# Intrusive Robotics Delta > Firmware documentation for the Intrusive Robotics Delta, a compact high-power GaN motor controller compatible with VESC software. - [imu](https://docs.intrusiverobotics.com/reference/sensing/imu.md) - [changelog](https://docs.intrusiverobotics.com/releases/changelog.md) ## Optional - [Products](https://docs.intrusiverobotics.com/products) - [GitHub](https://github.com/IntrusiveRobotics/Delta) - [Latest release](https://github.com/IntrusiveRobotics/Delta/releases/latest) - [Upstream VESC project](https://github.com/vedderb/bldc)