Hi everyone,
I’m having an issue with my ELRS setup and would really appreciate some advice. Here’s a rundown of my setup:
- Radio Transmitter: Radiomaster Pocket with the Ranger Nano ELRS module
- Receiver: ELRS RP1
- Flight Controller (FC): Matek H743 Slim
- Software: Mission Planner
Connection Details:
- I’ve connected the ELRS RP1 receiver to my FC using the UART6 port (pins RX6 and TX6).
- ELRS receiver wiring: 5V, GND, TX, RX connected to the respective pins on the FC.
Issue:
Despite following guides, I’m not seeing any RC data in Mission Planner. When I go to the “Radio Calibration” section, there’s no response from the transmitter when I move the sticks.
Here’s what I’ve done to troubleshoot so far:
-
UART Configuration on Mission Planner:
- I went to Config > Full Parameter List in Mission Planner and made sure the settings were correct for UART6.
- Set
SERIAL6_PROTOCOLto23to enable CRSF (Crossfire) protocol, as required by ELRS.
-
Crossfire (CRSF) Protocol Setup:
- Verified that both my Radiomaster Pocket and Ranger Nano module are set to use the CRSF protocol. ELRS uses CRSF as its communication protocol, so this should be the correct setting.
- Also confirmed that my Ranger Nano module and ELRS RP1 receiver are bound properly. They show a successful bind according to the LEDs.
-
Wiring and Power Check:
- Double-checked the wiring between the ELRS RP1 receiver and the flight controller. I confirmed that:
- RX on the receiver goes to TX6 on the FC.
- TX on the receiver goes to RX6 on the FC.
- The receiver has a solid LED, indicating it’s powered and bound to the transmitter.
- Double-checked the wiring between the ELRS RP1 receiver and the flight controller. I confirmed that:
-
Firmware Compatibility:
- Ensured both the Ranger Nano module and ELRS RP1 receiver are using firmware versions that are compatible with each other. I’ve read that sometimes mismatched firmware versions can prevent RC data from being transmitted properly.
-
Testing for RC Data:
- In Mission Planner’s Radio Calibration tab, I’m not seeing any response from my sticks. There’s no indication that RC data is being received.
Additional Notes:
- I’m running the latest stable firmware on my Matek H743 Slim and Mission Planner software.
- I’ve verified the ELRS receiver setup on my Radiomaster Pocket and have tried rebinding just in case.
Questions:
- Am I missing any steps in configuring the CRSF protocol with ELRS and Mission Planner?
- Are there any additional parameters I should set for the Matek H743 Slim to ensure RC data over CRSF?
- Any advice on other troubleshooting steps would be appreciated.
Thanks in advance for any guidance!
