Optiboot (an older version) is installed by default on the Arduino Uno and (as of 2018) official Arduino Nano boards. It can be installed on all older mega8, 168 or 328 based Arduinos. As of 2019, ...

Also: I built my own Wi-Fi router with a Raspberry Pi for Starlink and solar control - here's how. A Pi 5 can use as much as 12 W of power (and that's before you hook up various H ...

Implement a USB PD protocol analyzer, a USB PD trigger board or a more sophisticated power sink using a few additional components and simple Arduino code. Supports several STM32 microcontrollers.