Get tutorials Aircraft Model SF250

Setting Parameters Manually

If the aircraft cannot be unlocked and controlled after you take the steps in Configuring the Radio Transmitter, you can set the parameters manually. Or just skip the settings wizards, and set them manually.

PWM Mode

Step 1: Ensure the receiver has been toggled to the PWM mode and connected correctly, and power on the aircraft and radio transmitter with a battery.

Step 2: Open Openpilot, click Input at left side, and then select PWM for all channels under Type, and set Chan 1-Chan 5 under Number correspondingly. ThrottleRollPitch, and Yaw are main channels, while FlightMode is an aux channel to set the flight mode. To realize basic flight needs, you only need to set these 5 channels. Then click Save.


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Step 3: Move the Throttle stick to check the channel value status on the Openpilot.

If the Pitch changes when you move the Throttle stick, just exchange the channel of Pitch and Throttle on the interface, then click Save. Now Throttle is Chan3, while Pitch is Chan1.


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Step 4: Move the Elevator stick.

If the Roll changes when you move the Pitch stick, similarly just exchange the two channels, then click Save. Now Roll is Chan1, while Pitch is Chan2.


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Step 5: Move the Aileron stick.

If the Roll channel value changes, no need to modify its channel. But if the Yaw changes when you move the Roll stick, just exchange the channel Chan4 and Chan5.

Step 6: Move the Rudder stick.

Then you may see Yaw channel value changes, no need to modify then. Otherwise swap the channel values with another channel.

Step 7: Since only CH2 to CH6 are connected of the receiver, you can set FlightMode to Chan5 first, and move all the aux channels to see which the slider is toggled. Then that one is Chan5. Note down the position of the aux channel to set the aircraft flight mode later.

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Save the setting.

Step 8: Check four motors’ Neutral values.

Click Output on the menu column at the left side. Neutral is the critical point of the motor to spin that you configured previously. So, we can know the highest critical point of the four motors is 1088.


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Step 9: Click Input, and set the MinNeutral and Max values for all channels .

Min: the minimum value of the channel.

Neutral: the threshold value of the channel. The Neutral for throttle should be set greater than that for four motors (1088), and about 50 greater than the Min value, in case the aircraft takes off when we just slightly pull the throttle; and it leaves enough throttle ascending space, which would be easier to operate for entry-level hobbyists. Set all others Neutral values to 1500 (median for Min and Max).

Max: the maximum value of the channel.


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Move the channel stick. If the channel value slider is toggled reversely, just tick Reversed. For instance, when you move the Pitch stick from bottom to top, if the channel value slider is toggled from right to left at the same time, it indicates it is reversed. Thus you should tick the box Reversed after Pitch. Then click Save after modifying.

PPM Mode

Step 1: Ensure the receiver has been toggled to the PPM mode and the receiver wiring has been connected correctly, power on the aircraft and radio transmitter with a battery.

Step 2: Open Openpilot, and click Input at left side, then select PPM for all channels under Type, and set Chan1 –Chan5 under Number correspondingly (ThrottleRollPitch, and Yaw are main channels, while FlightMode are aux channel to set the flight mode. To realize basic flight needs, we only need to set these 5 channels. Then click Save.


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Step 3: Move the Throttle channel stick to check the channel value status on the Openpilot.

If the Pitch changes when you move the Throttle channel stick, just exchange the channel of Pitch and Throttle, then click Save. Now Throttle is Chan3, while Pitch is Chan1.


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Step 4: Move the Elevator channel stick.

If the Roll changes when you move the Pitch channel stick, just exchange the channel of Roll and Pitch, then click Save. Now Roll is Chan1, while Pitch is Chan2.


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Step 5: Move the Aileron channel stick.

If the Roll channel value changes, no need to modify its channel. If the Yaw changes when you move the Roll stick, just exchange the channel Chan4 and Chan5.

Step 6: Move the Rudder channel stick.

Then you may see Yaw channel value changes, no need to modify then.

Step 7: Since we only connect from CH2 to CH6 in receiver wiring part, you can set FlightMode to Chan5, and move the aux channel to see whether the slider is toggled or not. If yes, the corresponding one is Chan5. Remember the aux channel for the aircraft flight mode setting.


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Save the setting.

Step 8: Check four motors’ threshold values.

Click Output on the menu column at the left side. Neutral is the critical point of the motor to spin that you configured previously. So, we can know the highest critical point of the four motors is 1089.


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Click Input, and set the MinNeutral and Max values for all channels.

Min: the minimum value of the channel.

Neutral: the threshold value of the channel. The Neutral for throttle should be set greater than that for four motors (1089), and about 50 greater than the Min value, in case the aircraft takes off when we just slightly pull the throttle; and it leaves enough throttle ascending space, which would be easier to operate for entry-level hobbyists. Set all others Neutral values to 1500 (median for Min and Max).

Max: the maximum value of the channel.


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Move the channel stick. If the channel value slider is toggled reversely, just tick Reversed. For instance, when you move the Pitch stick from bottom to top, if the channel value slider is toggled from right to left at the same time, it indicates it is reversed. Thus you should tick the box Reversed after Pitch. Then click Save after modifying.

 

SBUS Mode

Step 1: Ensure the receiver has been toggled to the SBUS mode and the receiver wiring has been connected correctly, power on the aircraft and radio transmitter with a battery.

Step 2: Open Openpilot, and click Input at left side, then select SBUS for all channels under Type, and set Chan1 –Chan5 under Number correspondingly (ThrottleRollPitch, and Yaw are main channel, while FlightMode are aux channel to set the flight mode. To realize basic flight needs, we only need to set these 5 channels. Then click Save.


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Step 3: Move the Throttle channel stick to check the channel value status on the Openpilot.

If the Pitch changes when you move the Throttle channel stick, just exchange the channel of Pitch and Throttle, then click Save. Now Throttle is Chan3, while Pitch is Chan1.


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Step 4: Move the Elevator channel stick.

If the Roll changes when you move the Pitch channel stick, just exchange the channel of Roll and Pitch, then click Save. Now Roll is Chan1, while Pitch is Chan2.


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Step 5: Move the Aileron channel stick.

If the Roll channel value changes, no need to modify its channel. If the Yaw changes when you move the Roll stick, just exchange the channel Chan4 and Chan5.

Step 6: Move the Rudder channel stick.

Then you may see Yaw channel value changes, no need to modify then.

Step 7: Since we only connect from CH2 to CH6 in receiver wiring part, you can set FlightMode to Chan5, and move the aux channel to see whether the slider is toggled or not. If yes, the corresponding one is Chan5. Remember the aux channel for the aircraft flight mode setting.


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Save the setting.

Step 8: Set the Min value of all channel to 200Max to 1800. Then the Neutral of Throttle to 400, others to 1000. Then click Save.

The Neutral value of Throttle is the threshold of motor to start spinning, thus we set it to 100~300 greater than the Min value to start the aircraft safely.


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Move the channel stick. If the channel value slider is toggled reversely, just tick Reversed. For instance, when you move the Pitch stick from bottom to top, if the channel value slider is toggled from right to left, it indicates it is reversed. Thus we should tick the box Reversed after Pitch. Then click Save after modifying.

Note: Usually, the Throttle, Roll, Pitch, and Yaw are Chan1-Chan4. Otherwise, you can exchange the channels based on the instruction.

Remember to click Save after each modifying.

 


Previous chapter: Calibrating the aircraft

Next chapter: Save the Settings

SunFounder
Oct 10 2017 at 03:43 am



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