Spirit Pro + Radiomaster EP3-H Receiver + Interface
Posted: Thu 16. Apr 2026 6:37:30
Hi everyone,
I'm currently upgrading a scale heli with a Spirit Pro unit to ELRS using a Radiomaster RP3-H receiver.
Everything is working correctly so far, but since I have to plug two of the receiver cables into the SYS port, I can't connect the Spirit interface there at the same time. I've already tried using a Y-cable, but that doesn't work. How can I solve this?
Currently, I can only use either the receiver or the interface/software. But I need both connected simultaneously for configuration.
I've already tried the wiring as described in the software, but the servos still don't move. The servos move when wired via SYS. For your information: I'm using ELRS 4.0.0.
Cheers, Holger
I'm currently upgrading a scale heli with a Spirit Pro unit to ELRS using a Radiomaster RP3-H receiver.
Everything is working correctly so far, but since I have to plug two of the receiver cables into the SYS port, I can't connect the Spirit interface there at the same time. I've already tried using a Y-cable, but that doesn't work. How can I solve this?
Currently, I can only use either the receiver or the interface/software. But I need both connected simultaneously for configuration.
I've already tried the wiring as described in the software, but the servos still don't move. The servos move when wired via SYS. For your information: I'm using ELRS 4.0.0.
Cheers, Holger