4-Channel 5V Relay Module Expansion Board for Arduino
Jump to navigation
Jump to search
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.
http://dx.com/p/arduino-4-channel-5v-relay-module-expansion-board-137109
// the setup routine runs once when you press reset: void setup() { // initialize the digital pin as an output. pinMode(2, OUTPUT); // relay 1 pinMode(3, OUTPUT); // relay 2 pinMode(4, OUTPUT); // relay 3 pinMode(5, OUTPUT); // relay 4 } // the loop routine runs over and over again forever: void loop() { digitalWrite(2, HIGH); // turn the relay 1 on (HIGH is the voltage level) delay(1000); // wait for a second digitalWrite(2, LOW); // turn the relay 1 off by making the voltage LOW delay(1000); // wait for a second digitalWrite(3, HIGH); // turn the relay 2 on (HIGH is the voltage level) delay(1000); // wait for a second digitalWrite(3, LOW); // turn the relay 2 off by making the voltage LOW delay(1000); // wait for a second digitalWrite(4, HIGH); // turn the relay 3 on (HIGH is the voltage level) delay(1000); // wait for a second digitalWrite(4, LOW); // turn the relay 3 off by making the voltage LOW delay(1000); // wait for a second digitalWrite(5, HIGH); // turn the relay 4 on (HIGH is the voltage level) delay(1000); // wait for a second digitalWrite(5, LOW); // turn the relay 4 off by making the voltage LOW delay(1000); // wait for a second }