betaflight / betaflight

Open Source Flight Controller Firmware
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ExpressLRS reciver did not work (checkt cables, bind work) #12879

Closed druckgott closed 1 year ago

druckgott commented 1 year ago

Describe the bug

I have a 7 Zoll drone and used a Radiomaster RP3 Express LRS Reciver with a Mamba F405 MK2 Board and all worked. Now I changed the Board to a SPEEDYBEEF7V3 connected all togeter and flashed the firmware. But the Receiver did not get any signal. I checked wirering several Times. TX is on RX and RX on TX, 4.5V on Reciver and GND on GND. I checkt the Config in Betaflight also several times its CRSF selected an UART2.

grafik

It´s IMG_20230609_154040_resized_20230609_034208971s connected her: IMG_20230609_154038_resized_20230609_034225687

I really don´t understand why it´s not working.

To Reproduce

Use the SPEEDYBEEF7V3 with Radiomaster RP3 Express LRS Reciver

Expected behavior

Get Signal because of right connection

Support ID

0x2c001e3232510638393431

Flight controller

SPEEDYBEEF7V3

Other components

Radiomaster RP3 with Exrpress LRS (already worked on the old board) GPS, O3

How are the different components wired up (including port information)

No response

Add any other context about the problem that you think might be relevant here

No response

druckgott commented 1 year ago

Ok I solved it, the O3 was the problem I have to remove the 2 calbes: https://www.youtube.com/watch?v=-Kb-IeWWKOY