Arduino DC Motor Control Tutorial

Block Diagram :-

Circuit Diagram :-

Code :-

//Prateek //www.prateeks.in #include <LiquidCrystal_I2C.h> LiquidCrystal_I2C lcd(0x27, 16, 2); #define potentiometer A2 #define bt_F A3 #define bt_S A6 #define bt_B A7 #define M1_Ena 11 #define M1_in1 10 #define M1_in2 9 int read_ADC = 0; int duty_cycle; int duty_cycle_lcd; int set = 0; void setup() { Serial.begin(9600); pinMode(potentiometer, INPUT); pinMode(bt_F, INPUT_PULLUP); pinMode(bt_S, INPUT_PULLUP); pinMode(bt_B, INPUT_PULLUP); pinMode(M1_Ena, OUTPUT); pinMode(M1_in1, OUTPUT); pinMode(M1_in2, OUTPUT); lcd.init(); lcd.backlight(); } void loop() { read_ADC = analogRead(potentiometer); duty_cycle = map(read_ADC, 0, 1023, 0, 255); duty_cycle_lcd = map(read_ADC, 0, 1023, 0, 100); analogWrite(M1_Ena, duty_cycle); lcd.setCursor(0, 0); lcd.print("Duty Cycle: "); lcd.print(duty_cycle_lcd); lcd.print("% "); if (digitalRead (bt_F) == 0) { set = 1; } if (digitalRead (bt_S) == 0) { set = 0; } if (digitalRead (bt_B) == 0) { set = 2; } lcd.setCursor(0, 1); if (set == 0) { lcd.print(" Stop "); digitalWrite(M1_in1, LOW); digitalWrite(M1_in2, LOW); } if (set == 1) { lcd.print(" Clockwise "); digitalWrite(M1_in1, HIGH); digitalWrite(M1_in2, LOW); } if (set == 2) { lcd.print(" Anticlockwise "); digitalWrite(M1_in1, LOW); digitalWrite(M1_in2, HIGH); } delay(50); }

Result :-