BaseCam SimpleBGC 8-bit ControllerSimpleBGC 8-bit Controller

BaseCam SimpleBGC 3rd axis L6234 extended boardL6234 version kit

BaseCam SimpleBGC 3rd axis L6234 extended board L6234 version

BaseCam SimpleBGC 3-axis discrete extended boardFET version

BaseCam SimpleBGC 3rd axis connection3rd axis connection


Connection diagram (131Kb 15.05.2013) Connection diagram for 2 controllers (86Kb 7.05.2013)
CAD drawing (DWG) (262Kb 3.02.2014) FET-version CAD drawing (DWG) (189Kb 3.02.2014) L6234-version CAD drawing (DWG) (156Kb 3.02.2014)
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BaseCam (AlexMos) SimpleBGC

The controller can be used for building high-quality 2-axis camera stabilizing systems which can be mounted to UAV and for building handheld camera stabilizers. For expanding capability to 3-axis,  3rd axis expansion board is used.

The principle of the camera stabilization using brushless direct drive motors

Size of the controller, mm

BaseCam (AlexMos) SimpleBGC 1.0 Controller Size

Where to Buy

The controller specifications

Number of stabilization axes 2
Power supply voltage: 8..18V (3s-4s LiPo)
Maximum DC current to each motor 2.8A
Limiting short-time current (with the inclusion of protection) to each motor: 7.1A
Output current regulation: 8 or 32 KHz PWM
Sensor connection: I2C
Supported sensors: MPU6050
PC communication for configuration and upgrade: on-board USB
Overcurrent protection: Yes
Overheat protection: Yes
Undervoltage protection: Yes
Reverse polarity protection: Yes
Dimensions: 50mm x 50mm (see drawing)
Mounting holes: M3, 45mm


To setup the controller, a special GUI is used. The complete setup procedure is described in the user manual.

BaseCam SimpleBGC 3rd axis' extension board

Ths board is intended for extending the capability of the SimpleBGC 2-axes controller to 3-axes.


Connection diagram (131Kb 15.05.2013)

To connect the extension board to the SimpleBGC 2-axes controller use 4 wires: SDA (I2C), SCL (I2C), GND (common), +BAT (power).
SDA and SCL are connected parallel to the sensor (note that for the I2C connection, its better to get as short wires as possible).

The 3rd axis board needs of the separate power supply from the battery. When powered by USB, the board doesnt work and is not recognized by the main controller at the start. To activate the extension board, choose it in the Motor Output drop-down list in the «Advanced» tab.

On the board there is a LED which shows the modes of operation:

  • LED does not light — power is not connected or protection has tripped by a short circuit or current overload (switching off for 1 sec);
  • LED lights constantly — power connected but commands is not arriving on the I2C bus;
  • LED is blinking constantly — commands are arriving and stabilization is working.

This board works only together  with the SimpleBGC 2-axes controller. Single operation is not possible.

Use the same motors as for the main  controller. Do not use regular motors for planes or multirotors! Use only special motors designed for gimbals with resistance between the phases not less than 5 ohms.

Where to Buy


FET version (discrete components):

Supply voltage: 721 V
Max. current rating: 5.5 A

L6234 version:

Supply voltage: 721 V
Max. current rating: 3 A shortly
1,5 A continuous


To setup the controller, a special GUI is used. The complete setup procedure is described in the user manual.