Emax F3 Femto NO input signal (Flitetest I need your help!!!!)

[Bromego]

I recently got all my parts to build a micro quad and have everything built up but cannot send a signal to the board.

1x Emax Femto F3 Flight Controller+PDB Board
4x Emax Bullet 6A BLHeli_S ESC (1s-2S Support)
4x Emax RS1104 5250kv Brushless Motors
1x FrSky XM+

Flashed Betaflight under SPRACINGF3EVO. The XM+ is binded to the radio, and I have the XM+ on the UART3 port of the board, but when I click Serial Rx under UART3 and enable SBUS, I get no input from the radio. Radio is set to D16.

I swear I am doing everything correctly. Anyone else use the F3 Femto yet? what receiver you use? Is SPRACINGF3EVO the right protocol?

 

[Bromego]

SOLUTION:

Move the XM+ to UART2. Even though the manual says UART3 for SBUS, it has to be on UART2 to work.

 

[DarkSabre_X]

I've got an XM+ working on UART3 with SBUS. SPRACINGF3EVO is indeed the correct fw.

Were you connecting the battery? Mine wasn't working initially but I found out after much hand wringing that USB isn't enough to power the receiver.

The order I set everything up in also made a difference. I had to enable the serial rx and reboot then select the protocol and reboot again before I could verify the receiver was working.