Coptercentre CS-1 gimbal for Mobius ActionCam manual

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Introduction

Thank you for purchasing the copteRCentre CS-1 gimbal for Mobius ActionCam.
This manual provides support for RTF and ARF (assembly required) versions of the CopterCentre CS-1 gimbal.
Please note that while the steps described in this guide may work for other gimbals, too, you should not attempt to use it for any other gimbal as it may damage it.
The guide has two main parts.
Part 1 is dealing with the calibration of the gimbal and is only relevant for you if you want to change the gimbal settings (for advanced users only) or have to change/reset settings due to a balancing issue.
Part 2 explains how to install the gimbal; please read through this part and follow the steps.
 Installing the gimbal in any other way than described in this guide can cause malfunctioning, may damage the gimbal and will void its warranty.

IMPORTANT:
Only use 3-cell (11.1V) Li-Po batteries to power the gimbal. Other batteries will damage the gimbal controller.
Don't try using the gimbal without the camera attached to it as it will not work correctly.
Every time when powering up the gimbal, please make sure that the sensor at the bottom of the camera holder is in a stable horizontal position without any external movement (e.g. pushing, shaking, even holding by hand) until it has fully initialized itself (5-10 seconds). Failing to adhere to these basic rules will result in a malfunctioning gimbal.

Part 1 - Configuring your gimbal

The basic setup and calibration are made by the copteRCentre team before shipping so you can use the gimbal out of the box.
Unless you notice any calibration issues or want to change the pre-set parameters (e.g. change motor power, or PID settings) you won't have to do any calibration  and can skip the next sections.
The gimbal uses the well-known mini Alexmos controller with 2.40b7 firmware preloaded. In order to change the gimbal settings you will need to use the setup GUI (PC software).  This guide will provide you 2 config files for the different sensor orientations:
  • for back mounting (in case you want to use with stock Mobius bracket and provided fixing screw)
  • for side mounting (in case you want to fix Mobius with double sided tape)

Installing the setup program

1. Go to (after removing spaces):
www. basecamelectronics. com /downloads/8bit/                           
2. Download SimpleBGC_GUI_2_40b7.zip
3. If Windows cannot find the gimbal driver, download it from:
www . silabs . com /products/mcu/pages/usbtouartbridgevcpdrivers.aspx
Note: DO NOT try to upgrade the firmware of the controller board using this program as it may damage your controller.

Loading the correct profile

  1. Go to SimpleBGC GUI folder after you unzipped it (before you launch the GUI)
  2. Download the config files from (change "_" to dot in the links before "com")
rcgroups_com/forums/showatt.php?attachmentid=7494706&d=1421934395
rcgroups_com/forums/showatt.php?attachmentid=7494707&d=1421934410

3.  Copy them into the Profiles folder
4. Rename the file extension from .txt to .profile (e.g. sensback.txt to sensback.profile)
5.  Connect the PC to the board by micro USB cable (battery should be disconnected during  the calibration process). Launch SimpleBGC.exe, choose the appropriate COM port in the drop-down list and click Connect.
6. Go to profile section on Basic tab and click on Load... Select all files to see new config file types and select the required profile file based on your sensor mount. Choose:
Fig. 1. - Back mounting
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Fig. 1. - Back mounting

Back mounted sensor

Select sensback.profile if your sensor is mounted to the back of the camera mounting plate



 
Fig. 2. - Side mounting
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Fig. 2. - Side mounting

Side mounted sensor

Choose sensside.profile if your sensor is mounted to the side of the camera mounting plate.




7.  When selected, click the WRITE button to save your settings. You may need to disconnect and connect again as described in Step 5.
8.  To re-calibrate Accelero and Gyro sensors, follow the steps of the next chapter
Fig. 3. - GUI Basic tab (Note: the PID values are examples here, the correct values are stored in the setup files)
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Fig. 3. - GUI Basic tab (Note: the PID values are examples here, the correct values are stored in the setup files)

Calibrating the sensor

Note: Always keep the camera holder plate with the sensor on leveled surface during the calibration process.

1. Click CALIB. ACC first, hold the gimbal perfectly leveled horizontally  and wait till the green led stops flashing on the board (4-5 seconds).
2.After this click on CALIB.GYRO, hold the gimbal steady and wait until the leds stop flashing.
3. In case you want to use the gimbal in special conditions at low temperature or fast flying with high speed yaw turns it is recommended to set Gyro thrust parameter higher than 100 on the Advanced tab (in AHRS section).
 
Fig. 4. - Custom gyro trust setting
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Fig. 4. - Custom gyro trust setting

High Gyro trust value sometimes helps to keep the 0 angle of roll axis in quick yaw rotations. If the Gyro trust is not set correctly, horizon drift can occur. This usually happens when the calibration doesn't match the current temperature. If you are mostly going to do slow yaw rotations you might get better results using lower Gyro trust. 
Fig. 5. - RC input mapping and RC control
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Fig. 5. - RC input mapping and RC control

Setting up pitch control

Go to RC settings TAB (Fig. 5.) and change Pitch control minimum and maximum angle to -90 and + 90 degrees.
 Enable the gimbal control in the assistant PC program of the Naza on the Gimbal tab. You can adjust pitch control between -1000 and 1000. It is recommended to set automatic gain control to 0 or 1.0 for pitch.
Fig. 6. - RC PITCH control signal check
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Fig. 6. - RC PITCH control signal check

You can check the PWM control signal on Real time data Tab as you move your control potentiometer on your RC radio. (Fig. 6.).
3. Press WRITE button, disconnect the gimbal from the PC and power up the gimbal.

