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Servo (PWM) Expansion
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The Servo Expansion adds 16 PWM (Pulse Width Modulation) outputs to your Omega. Connect standard servos directly to the Expansion since each channel has its own 3-pin connectors, making it that much easier to get started with your project! This Expansion is great in any application that requires servos, like a robotics project or anything with moving parts. Given that PWM is so useful, you can also use this Expansion to precisely control LEDs or drive a DC motor using an H-bridge.
The Servo Expansion adds 16 PWM (Pulse Width Modulation) outputs to your Omega. Get started with your project quickly by connecting standard servos directly to the onboard 3-pin connectors! Use this for anything with moving parts, such as robotics or driving DC motors. You can also make a light show with LEDs by controlling their brightness!
It has a built-in oscillator that is used to generate PWM signals with frequencies in the range of 24 Hz to 1526 Hz. The generated PWM signals are free running, so once you set the desired duty cycle of a channel, the signal will be continuously generated without any further commands. Each of the PWM channels are programmed independently to desired duty cycles or all at once to the same duty cycle. A single command can disable the oscillator’s output to quickly disable all of the PWM outputs at once.
If you’re using LEDs or a few servos under a light load, you can power the Servo Expansion by plugging it into a Dock (sold separately) that will supply 5V to the 16 PWM channels.
But we love building robots and using lots of servos at once, so we’ve included a DC barrel jack adapter on the Expansion you can use to supply more juice. The PWM signal will be stepped up to the voltage coming in from the barrel jack. The Omega and Dock’s 5V line is isolated from the DC barrel jack for protection, so you’ll still have to provide power to your Omega.
- Number of Channels: 16
- PWM Signal resolution: 12-bits resulting in a 4.9us resolution at 50Hz
- Minimum PWM Signal Frequency: 24 Hz
- Maximum PWM Signal Frequency: 1526 Hz