![]() ![]() Servo Motor Control using Arduino and PCA9685 Driver It has a built in clock so it can drive 16 servos free running, or independently of Arduino. The sketch on the Arduino (more on this later) then converts the analog input from the potentiometer into a digital output and sends this output to the servo motor which then moves left or right by the appropriate amount. This is a 16-Channel 12-bit PWM and servo driver which communicates with Arduino using the I2C bus. The servo motor has some control circuits and a potentiometer (a variable resistor, aka pot) connected to the output shaft. The potentiometers send an analog signal to the Arduino. Servo Motor + Potentiometer + Arduino: Potentiometer-Controlled Servo: Hello World Im Unicorn Clockworks, here with another project. We can also set the rotation of the shaft at different speeds. There’s also another way of controlling servos with Arduino, and that’s using the PCA9685 servo driver. The project allows us to control the shaft at angles between 0 and 180 degrees. ![]() Of course, we can set any servo to move to any position, at any time.Īs an example you can also check my Arduino Ant Hexapod Robot project where I used an Arduino MEGA board to control 22 servo motors. So, we just have to create objects from the Servo class for each servo motor, and define to which Arduino pin is connected. In default, 0V will output as 0 in digital and 5V will output as 1023. The ADC in the Arduino will convert analog signal to digital signal. By rotate the knob or slide the botton of potentiometer, will change the voltage to the Arduino analog pin. Controlling multiple servo motors with Arduino First we read the potentiometer reading using analogRead () function. ![]()
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