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How to control the speed of a motor with Arduino?
Basic Arduino Code to control the motor to Start, Stop and control the speed of your motor using Pulse Width Modulation (PWM) Power Supply (Choose your power supply based on the motors requirement – I found an old 12V power supply in my shed that does the trick)
How does an Arduino work with a transistor?
Place the Arduino on the breadboard with the pins divided by the board gap Place the transistor in a free space on the breadboard away from the Arduino pin lines Place the 1 kΩ resistor between Arduino pin 3 to the base pin of the transistor (in this case it’s the left pin if looking at the transistor metallic side)
How does a 12V motor control work?
Switch on the power supply and read the voltage value on the Multimeter – If the reading is positive, then the power supply output connected to the Multimeter red lead is the positive terminal
How does a zero load motor control work?
Connect the motors second terminal to the power supply ground wire Switch on the power supply and read the current on the Multimeter – This is the Zero Load motor current Now switch off the power supply and hold the motor pinion so that it has a high physical resistance
How to check PWM frequency on Arduino?
Open the Arduino serial monitor via the Arduino ID–>tools–>Serial Monitor (2nd image) Watch the PWM value and the state of the motor as it gradually slows down Record the value at which the motor is no longer running. This is the minimum PWM frequency at which you can code your motor control with Zero Load.
How can I control the speed of a DC motor?
The PWM (Pulse-Width Modulation ) is a signal with a variable duty cycle. If we use this signal and a transistor we can control the speed of a motor. In this case the inductor represent the motor. Thanks to the PWM signal DC Motor doesn’t feel 12V but the voltage that it feels is proportional to the PWM.