Pixhawk Clones – Selecting ArduPilot Copter Firmware

Backstory There are different (flight) controllers available that are named “Pixhawk”, but in this article, I want to concentrate on the mostly Chinese “clones”. Although “clone” is the wrong term here, since the whole Pixhawk platform is an open hardware project. So building and selling hardware of this design is perfectly legal (which doesn’t mean…

Simple MOSFET LED Switch for Pixhawk

The Pixhawk flight controller, using the ArduPilot Copter firmware, allows for switching one or more AUX pins as GPIO pins from low to high (or vice versa) using the provided “Relay” function. Unfortunately the STM32 MCU of the Pixhawk uses a 3.3 V logic voltage on the white/yellow signal wire, which means that most regular…