Getting a servo working with Johnny-Five
To get a servo working with Johnny-Five, we'll look at the Johnny-Five servo object, talk about wiring the servo to our PWM hat, and write our first piece of code to get the servo to sweep back and forth.
The Johnny-Five servo object
Looking at the servo page in the API section of the Johnny-Five documentation, we will look first for our constructor. Because we're still using the PCA9685 PWM hat, our constructor will look like this:
let servo = new five.Servo({ controller: "PCA9685", pin: 0 });
As for moving the servo, there are a few method described in the docs to move the servo. The first move can be to a fixed position:
servo.to(degree) servo.min() servo.max() servo.home() servo.center()
Or, another is to sweep back and forth, either as far back and forth as possible, or between a range:
servo.sweep() // goes 0-180 and back, then repeats servo.sweep(minDegree, maxDegree) // goes min to max and back, then repeats
You can also stop a moving servo...
