Does anyone know how to use the E90 camera with a Pixhawk6C?

[Tryingtolearndronesforjob]

Hey so does anyone know how to use the Yuneec E90 camera's circuit board the CGO3+ in order to get video out of it as a proof of concept, and maybe even control it. I'm a novice, just trynna learn how it works. Ideally, me and the team would love to connect this camera with a Pixhawk6C flight controller, and attach it to one of our drones, since it has great picture quality capture. Any help would be much appreciated, thanks!

 

[h-elsner]

The connector of the E90 camera is the same as many other (like CGO3+). It uses 4 of the contacts:
- Ground (-), Vbat (+) from the flight battery 3S or 4S
- and a serial connection between flight controller and camera mRx is the input of the flight controlle (Tx of the camera) and mTx/PWM is the output of the flight controller (Rx of the camera). Signal level is 3.3V. The E90 has no fallback to PWM for tilt (the CGO3+ has). That means the pan, pan mode, tilt and tilt mode are controlled by Yuneec specific messages over the serial connection.
The Yuneec message is known so far - look at this project: GitHub - h-elsner/E90controlDemo: Control a C23/E90 camera to use for other purposes
All known Yuneec messages are described here:

H480_UART_reading/docs at main · h-elsner/H480_UART_reading

Reverse engineering serial connections at Yuneec Typhoon H - h-elsner/H480_UART_reading

github.com

Camera settings, start/stop video, take photo and video downlink are working over 5GHz WiFi connection. As far as I know there is no 3rd party app that can do this. I guess the MAVlink messages for that are Yuneec specific but you can try QGroundControl to access to the camera. The camera itself creates a WiFi hotspot with DHCP server and can be accessed when you login in this WiFi network.

To use the E90 with Pixhawk flight controller I think will need some additional development in PX4 Autopilot. I never tried this.