Look for credible sources like GitHub or specialized electronic forums.
Connect digital output pins from your microcontroller (e.g., Pins 2, 3, 4, and 5 on an Arduino) directly to the IN1, IN2, IN3, and IN4 pins on the relay module block. --- 4 Channel Relay Module Library For Proteus
With the wiring completed, you can run the simulation using two different approaches: Method A: Manual Testing (LogicState) Look for credible sources like GitHub or specialized
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// Define control pins for the 4 relay channels const int relay1 = 8; const int relay2 = 9; const int relay3 = 10; const int relay4 = 11; void setup() // Configure pins as outputs pinMode(relay1, OUTPUT); pinMode(relay2, OUTPUT); pinMode(relay3, OUTPUT); pinMode(relay4, OUTPUT); // Initialize all relays to OFF state (Active-Low logic) digitalWrite(relay1, HIGH); digitalWrite(relay2, HIGH); digitalWrite(relay3, HIGH); digitalWrite(relay4, HIGH); void loop() // Sequentially turn ON each relay channel digitalWrite(relay1, LOW); delay(1000); digitalWrite(relay2, LOW); delay(1000); digitalWrite(relay3, LOW); delay(1000); digitalWrite(relay4, LOW); delay(1000); // Sequentially turn OFF each relay channel digitalWrite(relay1, HIGH); delay(1000); digitalWrite(relay2, HIGH); delay(1000); digitalWrite(relay3, HIGH); delay(1000); digitalWrite(relay4, HIGH); delay(1000); Use code with caution. Running and Troubleshooting the Simulation
// Define Relay Input Pins const int relayPins[4] = 2, 3, 4, 5; void setup() for(int i = 0; i < 4; i++) pinMode(relayPins[i], OUTPUT); digitalWrite(relayPins[i], HIGH); // Keep relays OFF initially (Active Low) void loop() for(int i = 0; i < 4; i++) digitalWrite(relayPins[i], LOW); // Turn Relay ON delay(1000); digitalWrite(relayPins[i], HIGH); // Turn Relay OFF delay(1000); Use code with caution. Troubleshooting Common Simulation Errors
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