Controlling Motors with the motor Class

The motor class in the RpiL library is used to control the forward and backward movement of a motor using two GPIO pins for the forward and backward directions. This class allows you to control a motor directly without the use of a motor driver.

Class Overview

The motor class requires two arguments: * forward_pin - The GPIO pin connected to the motor’s forward direction control. * backward_pin - The GPIO pin connected to the motor’s backward direction control.

Methods

  • forward()

    • Activates the motor to move in the forward direction by setting the forward GPIO pin to HIGH and the backward GPIO pin to LOW.

  • backward()

    • Activates the motor to move in the backward direction by setting the forward GPIO pin to LOW and the backward GPIO pin to HIGH.

  • stop()

    • Stops the motor by setting both the forward and backward GPIO pins to LOW.

Example Usage

Here’s how you can use the motor class to control a motor:

from RpiL import motor

# Initialize motor with forward pin on GPIO 17 and backward pin on GPIO 27
motor_control = motor(forward_pin=17, backward_pin=27)

motor_control.forward()  # Move motor forward
time.sleep(2)  # Run motor for 2 seconds

motor_control.backward()  # Move motor backward
time.sleep(2)  # Run motor for 2 seconds

motor_control.stop()  # Stop motor

This example demonstrates how to initialize the motor with specific GPIO pins for forward and backward movement. The motor will run forward for 2 seconds, then backward for 2 seconds, and finally stop.

Notes

  • This class does not control motor speed. If you need to control the motor’s speed, you will need a motor driver with PWM (Pulse Width Modulation) capability.

  • Always ensure that the GPIO pins used are correctly configured to avoid damaging your Raspberry Pi.

Cleanup

The motor class automatically cleans up the GPIO pins when the object is deleted or the program ends, ensuring proper GPIO pin release.