MultiWii

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Make sure you are not still connected in Arduino when you try to connect to your GUI. This situation will prevent hooking up in the GUI.

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The pin outs that are on the board and the code in config.h are there for a servo driven gimbal. Could you use the motor outs of a Multiwii board to drive a brushless gimbal as a gimbal controller? Hmmmm. Good question. I'm not real sure but I think that would require an ESC for both Roll and pitch ...

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Sorry Quadbow, my fault, I totally missed the sarcasm.

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The correct board to pick in tools is "Arduino Mega 2560 or mega ADK". I personally used the board in question and your Alt. Hold function will only be good to within about 5 or 6 feet either way (+/- 6') and the MTK GPS is not really good for much. In your Arduino there are two places to ...

In your Arduino did you make sure that under the tools menu, you have the correct board selected? I've been trying to find what board yours is for sure on the list with no luck. It is one of the ones with 328 in the description. This board needs to be selected in the tools menu to be seen.

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I believe that the gyro should auto calibrate upon each FC start. Am I correct on this? Should that not also reset baro to zero? Is it really necessary to manually calibrate again right after starting the FC? I have noticed that over time while sitting waiting for a satellite fix sometimes the baro ...

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I use D8 and D12 Thank you for getting the HC-SR04 working! I think I'm being a bit thick today, plus this is my first arduino project so I'm still learning. My question is, what pins are you using off the HC-SR04? I see a Vcc, Trig, Echo, and GND. How do those correspond to pins D8 and D12 on the ...

Just a wild guess here....Did you center up everything on your TX? Endpoints? Subtrims? It needs to be done on the throttle/yaw and the pitch/roll. This is usually the cause of what you are describing with the rising or falling with just a hairs adjustment. You need to set your endpoints and subtrim...

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Get a Bluetooth unit and you can adjust all your servo settings on your android phone. It's really sweet.