Setup and maiden flight

Post date: Oct 06, 2015 8:39:52 AM

Setup:

First problem my DJI 2.4 Ghz receiver board is not compatible with my DJI Phantom V1.2 stock RC transmitter. It work perfectly with my Phantom 2 stock controller. I contact my dealer who seem to be surprised by that and told me that he will try to find a compatible receiver (already more than a month ago and still no news....).

So i have bond my phantom2 TX withe the receiver. I wont be able to fly the 2 quad together......

For the setup i have downloaded the Naza lite assistant software V1.0 from the dji website at the following:http://www.dji.com/product/naza-m-lite/download

Once the transmitter bond to the receiver and the USB cable connected to the VU/LED, i have just run the assistant software to check if the TX/RX were properly bond and check all the default parameter you can find in the assistant software.

Then i disconnect the usb cable and armed the motors (without pro on of course) to check the rotation direction of each motors.

the rotation direction must be setup according to the following:

M1 Counter Clockwise
M2 Clockwise
M3 Counter clockwise
M4 Clockwise

During the assembly i have connected the 3 motor cables to the ESC cable with temporary chocolate bar connector. I can now check what rotation the motor have and modify the cabling accordingly. For each motor only 2 of the 3 cables have to switched to change the rotation direction. Once properly sorted, i make a final solder protected with heat shrink tube for each of the cables. I double triple checked the solder before heating the heat shrink tube. each ESC is using around 4A.

GPS setup and position:

According to Naza M Lite Assistant software you should enter the position of the GPS receiver to the Center of gravity of the craft.

The Dji convention put negative values for gps position above the CG ('green Z line) .

On my frame the GPS receiveris located with the following:

X=3cm
Y=3cm
Z=-7cm

The quad is now almost ready to flight. Before taking off i did the "compass Dance" calibration

Compass Calibration procedure

STEP1: Enter calibration mode: quickly slide the control mode switch from Position-1 to Position-3 for 6 to 10 times, and LED indicator will be constantly on in yellow.

STEP2: Calibration in horizontal: rotate you multi-rotor along with the horizontal surface until the green light is on constantly, then go to the next step;

STEP3: Calibration in vertical: while green light is constantly on, hold your multi-rotor vertically and rotate it along with its vertical axis, keep rotating until the green light is off, meaning the calibration is finished.

STEP4: After you finished the calibration, LED indicator will show whether the calibration was successful or not:

- Ifcalibration succeeds, calibration mode willauto exit;
- If red light keeps blinking quickly, the calibration has failed. Slide the control mode switch one time to cancel current calibration, and then re-start from step 1 for re-calibration.

Tips：If you keep having calibration failure, it might suggest that there is very strong magnetic interference around the GPS & Compass module, please avoid flying in this area.

The maiden flight:

Conclusion:

IT FLIES......Unbelievable...

Not even one flip at take off....

I was very doubtful that it could fly so nicely the first time. I was expecting some flip of the death or fly away but nothing like that happen. it just take off and fly....

I did the try behind my dive shop where the GPS coverage was not optimum and i never had full satellite reception during the flight.

I did try GPS mode, Attitude mode and Manual mode and i can control the quad on the 3 modes.

I'm not yet used to fly in manual mode and it look scary.