It's common to have a window or a garage door in a house. We need to automate these kinds of devices, so that we can move these objects with a DC motor. In this section, we will see how to connect a DC motor to the Raspberry Pi. To do this, we will use a L293D circuit to control the motor.

First we will see how to connect the motor to our Raspberry Pi Zero board. In the following diagram, we can see the pins out of the LD293 chip:

We basically need to connect the components of the circuit, as follows:

The following image shows the results:

We will now test the speed of the DC motor from 0 to the highest speed:

// Modules 
var Gpio = require('pigpio').Gpio; 
// Create motor instance 
var motorSpeed = new Gpio(18, {mode...