I have a code that is turning on and off two DC motors.
I wonder if my electronic schematics is correct?
I'm using those relays
Each motor have is own 12V PSU
edit: the way my schematics are now - I'm switching the VCC of the PSU on and off. is it better to switch the ground? or my schematics are fine? what is more typical? is there a difference at all?
edit2: here is the full code:
const int ledPin1 = 2; // Pin for LED 1
const int ledPin2 = 3; // Pin for LED 2
float durations1[] = {10, 5, 10, 5}; // Durations for LED 1 in seconds
float durations2[] = {5, 10, 5, 10}; // Durations for LED 2 in seconds
int numDurations1 = sizeof(durations1) / sizeof(durations1[0]); // Number of durations for LED 1
int numDurations2 = sizeof(durations2) / sizeof(durations2[0]); // Number of durations for LED 2
int currentState1; // Current state index for LED 1 (starting from 1 to indicate initial ON state)
int currentState2; // Current state index for LED 2
byte ledState1; // LED state for LED 1 (HIGH = on, LOW = off)
byte ledState2; // LED state for LED 2 (HIGH = on, LOW = off)
unsigned long previousMillis1 = 0; // Previous timestamp for LED 1
unsigned long previousMillis2 = 0; // Previous timestamp for LED 2
void setup() {
pinMode(ledPin1, OUTPUT);
pinMode(ledPin2, OUTPUT);
Serial.begin(9600);
ledState1 = HIGH; // Set initial state of LED 1 to ON
currentState1 = 0; // Reset the state index of LED 1 to the first state
digitalWrite(ledPin1, ledState1); // Apply the initial state to LED 1
ledState2 = HIGH; // Set initial state of LED 2 to OFF
currentState2 = 0; // Reset the state index of LED 2 to the first state
digitalWrite(ledPin2, ledState2); // Apply the initial state to LED 2
}
void loop() {
updateLed1();
updateLed2();
}
void updateLed1() {
unsigned long currentMillis = millis();
// Check if enough time has passed for the current duration of LED 1
if (currentMillis - previousMillis1 >= durations1[currentState1] * 1000) {
// Toggle the LED state for LED 1
if (ledState1 == HIGH) {
ledState1 = LOW;
} else {
ledState1 = HIGH;
}
// Update LED 1
digitalWrite(ledPin1, ledState1);
// Print LED 1 state and time of state change
if (ledState1 == HIGH) {
Serial.print("LED 1 ON - ");
} else {
Serial.print("LED 1 OFF - ");
}
Serial.println(currentMillis);
// Move to the next state for LED 1
currentState1 = (currentState1 + 1) % numDurations1;
// Reset the timer for LED 1
previousMillis1 = currentMillis;
}
}
void updateLed2() {
unsigned long currentMillis = millis();
// Check if enough time has passed for the current duration of LED 2
if (currentMillis - previousMillis2 >= durations2[currentState2] * 1000) {
// Toggle the LED state for LED 2
if (ledState2 == HIGH) {
ledState2 = LOW;
} else {
ledState2 = HIGH;
}
// Update LED 2
digitalWrite(ledPin2, ledState2);
// Print LED 2 state and time of state change
if (ledState2 == HIGH) {
Serial.print("LED 2 ON - ");
} else {
Serial.print("LED 2 OFF - ");
}
Serial.println(currentMillis);
// Move to the next state for LED 2
currentState2 = (currentState2 + 1) % numDurations2;
// Reset the timer for LED 2
previousMillis2 = currentMillis;
}
}