Saving your changes

Press WRITE button and disconnect the gimbal from the PC.

Part 2 - Installing the gimbal

The following sections will explain how to install your gimbal, in particular:
  • Setting up the tilt function (optional, only if required)
  • Mounting your camera
  • Attaching the gimbal to your copter
  • Powering up your gimbal
Please make sure you follow these steps  as otherwise you may void warranty.
Fig. 7. - RC pitch control port
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Fig. 7. - RC pitch control port

Setting up tilt function for pitch control

Connect only the GND  and Signal pins of your free receiver channel (or in F2 port in DJI Naza or in DJI Phantom FC , or S1 on Quanum Nova) to the pitch control port of the gimbal controller. The GND is the bottom the Signal is the top pin on the board. The RC pitch control port is shown on Fig. 7. and Fig. 8.
For pitch control you only need a simple male to male servo wire or 2 Dupont cable. If you use a servo wire please disconnect the middle power red wire and use only white or yellow as signal and black or brown as ground.
Note: Never use middle pin under the signal (this is usually red servo wire) as it is the power supply and is not needed for pitch or tilt control and can damage the board  and will void warranty
Fig. 8. - Gimbal controller pin distribution
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Fig. 8. - Gimbal controller pin distribution

Pitch control connection examples

Fig. 9. explains how to connect the gimbal's pitch control cable to your Phantom.
Fig. 9. -  Use the F2 port for tilt control for all Phantoms with Naza controller
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Fig. 9. -  Use the F2 port for tilt control for all Phantoms with Naza controller
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Fig. 9. -  Use the F2 port for tilt control for all Phantoms with Naza controller
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Fig. 9. -  Use the F2 port for tilt control for all Phantoms with Naza controller
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Fig. 9. - Use the F2 port for tilt control for all Phantoms with Naza controller
Fig. 10.- Fix the camera tightly against the pitch motor
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Fig. 10.- Fix the camera tightly against the pitch motor

Mounting the Mobius or other action cam to the gimbal

 Use the camera mounting bracket and the supplied camera fixing screw with 2 washers to mount your camera in a perfectly balanced position  (Fig. 11.). In most cases this this can be achieved by mounting the camera tightly against the pitch motor screws as this will also help to reduce vibration (Fig. 10.)
Fig. 11 - Place one washer under the holder plate and an other washer at the top when attaching the camera.
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Fig. 11 - Place one washer under the holder plate and an other washer at the top when attaching the camera.
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Fig. 11 - Place one washer under the holder plate and an other washer at the top when attaching the camera.
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Fig. 11 - Place one washer under the holder plate and an other washer at the top when attaching the camera.

Mounting the gimbal to the multirotor frame

The CS-1 gimbal provide wide mounting possibilities for the most popular multirotors and also for DIY platforms. All mounting holes and rails cut on top plate are compatible with M3 or smaller screws (use washers with smaller sized screws )
The gimbal top plate has factory mounting hole spacing for DJI Phantom 1 (also FC40) and Phantom 2 (also Vision, Vison +), and other multirotoros which have identical or similar gimbal spacing mount like: Cheerson-CX20, DJI 450 Flamewheel, Quanum Nova, Walkera qr X350 Pro.
Fig. 12. shows how to mount onto Phantom 1 while also leaving easy access to the battery door.
Fig. 12. - Mounting on Phatom 1(with easy access to battery door) and Phantom 2
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Fig. 12. - Mounting on Phatom 1(with easy access to battery door) and Phantom 2
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Fig. 12. - Mounting on Phatom 1(with easy access to battery door) and Phantom 2
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Fig. 12. - Mounting on Phatom 1(with easy access to battery door) and Phantom 2
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Fig. 12. - Mounting on Phatom 1(with easy access to battery door) and Phantom 2
Fig. 13. - Powering up the gimbal
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Fig. 13. - Powering up the gimbal

Powering up the gimbal

The CS-1 gimbal controller has a 3s balance plug connector on a 15cm long wire. This can be used with all 3s lipo batteries.  If your multicopter is using a 3s battery you just need to connect to this balance connector and the gimbal is Ready To Fly (Fig. 13.)!


NOTE: Please make sure that the camera is mounted on the gimbal a before it's powered on, as without the counterweight the gimbal cannot work properly!  When connecting the power, the gimbal should be left in a stable position until it completes initialization (5-10 seconds). If the gimbal is moved or shaken during the calibration period it can cause unbalanced operation and malfunction.
If the gimbal does not level correctly, disconnect and reconnect it with the battery, hold your camera in leveled position and wait until the gimbal starts up.
Should you have any questions, please don't hesitate to contact us.
Have a good flight!
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