Arduino dc motor speed control

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Speed control of DC motor with PC Interface is an easy DIY project.

In this project DC motor’s speed is controlled by sending the command through PC. The transistor acts like a switch, controlling the power to the motor. So it is very simple and easy task.

When motor completes revolution, the sensor generates pulse and such pulses are calculated by arduino to calculate RPM. Motor Speed Control. There are different types of DC motors: Brushed DC motor, Brushless DC motor, Geared DC motor, Servo motor, Stepper motor and DC Linear Actuator.

Connect the cathode of the red led to GNDPIN.

Different types of motors are used in different applications like Robotics, precision positioning, industrial automation etc. It can also control the direction of the rotation. Hence, we use transistors to form an H-bridge to drive the. Se hela listan på electronicshub.

It is a Microcontroller Based prototyping board. It is an NPN transistor with an output current of 800mA. Hence, four transistors with high current capability are used.

The wiper terminal of the POT is connected to the Analog Pin (A0) of the Arduino. The other terminals are connected to Vcc and GND. Four transistors are connected as shown in the circuit diagram. Transistors Qand Qform the backward direction path while transistors Qand Qform forward rotation path. Arduino is the main processing unit of the project.

The inputs to the transistors are given from the Arduino. Pins and are connected to base of Qand Qrespectively. In order to eliminate the effect of any back EMF, four diodes are connected across the collector and emitter of each transistor.

The working of the project is explained here assuming all the connections are made as per the circuit diagram. The POT is connected to the analog pin Aof the Arduino. This is used to adjust the speed of the motor. The normal operation of the motor is to rotate in forward direction. For forward rotation of the motor , transistors Qand Qmust be turned on.

When the button is pressed once, the transistors Qand Qmust be turned on. If the button is pressed the motor will change its direction directly. Satisfying Service. Find the Newest Product.

Contact SGS audited suppliers now! Allt inom Aktiva Komponenter. Delbetala i upp till månader. The speed of the motor depends on value that was passed to the analogWrite function. Remember the value can be between and 255.

The potentiometer will be used to control the motor speed and a small switch will control the direction the motor spins. First, insert the breadboard friendly switch into the breadboard. GHz communication link.