KiCad STM32WB55 Bluetooth development board in the Adafruit Feather form factor, with USB-C and STEMMA QT. Work in progress.
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Oct 26, 2026
#
stemma-qt
Here are 10 public repositories matching this topic...
SHT45 temperature/humidity breakout, Qwiic/STEMMA QT compatible — KiCad 9, open hardware (MIT)
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Jul 15, 2026
Work-in-progress USB-C current measurement schematic with STM32F042, MAX4239 amplifiers and STEMMA QT I2C; legacy KiCad sources and PDF.
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Oct 26, 2026
TMP108 Qwiic breakout board
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Sep 3, 2026
Arduino library for the ProtoCentral easyEMG surface EMG breakout: raw sEMG in microvolts, RMS envelope and muscle activation over I2C / Qwiic, with no external dependencies
arduino i2c arduino-library emg biomedical open-source-hardware biosignals qwiic tla2024 semg ina333 protocentral stemma-qt
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Nov 6, 2026 - C++
KiCad Lattice MachXO2 32-QFN FPGA breakout with STEMMA QT and DebugEdge. Fork of Chickadee Tech's design with suggested part numbers.
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Oct 26, 2026
This project is a modern, enhanced version of the original ISAC Beacon, designed to provide both short-range Bluetooth connectivity and long-range LoRa mesh communication using Meshtastic. It also integrates environmental sensors, NeoPixel visual feedback, and audio playback in a modular, solder-free design for accessibility.
iot neopixel esp32 adafruit air-quality ble lora environmental-monitoring qwiic meshtastic stemma-qt
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May 1, 2025
Arduino library for the ProtoCentral easyECG single-lead ECG breakout: filtered ECG in microvolts and heart rate over I2C / Qwiic, with no external dependencies
arduino i2c ecg arduino-library heart-rate biomedical open-source-hardware biosignals qwiic tla2024 ina333 protocentral stemma-qt
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Nov 8, 2026 - C++
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