Hi.
I have a Hawkeye 4K Thumb camera attached to a Holybro Kakute H7 mini v1.3 FC as this:
The board is documented here, being CAM documented as:
CAM: to camera OSD control
The hwdef.dat of this board is here, which includes this other which describes most of the signals (except CAM) and components:
https://github.com/ArduPilot/ardupilot/tree/master/libraries/AP_HAL_ChibiOS/hwdef/KakuteH7Mini/hwdef.dat.
I only want to do a very simple thing (not camera OSD control): have CAM signal normally high, and set it low with a momentary switch at the transmitter (using CH10), to start/stop video recording. If trying this to activate the buzzer (documented above at pin 80):
# buzzer
PC13 BUZZER OUTPUT LOW PULLDOWN GPIO(80)
define HAL_BUZZER_PIN 80
I can turn on the buzzer from the transmitter with a momentary switch assigned to channel 10 through RELAY1 as 80:
RELAY1_DEFAULT, 0
RELAY1_FUNCTION, 1
RELAY1_PIN, 80
RC10_OPTION, 28
SERVO10_FUNCTION, -1
but CAM signal seems ignored, or I cannot find its definition. What can I do to use CAM signal?