I’m doing a first time set up for my 3DR Quad using an APM 2.6. I’ve managed to install the Mission Planner software and the device drivers for the APM. I’ve set the baud rate to 115200 on both the Com port and in MP and selected the correct Com port in the MP dropdown menu (the MP dropdown doesn’t show the APM - only the port number?)
When trying to install the arducopter firmware, it goes through the process of connecting with the APM and then starts downloading the Hex file. I then get a “failed upload” prompt with an error message “Communication Error - no connection”.
I’ve noticed mention of insufficient USB voltage to power the APM in previous posts. I’ve measured the voltage across my APM power rails at 4.98V. Is this sufficient for the APM 2.6 or do I need to get a powered hub to up the voltage? Could this be causing the problem I’m having?
Also, what is the correct voltage required for the APM to perform as it should?