Two of my customers have trouble setting up the Pixhawk - I myself have a Pixhawk, but don't use a Futaba receiver, thereby I can't replicate the problem (I would like to find out if the problem is connected to the receiver they use, or something else).
Both use a Futaba R7008SB receiver.
Both managed to upload the Firmware to their Pixhawks - but they are not able to do the radio calibration (the Pixhawk doesn't "see" the receivers, the bars in the calibration are all grey).
They have nothing else connected to the Pixhawk, except receiver (connected to the right port / RC), buzzer, safety switch and USB cable.
The Pixhawk signals via the big LED "pre-arm check failed" (which makes sense ;)
They power the Pixhawk via USB and at the same time with a LiPo (via the Power Module).
The receiver is "found" by the remote, the LEDs are on, the setting of receiver and remote (regarding the use of the SBUS) seems to be right. They use the right port of the receiver to connect to the Pixhawk.
I am happy about any suggestions ...
Thanks a lot in advance
Please have a look at my circuit. I am using an ESC to supply my servo output rail and it is getting power. But as mentioned before, the signal out from pixhawk is the culprit!And also the RC calibration figures are around 1100 ....1900. Will it be an issue with the firmware I am using? Or do I need to have a PPM encoder in between? Please help me... I am using Futaba 14sg as my transmitter...I have already checked the servo by directly connecting to the receiver and its working fine....
As suggested I have already placed an order for the PPM encoder, I think it may take a while for me to get it..I have ordered the one from 3dr stores, hope it will work.. Will update you once I get it
Thanks for your help,
Hello, I just became a new member and have exactly the same problem here. I went from a perfectly well running system (DJI Naza V2) to a lot of frustration. I have Futaba R700SB-14SG combi. I have it connected to the RC port of Pixhawk and tried 2 modes on receiver (A and B) and S.Bus-SBus2 combination. I managed to get connection with the Beta software: V3.3-dev and see some "green bars".
I wonder if I need to purchase a PPM encoder or wait for a working stable version. I see so many developers versions and lost track of a version that is actually suitable for Futaba R7000SB.
"Pixhawk is a PPM-input autopilot, which means that it gets RC input from a single cable to the receiver, either via the PPM port, the Futaba S.BUS port, or the special satellite receiver port for Spektrum gear"
"Most modern RC receivers (and all those sold by 3D Robotics) allow for PPM output, but some, such as non-S.BUS Futaba receivers, do not."
So why I need a PPM encoder when on 3DR site I read Pixhawk support S.BUS?
I cant use my Pixhawk (I orderd 1 years ago) and still wait for S.BUS supported firmware version.
I tried RC versions but I have a near flyaway so wait stable.
I paid 530$ for Pixhawk with shipping, fees and customs. And now I can sell about 150$.
Thanks for your suggestion Martin. I will order one. I haven't figure out yet how I should program the different flight modes and other useful settings. Is there someone with good suggestions?