Cube Orange UART Inversion & Half Duplex Problems

[xfacta (Shawn)]

For CUAV V5 Nano I used a 2k pulldown and SERIALx_OPTIONS,7

An Open Source Frsky Telemetry Script for the Horus X10,X12 and Taranis X9D,X9E and QX7 radios

Long time reader - First time Frsky Telemetry user. Flight Controller CUAV V5 Nano, planning on using the “UART4” port as follows: SERIAL4_PROTOCOL,10 SERIAL4_OPTIONS,7 I dont get the PullUp/PullDown/NoDMA options listed but I do get the InvertTX/InvertRX/Swap options. I had to set the options as listed above before telemetry worked, combined with the cable as listed below. Reboot the FC after changing any of these. Cable Minimalist cable, only the Tx wire and ground wire to the S-Port …