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RX7 to uSpirit

Posted: Sun 08. Jun 2025 20:28:42
by mikejk67
I bought another RX7 to use my Wave Transmitter with a small heli that has a uSpirit on it. I was using a Futaba transmitter and used Sbus to the gyro. Worked fine. When I tried to use the Wave Radio to the RX7 to the uSpirit, it did not recognize the uSpirit in the Wave tx. All units are updated to the latest firmware. I did use the computer to put the uSpirit to use RX7 as the input. The RX7 was set to correct settings for single line output. The Wave Tx states I need to attach a Spirit Unit. I've done 2 other setups of RX7 to Spirit GT's that work fine with the Wave tx. Any possible way to correct this situation?

Re: RX7 to uSpirit

Posted: Mon 09. Jun 2025 21:35:59
by ZeXx86
Hello,

the problem could be only wiring.
I think the issue is that uSpirit require same connection as Spirit 2.
This is AIL signal pin + powering wires.

What is your current wiring?

Re: RX7 to uSpirit

Posted: Tue 10. Jun 2025 15:08:03
by mikejk67
RX7 port 2 is wired to uSpirit port RUD as I've done with the Spirit GT units. This works fine with a Futaba Sbus, but not with RX7.

Update: I've used two jst connectors to 1) power the unit in the RUD port, 2) Single wire to Aileron pin on P/E/A port. Works now with Wave Radio. However, that information is not clear on the Instrustions that are online, as far I could see.
Thanks for your help.
Mike

Re: RX7 to uSpirit

Posted: Tue 10. Jun 2025 16:39:40
by Habásek
in the uSpirit unit set as Spirit RX receiver and on the RX7 receiver output set on pin 2 Spirit RX protocol
https://manual.spirit-system.com/index. ... _RX_Wiring