Flight Controller Passthrough (Beta)

This feature is only available in the 3.1.1-microdrive_lpi-fc_passthrough beta version. This feature is in beta, you may encounter bugs or instability and there is no guarantee of ongoing support for this implementation of passthrough

The ESC supports configuration using the Hargrave Configurator over the serial signal lines through flight controller passthrough (FC passthrough). A compatible flight controller and version of the Hargrave Configurator are required. More details can be found below:

Changelog

This beta version is based on the 3.1.0 release.

3.1.1-fc_passthrough - 12th January 2026

Build Hash: 2fbb9c77

Major Changes

3.1.1-fc_passthrough is a beta release supporting flight controller passthrough (FC passthrough) for more convenient configurator for vehicles using serial communications. This release does not have ARINC 825 support. FC passthrough is in beta, bugs or instability may be encountered, continued support for this implementation of FC passthrough is not guaranteed.

New Features

Flight Controller Passthrough - Flight controller passthrough allows the Hargrave Configurator to communicate with the motor controller using the serial (PWM/DShot) wires.

Other Changes

Serial signal detection code updated to detect passthrough.

Bug Fixes

Serial signal handling code is more noise resilient.

* FC Passthrough Requires Hargrave Configurator >=v1.12.0