1 Overview
1. Overview
This manual provides directions on how to connect, adjust and calibrate the SimpleBGC 32bit 3-Axis
controller board by Basecam Electronics. To begin using the board the following are the components that
are necessary to assemble:
• The controller board and additionally either one or two IMU units.
• A USB connection to the board or an optional Bluetooth converter (a standard TTL interface
Bluetooth module readily available in the market).
• A computer to make and write settings to the controller via Basecam's software.
• And the Basecam software which runs on Windows, MacOS and Linux. The software is downloaded
from the Basecam website. Note that the GUI software version should match (or be greater than)
the firmware version deployed on the board.
Also needed ultimately is a gimbal with 1, 2 or 3 brushless direct-driven motors, that is well balanced in
each dimension about its center point. The objective for gimbal design is that the center of effort be a fixed
unmoving point- irrespective of the position of the gimbals arms and that the camera (the stabilized device)
be mass-centered at that point. Gimbal construction should be very stiff – the only motion that is
acceptable, is a rotation of motor's shaft. Flexible arms or shaft bearing end play may seriously impact the
quality of stabilization.
Additional optional components such as switches, joystick operation and interfaces to remote control
devices (PWM, Sum PPM, or S.Bus from a standard RC receiver) are described in detail farther on.
SimpleBGC32 actively compensates for undesirable movement in the stabilized portion of the gimbal
(which mounts a camera or other device) that requires precise positioning irrespective of movement in the
surrounding frame of reference. Stabilizing is accomplished by driving gimbal motors in response to
reception of a signal from the gyroscopic sensor(s). The primary gyroscopic sensor is mounted on the
camera to register precisely any rotation (to be compensated). Either one or two sensors can be used - a
Primary IMU (sensor) which is attached to the camera and optionally a Frame IMU (sensor) which is
attached to the frame in one of two positions). When two sensors are attached, a data from both is used by
the controller board simultaneously for more precise system stabilization. To improve system performance,
optional rotary position sensor (encoder) may be installed on each motor. More info about advantages and
requirements of using encoders, you can find on the page http://www.basecamelectronics.com/encoders/
SimpleBGC32 implements a simple Serial API protocol, that allows any external device to communicate
with the gimbal controller and introduce a great possibility to apply stabilization solutions in many areas.
Serial API specification and examples can be found at the page http://www.basecamelectronics.com/serialapi/
© Basecamelectronics
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2013-2020 3
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