A 10k ohm variable resistor.
Ac motor speed controller arduino.
The arduino pro mini is used to store motor controls pid algorithms and to communicate with the pc through com port.
The en a pin of ic is connected to the pwm pin 2 of arduino.
Hmi will show motor speed graphs and change motor speed settings.
By john nussey.
How to control the speed of a dc motor with the arduino.
To do it it is needed that the motor has a speed rotation sensor.
These two digital pins of arduino control the direction of the motor.
The same motor i had in my workshop.
Module ic s sockets transistors switches special motors stepper motors and access servo motors drone motors fpv telemetry trans receiver heat shrink tubes 5 to 10mm hi link power supply module rs 50 geared motor carbon fiber propeller propeller 11 inch above 25 ga motor silicone wires 24 to 30 awg heavy duty wheels planetary gear dc motors.
Without it the motor will spin at it s maximum 15000 19000 rpm.
Here a bt136 triac is used which controls the ac voltage as it is a power electronic switch for controlling an ac voltage signal.
It s too much for wood lathe.
This pwm signal will decide the amount of voltage output to the ac motor which in turn controls the speed of it.
It controls the torque of the motor.
To control the motor peed we could use a scr voltage regulator but at low rpm the motor will be weak with no torque.
This regulator is full suitable with wash motor such as mc3064.
The complete code of this arduino ac fan speed control project is given at the bottom of this.
In this present article we only restrict ourselves to discussions around esp32 arduino ac motor speed control module and circuit.
But dimming action with ac appliances is not that easy it demands knowing some theory.
Using an ac appliance for switch on and off quite easy by using an usual mechanical relay or a solid state relay.
Only one thing left the motor speed controller.
The computer should have hmi made by visual studio to communicate with arduino.
The mst k07 permits to control an ac universal motor brushed motor maintaining the rotation speed when the load changes.