R307 Optical Fingerprint Scanner Library for Arduino – Documentation

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Documentation for R307 Fingerprint Scanner Arduino Library. Includes library function references, example sketches and troubleshooting tips.

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Nordic Semi nRF9160 : Low Power LTE-M and NB-IoT Wireless Modem for Cellular IoT Applications

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Nordic Semiconductor's nRF9160 is a low power LTE-M and NB-IoT wireless modem available in a small footprint System-in-Package and is targeted for Cellular IoT applications.

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The Little Things for A Dream : Story of CIRCUITSTATE

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Read about how CIRCUITSTATE Electronics was born, its mission and driving philosophy.

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QUARK: Open Source Handheld Electrical Measurement Probe based on ESP32 and Arduino

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QUARK is an open source handheld electrical measurement and debugging tool designed by Sergey Ismulin. It is based on ESP32 and uses the Arduino framework.

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BioAmp EXG Pill – Open Source Biopotential Analog Front-end Module can Measure EEG, ECG, EMG and EOG

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BioAmp EXG Pill is a single channel biopotential analog front-end module developed by Upside Down Labs. It can measure EEG, ECG, EMG and EOG and the project is completely open source.