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Learning JavaScript Robotics by Kassandra Perch

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Creating a project with a servo and a sensor

Let's start with just a servo and the REPL, then we can add in a sensor. Use the diagram from the previous section as a reference to wire up a servo, and use pin 6 for signal.

Before we write our program, let's take a look at some of the options the Servo object constructor gives us. You can set an arbitrary range by passing [min, max] to the range property. This is great for low quality servos that have trouble at very low and very high values.

The type property is also important. We'll be using a standard servo, but you'll need to set this to continuous if you're using a continuous servo. Since standard is the default, we can leave this out for now.

The offset property is important for calibration. If ...

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