The smallest hardware running ardupilot? It is Pixracer?

[OlivierB (Olivier Brousse)]

Yes I think so. But I’d double check there, there are a few variations…

New OS free F4Light HAL

[image] Thanks to the work of @night_ghost on his own fork with help from @tridge to have it merged in master, we now have a new HAL in Ardupilot master. This new HAL is, as the name suggests, really light because @night_ghost has implemented the functions of a light-weight RTOS in the Scheduler module of the HAL. This HAL’s small size allows loading it on low cost STM32F405 based flight controllers, such as the OpenPilot Revolution (and Revolution Mini), Airbot F4, Omnibus F4 and many oth…