Hi !!
I am a teacher and I am new to the field of drones. I am currently in a project with students.
The equipment we have:
pixhawk 6x + Radiomaster Boxer + ELRS RP3 V2.
I paired the radio with the ELRS RP3 receiver (The red light is fixed)
The receiver is plugged into the RC IN pins of the pixhawk controller.
Qground controller is installed and I connected to pixhawk…but the radio does not connect to pixhawk…
How to do ? Thank you for any help that would help me in advance
Hi! Thank you for your answer. There is no uart port to plug in the elrs rp3 receiver. According to the pixhawk 6x documentation, you must connect to the SBU/PPM receiver port: RC IN …
Your receiver have 4 pads… R is RX- T is TX - 5v is Voltage - G is Ground.
The RCIN pin its a timer input, CRSF/ELRS and SRXL2 require a true UART connection, so you need also change few parameters about your serial but i need investigate if elrs it’s supported by PX4
How about signal levels / voltages?
The signal pins of the flight controller’s UARTs are all rated at 3V3 but the ELRS receiver has a working voltage of 5V.
I’m afraid to fry the expensive flight controller.
The 5v pin on the receiver its considered as an input pin so you don’t need be worried about damage your fc coz the receiver will receive power from the serial connector located on your FC.
Many advanced FC have a power IC protected by reverse voltage and over current protection.
Don’t confuse the 5V PIN with tx/rx volgate coz it’s considered signal