#Motor arduino driver

The easiest method to achieve this is by using a potentiometer. However situations may arise where we want to vary the speed of the actuator in time. In the above example we manually set the speed in line 17 of the code. Varied speed controlВ with a potentiometer We can also adjust the speed by changing the variable вЂњSpeedвЂќ to any value in the range see line 17 in code below.

To stop the actuator we set both pins to LOW (see line 21 and 22 in code below)and to reverse the direction of motion we can reverse the order of the HIGH and LOW pins (see line 24 and 25 in code below). By setting one of these pins LOW and the other HIGH (see line 18 and 19 in code below) we can extend the actuator at maximum speed.

#Motor arduino driver

The motor driver is connected to two PWM digital pins (pins 10 and 11 on the Arduino Uno). Therefore we use a motor driver that can take a low current PWM (pulse width modulation) signal from the Arduino board and output a high current PWM signal to the linear actuator. The DC motors in linear actuators require a high current (up to 5A), if we were to connect the linear actuator directly to the Arduino this high current draw would destroy the Arduino digital pins as they are only rated for 40mA each. Electrical wires for making connections and crimping tool or soldering iron.Please be aware that we do not have the resources to provide technical support for custom applications and will not debug, edit, provide code or wiring diagrams outside these publicly available tutorials. If this is your first time using Arduino we suggest learning the basics from one of the many great beginner tutorials available through Google and YouTube searches. Note: This tutorial assumes prior knowledge with basic electronic principles, Arduino hardware and software. In this example weвЂ™ll control the speed a linear actuator with an Arduino and motor driver.