diff --git a/Week 3/Relay-Motor/Relay-Motor.arduino.avr.uno.elf b/Week 3/Relay-Motor/Relay-Motor.arduino.avr.uno.elf
new file mode 100755
index 0000000..939bc58
Binary files /dev/null and b/Week 3/Relay-Motor/Relay-Motor.arduino.avr.uno.elf differ
diff --git a/Week 3/Relay-Motor/Relay-Motor.arduino.avr.uno.hex b/Week 3/Relay-Motor/Relay-Motor.arduino.avr.uno.hex
new file mode 100644
index 0000000..73bfe5e
--- /dev/null
+++ b/Week 3/Relay-Motor/Relay-Motor.arduino.avr.uno.hex	
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diff --git a/Week 3/Relay-Motor/Relay-Motor.ino b/Week 3/Relay-Motor/Relay-Motor.ino
new file mode 100644
index 0000000..01d4fac
--- /dev/null
+++ b/Week 3/Relay-Motor/Relay-Motor.ino	
@@ -0,0 +1,19 @@
+long val;
+int spin;
+
+void setup() {
+  Serial.begin(9600);
+  Serial.println("Trolaso");
+}
+
+void loop() {
+  val = analogRead(A0);
+  Serial.println("valor: ");
+  Serial.println(val);
+  spin = map(val, 0, 1023, 0, 255);
+
+  analogWrite(9, spin);
+  Serial.println("giro: ");
+  Serial.println(spin);
+  delay(500);
+}