Little Bird
Servo Expansion for Onion Omega2
Add 16 independent PWM outputs to your Onion Omega2 for controlling servos, DC motors, and LED brightness. The onboard 3-pin connectors let you plug in stand...
Add 16 independent PWM outputs to your Onion Omega2 for controlling servos, DC motors, and LED brightness. The onboard 3-pin connectors let you plug in standard servos directly – no breadboard or extra wiring needed.
The built-in oscillator generates free-running PWM signals from 24Hz to 1526Hz. Once configured, signals continue without further commands, freeing your Omega for other tasks. Each channel can be set independently or all at once.
Key Features
- 16 PWM Channels – Control multiple servos, motors, or LEDs
- 12-Bit Resolution – Precise control with 4096 steps
- Direct Servo Connection – 3-pin headers for standard servos
- Free-Running Output – Set once, runs continuously
- External Power Option – DC barrel jack for high-power applications
- Adjustable Frequency – 24Hz to 1526Hz range
Ideal For
- Robotics projects with multiple servos
- DC motor speed control
- LED dimming and light shows
- Pan/tilt camera mounts
- Animatronics
Specifications
- PWM Channels: 16
- Resolution: 12-bit (4.9μs at 50Hz)
- Frequency Range: 24Hz – 1526Hz
- Power: 5V from Dock, or external via DC barrel jack
Compatibility
- Onion Omega2 / Omega2+
- Requires a Dock with Expansion Header (Expansion Dock, Power Dock, or Arduino Dock R2)
Package Contents
- 1× Servo Expansion for Onion Omega2
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- 12-bit resolution
- 12-bit resolution means the sensor’s measurement is divided into 4096 possible digital values. Higher resolution can make small changes in motion or tilt easier to detect, as long as the sensor range and noise are suitable for the project.
- DC barrel jack
- A round power connector commonly used for low-voltage DC power supplies, often described by its outer and inner diameters such as 5.5 x 2.1 mm. Matching the barrel size and polarity is important so the plug physically fits and powers the device correctly.
- Headers
- Rows of metal pins used to plug a module into a breadboard or connect it with jumper wires. Pre-soldered headers make the module easier to use straight away without needing to solder the pins yourself.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
- servo
- A servo is a motor with built-in position control, usually told to move to a specific angle by a control signal. It matters when you need repeatable movement, such as steering, arms, flaps, or linkages, rather than continuous spinning.
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