using those pins for other purposes. I mean, there are only 3 available GPIO! These ATTinys are the smallest, and arguably silliest of the entire series (starting at 512 bytes of flash and 32 bytes of RAM - not kilobytes, BYTES) and will encourage you to develop your programming skills to include direct port reading/writing, bit-shifting, and using the datasheet to set up simple peripherals. You can do all this while still using the Arduino IDE to upload programs, but you can't use any of their typical library functions because they take up too much code space! It's really a great way to play with "baremetal" programming because you just can't cheat.
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