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.
Arduino Pro adds Portenta H7 Lite, a stripped down version of Portenta H7, without the high resolution video interface and Wi-Fi and Bluetooth features. H7 Lite costs $31 less than H7, and is aimed at more affordable IoT and Industry 4.0 solutions.
How to Program Raspberry Pi Pico with Arduino IDE – Steps for Installation and Uploading Example Sketches
Tutorial on installing RP2040 Mbed OS packages through Arduino IDE, compiling and uploading sketches to Raspberry Pi Pico microcontroller board.
Mbits is a BBC micro:bit compatible STEM educational board from Elecrow based on ESP32 SoC. Mbits costs less than micro:bit and supports Letscode visual programming and Arduino.
Upside Down Labs BioAmp EXG Pill v0.7 Biopotential AFE: Hardware Overview and Interfacing with Arduino
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.
tCam-Mini is a wireless thermal imaging module based on ESP32 and FLIR Lepton 3.5 Infrared camera module. The open source project is created by Dan Julio and was crowd funded through Hackster Launch and GroupGets.