Much as I wanted to like this stack, I'm finding it troublesome. I have two, both behave the same, so it's unlikely that I just have a bad example. You can work around the weak 5V regulator with a stand-alone BEC to supply the camera and vtx, but the ESCs also appear to be problematical. They are fussy about which motors they will drive at all - I have a 1106 motor that neither board will run, but that flies fine with other FCs, including AIO 5A boards. Other motors I have tried fly fine for 15 to 20s and then the quad loses power and sinks to the ground. I suspect thermal shutdown on the ESCs. This happens with motors which should be drawing well under the rated current when flown gently at hover on 2s. Maybe it will fly with some low kv 080x motors, but overall the board seems extremely limited. I'd recommend avoiding this one.
2019-08-08
J****s
This seems like a great stack for a small build, it has more IO than most similar boards and the ESC seems decent. However, watch out for the limited output power of the 5V BEC. I'm having trouble finding a VTX/camera and RX combination that I can use with this board. The 5V sags to around 3V or less after a few seconds, presumably when it enters thermal shutdown. I'm looking at adding an additional 5V regulator, but that's a messy solution to the problem.
F28040
Much as I wanted to like this stack, I'm finding it troublesome. I have two, both behave the same, so it's unlikely that I just have a bad example. You can work around the weak 5V regulator with a stand-alone BEC to supply the camera and vtx, but the ESCs also appear to be problematical. They are fussy about which motors they will drive at all - I have a 1106 motor that neither board will run, but that flies fine with other FCs, including AIO 5A boards. Other motors I have tried fly fine for 15 to 20s and then the quad loses power and sinks to the ground. I suspect thermal shutdown on the ESCs. This happens with motors which should be drawing well under the rated current when flown gently at hover on 2s. Maybe it will fly with some low kv 080x motors, but overall the board seems extremely limited. I'd recommend avoiding this one.