#Almost there - HGLRC Hermes 2.4 RX + GEP-F405-HD V2 + RadioMaster Pocket

100 messages · Page 1 of 1 (latest)

carmine token
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So, I just updated my new RadioMaster Pocket to ELRS 3.3.2 and my new HGLRC Hermes 2.4 RX-T to ELRS 3.3.2 successfully.

I configured the receiver mode to Serial (via UART) and CRSF as Serial Receiver Provider in Betaflight on my GEP-F405-HD and the transmitter is binded to the receiver, led is stable and everything seems ok but sticks aren't reactive. I mean, I don't see anything in Betaflight when I use the throttle, what I'm doing wrong?

On the RadioMaster Pocket, model is set like this:
Internal RF is set to CRSF 5.25M, 250Hz, CH1-16, Receiver 00
External RF is off

HGLRC Hermes 2.4 RX is connected to SBUS on the GEP-F405-HD
https://geprc.com/wp-content/uploads/2021/06/GEP-F405-HD-Manual-EN-V1_0-.pdf

I'm switching from FlySky FS-X6B to ELRS and I'm very excited, but I'm missing something

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the manual says to set SBUS but since I'm using ELRS I set CRSF

misty thunder
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Show a clear photo of your wiring

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And what VTX? If DJI, is the SBUS wire connected?

carmine token
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it's a GePRC Mark 4 and I replaced the old FC with built-in VTX

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now I'm using this GEP-F405-HD V2 and still not have a VTX/camera

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I'd like to use it in LOS, maybe I'll mount an O3 in the future

misty thunder
carmine token
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are you sure? TX is the white one and is marked as T on both

misty thunder
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Which is wrong

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TX to RX, and RX to TX

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TX talks, RX listens

carmine token
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oh, it makes sense

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now seems wired correctly

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but still ded here

misty thunder
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Show your ports tab in Betaflight

carmine token
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just switched Hermes RX Protocol from SBUS to CRSF but nothing changes

carmine token
misty thunder
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Your receiver is corrected to uart 5

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Check SerialRX next to UART 5, and uncheck next to UART 6

carmine token
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ok, done.

I had to enable Telemetry output again but still not working

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it's set CRSF everywhere (betaflight, radiomaster tx and hermes rx)

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channel map AETR1234

misty thunder
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Show new screenshots of your ports and receiver tabs, and the receivers !webui

twilit deltaBOT
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Connect to your transmitter's or receiver's WiFi network to access the web UI:

carmine token
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heheee, it was the passphrase.

I thought the telemetry wouldn't even connect if they weren't the same.

I just changed them from the wifi panel and now it works
(dunno why I had to do this since I set the passphrase on both tx and rx before flashing).

Thanks a lot @misty thunder

misty thunder
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Telemetry would not connect if the binding phrases didn't match

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Glad you got it working though

carmine token
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Now I'll do the same on my other quads and maybe I'll be able to finally sell my old Turnigy Evolution 🤣

carmine token
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probably my fault

carmine token
misty thunder
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What UART did you connect the receiver to?

carmine token
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UART6, which I used previously with FlySky / SBUS

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wires are ok now

misty thunder
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Post a BF CLI dump and screenshots of the receiver's webui

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Do you have a manual for this FC?

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I don't think that plug is connected to a full UART. Solder the receiver to the pads on the right side

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It looks like you have the receiver TX and RX wired to SBUS and 3.3v, which is wrong

carmine token
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Thank you, I tried. Seems I messed up the receiver because it doesn't blimp anymore

carmine token
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Ok great, there was a crushed pin in the FC

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Now I soldered the Hermes receiver to UART6

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The receiver has a stable red led when battery is connected, but any light when USB is connected

misty thunder
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Show your wiring

carmine token
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not the best job, but they are soldered

misty thunder
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The receiver is wired to a 5v pad that is only powered by the battery

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So it will not power on via USB

carmine token
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Oh, so that's why

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Ok. But led is stable even if transmitter isn't on

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Maybe I fried it? I leave it connected for 1 minute without the antenna

misty thunder
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Are you sure there are no shorts in your wiring?

carmine token
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It doesn't blink intermittently after 1 minute to enable wifi

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There was but I fixed it

misty thunder
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Disconnect the TX and RX wires and see if it blinks

carmine token
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It blinks 😾

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Damn.

misty thunder
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Try T4/R4?

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Or just solder carefully

carmine token
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Ok, it works and I switched to UART4, enabled wifi to set the passphrase again just to be sure

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the transmitter says telemetry recovered

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dunno if I should use different models like with FlySky and Turnigy Evolution, because ELRS just relies on the passphrase (?), but probably yes

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anyway on the RadioMaster Pocket I switched to another model

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now I'll try to bind

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also dunno why it says telemetry recovered if not binded, led isn't stable

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Mmh. I enabled Model Match because it was saying Model Mismatch, now inputs are working except for Yaw

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It's probably some setting on the RadioMaster

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Yeah, it's not a delta but a drone. Awesome, it should work now

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I just a cloned the model I configured previously and rebinded because I didn't remember how to enter that menu (drone/delta/heli)

carmine token
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So happy, now I have two ELRS drones. I'll try em in the next few days, thanks V-22

carmine token
# misty thunder Your receiver is corrected to uart 5

Hi V-22,

I'm configuring DJI O3 on this GEPRC F405-HD and ELRS works on UART 5 with Serial RX is turned on, but the manual says to enable MSP on UART 5 too to make O3 fully operative.

Am i missing something? I can't set both Serial RX and MSP on same UART

misty thunder
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Show photos of your wiring

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You cannot have your receiver and VTX connected to the same UART

carmine token
misty thunder
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The SBUS wire should not be connected to the O3

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Take a better picture of the FC. What are the labels where you have the receiver and VTX plugged in?

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Those tell you what UART they are

carmine token
misty thunder
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So your VTX is on UART 1 and your receiver is on UART 5

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And you are looking at the wiring guide for a different FC

carmine token
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Damn that's the GEPRC F405-V1 manual and I have V2

carmine token
misty thunder
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Just !depin the wire from the connector

twilit deltaBOT
misty thunder
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You can also remove the signal ground next to it