ARK FPV

[dakejahl]

Adds support for the ARK FPV
https://arkelectron.com/product/ark-fpv-flight-controller/

Depends on
betaflight/betaflight#14153
betaflight/betaflight#14145

Issue
I tried both ESC_SENSOR_UART and ESCSERIAL_PIN for ESC telemetry. The first case resulted with the board hanging after enabling "ESC Sensor" in Configurator. It can no longer boot past init and needs to be reflashed. The second case resulted in "ESC Sensor" not persisting after selecting using Configurator. I don't even know if it's recommended to use ESC Telemetry if the ESC has Bidirectional DSHOT, but we don't know if all users will have an ESC capable of bidir dshot.

Testing

• RC input
• VTX 12V Pit switch
• Bidir DSHOT
• Acc/Gyro and Mag orientations correct
• Batt Volt/Curr analog correct readings
• OSD
• VTX
• SD logging
• Flight test

More testing suggestions? Every interface has been validated on both PX4 and Ardupilot board ports.

[dakejahl]

Did a quick flight, crashed very shortly after taking off because I suck at angle mode and it was pulling hard to the right. Also throttle is very sensitive. Anyway it does work!

[haslinghuis]

I tried both ESC_SENSOR_UART and ESCSERIAL_PIN for ESC telemetry. The first case resulted with the board hanging after enabling "ESC Sensor" in Configurator. It can no longer boot past init and needs to be reflashed. The second case resulted in "ESC Sensor" not persisting after selecting using Configurator. I don't even know if it's recommended to use ESC Telemetry if the ESC has Bidirectional DSHOT, but we don't know if all users will have an ESC capable of bidir dshot.

Don't think it is intended to use both settings at the same time. Perhaps we can improve this in configurator but also prefer to add this restriction in firmware if required.