Hi all. The Eachine EX4 is apparently a rebranded C-Fly Faith/JJRC X12. This uses the same C-Fly Android app as the JJRC X9/C-Fly Dream (loaded with ArduCopter parameters). The JJRC X12/EX4 is apparently very similar to the Dream/X9 but with a 3axis gimbal and longer battery life.
I’ve been asked if there’s a way to connect Mission Planner/QGroundControl to alter parameters, etc. on this unit. However, this unit does not have an easily accessible standard USB port. It does have a four pin connector hidden under the label in the battery compartment, a very tiny Molex. Even with the matching male connector it’s very difficult to work with given the extremely small size of the pins, and cannot be accessed with the battery in place.
Supposedly (based on discussions I’ve seen elsewhere) it is a USB port. And preliminary tests (difficult again due to the small size of the connector) suggest that it indeed may be a USB port given the interpin values measured. However, even if the connector was easier to deal with, I wouldn’t want to risk hooking up USB and blowing it out unless I was 100% sure it’s a USB port. It may be easier to access internally, but the unit hasn’t been disassembled at this time.
Since the Wi-Fi interface on the unit is not using encryption (!) it is possible to connect directly to the Wi-Fi AP on the unit and nmap it, but it may be using nonstandard MAVLink functions. I don’t know if Mission Planner access or other ways to change parameters are practical through this route. The unit seems to routinely power itself down after some number of minutes sitting idle.
Anyway, the bottom line is that any suggestions on how to alter the unit’s parameters and/or ideally connect to Mission Planner, etc. would be greatly appreciated. If I absolutely have to disassemble it I’m sure the owner will permit it, but I’d prefer to avoid this if possible. Thanks very much!