SteadyWin 28 Modular Gimbal Controller (BaseCam 32-bit)

The SteadyWin 28 Modular Controller is a licensed BaseCam SimpleBGC 32-bit gimbal controller engineered for compact 3-axis stabilisation rigs running 28mm stator-class brushless motors — the smallest tier in SteadyWin's 28/35/43 modular lineup. That places it firmly in the cinema, broadcast, and industrial payload bracket, where gear reliability is the difference between keeping a client and quietly deleting their number. Inside the 50×50mm board: a 32-bit ARM Cortex M4 at 72MHz, high-grade MEMS gyros, and high-efficiency FET drivers delivering enough torque for cinema-grade glass without self-immolating. It supports dual IMU configurations, absolute encoders on every axis, automatic PID tuning, and MavLink autopilot integration. You manage it from Windows, macOS, or Linux desktop, with an Android app for on-set tweaks. Firmware is user-upgradeable via GUI, and the whole thing is 100% backward compatible with legacy 8-bit SimpleBGC controllers — so your existing rigs aren't rendered obsolete overnight. UMT has been building and shipping commercial stabilisation systems for over a decade; we know which boards survive a real shoot and which don't.

Specifications

• Controller platform: BaseCam SimpleBGC 32-bit (licensed by SteadyWin)
• Variant: 28 Modular Controller (designed for 28mm stator-class gimbal motors — smallest tier in the modular lineup)
• MCU: 32-bit ARM Cortex M4, 72MHz
• Board dimensions: 50 × 50mm
• Board weight: 16.71g
• Mounting holes: 45mm centre spacing, 3mm diameter
• Power input: 8–25V (3s–5s LiPo) [Rev. A] / 8–26V (3s–6s LiPo) [Rev. B]
• Max motor current: 1.5A total across 3 motors
• 5V output: up to 1A for external devices
• 3V output: 50mA (Rev. B only)
• Axes: 3-axis stabilisation with high-grade MEMS gyros
• IMU support: 1 or 2 IMU sensors (dual configuration improves stability); optional external high-grade IMU
• Absolute encoders: Supported on each motor axis
• Control protocols: Futaba, Spektrum, 5× PWM, Sum-PPM, 3× ADC, Serial API
• PID tuning: Automatic
• Operation profiles: Up to 5 user-configurable profile sets
• Follow mode: Per-axis configurable
• Battery compensation: Voltage drop compensation
• Autopilot integration: MavLink-enabled autopilot support
• Management software: Windows / macOS / Linux desktop GUI; Android app; limited iOS/iPadOS support
• Serial API: Open API for custom integrations
• Firmware: User-upgradeable via GUI
• Backward compatibility: 100% compatible with older 8-bit SimpleBGC controllers
• SKU: Controller-1
• Total weight: 152 g

What's in the Box

• 1x 2806 Main Controller (BaseCam SimpleBGC 32-bit) /w motor driver
• 2x Motor driver boards
• 1× IMU sensor
• 1× Wiring harness