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new file mode 100644
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diff --git a/Week 3/Relay/Relay.ino b/Week 3/Relay/Relay.ino
new file mode 100644
index 0000000..e04c040
--- /dev/null
+++ b/Week 3/Relay/Relay.ino	
@@ -0,0 +1,13 @@
+// Relay
+int relay = 7;
+
+void setup() {
+  pinMode(relay, OUTPUT);
+}
+
+void loop() {
+  digitalWrite(relay, HIGH);
+  delay(10000);
+  digitalWrite(relay, LOW);
+  delay(5000);
+}