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BaseCam SimpleBGC 32-bit Gimbal Controller

BaseCam SimpleBGC 32-bit Gimbal Controller
BaseCam SimpleBGC 32-bit Gimbal Controller
Product Code: BASECAM32
Availability: Out Of Stock
Price: $259.99
   - OR -   

Package Content
1 X Basecam 32bit Gimbal Controller
1 X IMU sensor with 50cm flex cable
1 X Battery Sensor Buzzer
1 X Battery Cable

The controller can be used for building high-quality 3-axis camera stabilizing systems which can be mounted to UAV and for building handheld camera stabilizers.

This version of the controller is our new direction in the development of the stabilizing solutions. It will replace the previous 8-bit version of the SimpleBGC controller, keeping 100% back-compatibility, but adding the new fuctionality.

Download files and User Manual for 32bit controller

Basic functions of the controller

  • 32-bit MCU — ARM Cortex M4. Effectively calculates the complex tasks for 3-axes stabilization.
  • Allows camera control with the RC or analog joystick.
  • Use several switchable profiles for different modes of operation
  • Supports variety of RC protocols: PWM, Sum-PPM, spektrum and s-bus.
  • Battery voltage monitoring, compensating voltage drop in the PID-regulator.
  • Low battery alarm (output to 5V active buzzer).
  • Increased number of inputs for controlling signals + 3 additional reserved input/output AUX1-AUX3.
  • Can supply up to 1A current for external devices on the 5V power line.
  • Dedicated UART-socket to connect optional Bluetooth module
  • Reverse-polarity protection, overheat and overcurrent protection
  • USB interface for the PC connection, to configure, control and upgrade firmware.
  • Graphical user interface to manage the settings. Windows / OS X / Linux versions.
  • Control through the Serial-protocol using dedicated API.
  • Improved attitude estimation algorythms
  • Optional second IMU, that will increase the short-term precision of the stabilization 10x-30x times and  will make stable work in any frame position.

The principle of the camera stabilization using brushless direct drive motors

In fact, gimbal based on BLDC motors is very similar to regular gimbal based on hobby servo. The main difference - each axis of rotation passes through the center of gravity (CG) of the "Camera + frame" system and rigidly connected to the BLDC motor. The absence of gear - a fundamental point that lets you use the inertia of the system is not to harm, but for good. In case of ideal balance of the camera, the rotor rotates freely without resistance and even without need of applying extra control force, which allows the camera to unleash from the disturbance from UAV frame. In addition, there is no backlash inherent gears or belts.

To control the motors, a special controller was designed. It receives information from gyroscopes and accelerometers mounted on the camera platform. A standard IMU algorithm is used to define camera inclination angles. With the remote control, operator sets desired tilt angle. PID-controller calculates the amount of compensation and send command to the power unit, which controls the current in the windings and thus the direction of the vector of magnetic field in the stator. Magnetic field moves the rotor to the right position.

Due to using IMU, mechanical part of the system is a very simple. There is no need in complex and expensive high-definition encoders for each axis. Just mount tiny IMU board on the camera platform, connect wires to controller and motors and all done!

It gives impressive quality of stabilization compared with regular servos.

Basic requirements for the mechanical design of gimbal frame

  • The possibility of precise balancing on three axes. The better the balance, the lower the current need for stabilization.
  • Mechanical rigidity of bearing elements to prevent resonances from working propellers in flight.
  • Minimizing friction in the joints. The better the gimbal axis are unleashed from UAV camera platform, the less effort is required from the engine to stabilize
  • Elimination of vibrations from the main UAV frame. The vibrations have a negative impact on the quality of the video. But another negative effect in this system is that vibration will lead to self-excitation of the closed-loop controller.

Dimensions, mm

BaseCam SimpleBGC 32-bit Controller Size


Size of the board: 50×50 mm
Distance between the mounting holes: 45 mm
Diameter of the mounting holes: 3 mm
Power supply voltage: 8–25 V
Maximum motor current: 1,5 A
5V output current to power external devices: up to 1 A


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