Conexio Technologies' Stratus is an open source LTE-M/NB-IoT Cellular-IoT development kit based around Nordic Semi nRF9160. Stratus can charge battery from solar power & comes with 500 MB global data plan. Stratus will be available on Crowd Supply.
This post gives you the hardware overview of BioAmp EXG Pill v0.7 and shows how it can be interfaced to Arduino Uno and run the examples to read ECG and heart beat.
Jupiter Nano is a high-performance embedded microprocessor development board that can run Linux and is based on Microchip's ATSAMA5D27C-LD1G. Nano is an open source project created by Adam Feuer from Starcat LLC.
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.
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.
