Hey all, I have Copter running on an Omnibus F4 V3 board. Its a bit outdated but that’s fine with me. I’m gonna use IBus telemetry, GPS and SmartAudio. I have my IBus input on the RCIN pin (the jumper is set to PPM), and I want to use my GPS on the UART6 pins. It works fine, however my IBus signals wont come if my GPS is connected and they start coming as soon as I remove the GPS serial wires from the board… So I had to move my GPS to UART1 and then the IBus signals came again. I have 2 more peripherals i have to connect (telemetry and SmartAudio), so I really wanna use the UART6 for GPS. It wont work for the IBus telem as well. I have set the BRD_ALT_CONFIG to 3 to get the RSSI and PWM5 UART which I can use for my telemetry, but I need just ONE extra UART.. Also one more thing I can’t use the UART3 cos it shares pins with the I2C line which I have used for my compass. The thing is I have seen many people use this configuration of GPS on UART6 and their RCIN works fine. I have thought about using software serial for the SA cos its not that high priority, but I couldnt find any info on this. Is this happening cos my board is a clone or is that normal?? Any help is greatly appreciated.