Bluetooth
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QUARK
A simple, open source, wireless, Arduino-based electronics multitool with a full-color screen and touch-based controls
Chhavi
A wireless, open source, ESP32-based fingerprint sensor with optional NFC
Wappsto:bit
BBC micro:bit + ESP32 for easy IoT connectivity
Data Fitness Connector (DFC)
Wirelessly connect your Peloton bike to third-party apps, fitness watches, and more
Watchy
A fully open source & customizable E-Ink watch
USB armory Mk II
A tiny, open source USB computer for security applications
ScoutMakes Bluetooth Fun
Open source, CircuitPython-compatible, Bluetooth-enabled STEM electronics kits
FemtoBeacon
A tiny, open hardware motion sensor with Wi-Fi & Bluetooth capabilities
BLYST840
A fingertip-size ARM M4F module with Bluetooth 5.2, Thread, Zigbee and 46 I/O
Blip
Nordic nRF52840 Dev Board with Sensors and Debugger
FEMU
An ESP32 Wi-Fi/Bluetooth board that fits in a USB port
SuperB
An open, Bee-compatible ESP32 module for quickly and easily adding Wi-Fi and Bluetooth
Polar
An open-source, all-inclusive, combined device for monitoring and tracking
BLYST Nano
The finger-tip sized ARM Cortex-M4F module with BT 5, BT Mesh, and 30 I/O
Sensything
Multi-sensor data acquisition, processing, and Wi-Fi/Bluetooth communication in a single, open source board. Sense anything.
zOrigin
A low-power, low-cost, wireless wearable built with chip-stacking technology.
HeartyPatch
An ECG patch with HRV monitoring that's open source, affordable, and Wi-Fi/Bluetooth connected.
Hornbill
An affordable, rugged, secure, and open hardware platform for battery powered connected things with ESP32
