Overview Arduino is an open-source platform designed for artists, designers, hobbyists, hackers and anyone interested in creating interactive objects or environments. It consists of a circuit board, which can be programmed and a software called Arduino IDE (Integrated Development Environment), which is used to write the computer code and upload this code to the physical board. An Arduino board can interact with buttons, LEDs, motors, speakers, GPS units, cameras, the internet, and even your smartphone or your TV!

WaziDev WaziDev is a development board proposed by the EU H2020 WAZIHUB project which integrates the ATMega328P MCU with a serial conversion chip (CH340/341) and provides access to all pins of the MCU. It also proposes advanced features to ease integration on production-level IoT devices. It has an embedded LoRa module that allows the developers to simply develop IoT sensor nodes as well as IoT actuator nodes for their IoT applications.

Overview Teensy boards are powerful 32-bit microcontrollers boards, mostly based on ARM Cortex-Mx core. The Teensy is a complete USB-based microcontroller development system, in a very small footprint, capable of implementing many types of projects. All programming is done via the USB port. Quoted from PJRC Teensy boards page Listed boards Teensy 4.0 board (specs, PlatformIO) is powered by NXP/Freescale i.MX RT1060 MCU, which features a 32-bit ARM Cortex-M7 at 600 MHz Teensy 3.