Greetings!
We are happy to work with you and solve the problems of your project.
We have experience working on projects of control systems for unmanned vehicles (C / C ++, STM / Infineon, NXP, Atmel), on-board transport control systems, СAN buses and signal processing.
I understand ARM Cortex M4 (STM32F427 - Pixhawk 1)
Interfaces - UART, CAN, I2C, SPI and other
we released software for on PX4 and ArduPilot in the project "VORON Russia" in 2018
I understand Pixracer.
We provided MAVSDK (and MAVLink Library with APIs for C++).
Please provide a brief technical description of the project.