Shared Projects

UNTESTED: Stemma Host FeatherWing: The Stemma Host FeatherWing is a single Stemma or StemmaQT interface, compatible with the Adafruit Feather format. It is designed for use with a Feather MCU board such as the Feather M4 Express and will selectively communicate via UART (RX/TX) or I2C (SDA/SCL). The Stemma connector power is provided by the host Feather and is selectable for either 3 volts or ~5 volts. Stemma 2.0mm and Stemma-QT 1.0mm connector types are supported. For use ONLY with Feather MCU boards that provide at least a 3.3-volt power source. USB or battery power is needed for Stemma ~5-volt signals.

StemmaWing Backpack: A stackable add-on backpack that transforms a UART or I2C FeatherWing into a self-powered standalone Stemma or Stemma-QT interface.

A minimal but large RTC clock in a Pelican 1040 case. Powered by CircuitPython.

A Eurorack daughterboard for the ICE Power Module. Inputs: +/-12V; switched outputs: +/-12V.

ItsyBitsy M4 Breadboard Adapter: A stacking breakout board to adapt the ItsyBitsy M4 Express for use with a typical breadboard or protoboard. Additional wire or pin/header connections, a LiPo battery jack and charging circuit, power indicator LED, and a buffered 3/5v Stemma (I2C) jack are included. M2.5 screw ears for panel mounting.