diff --git a/sketch_may03a/sketch_may03a.ino b/sketch_may03a/sketch_may03a.ino
new file mode 100644
index 0000000..2e29707
--- /dev/null
+++ b/sketch_may03a/sketch_may03a.ino
@@ -0,0 +1,72 @@
+const int sensorPin = A0;
+const float baselineTemp = 0.0;
+
+void setup() {
+  // put your setup code here, to run once:
+  Serial.begin(9600);
+  for (int pinNumber = 3; pinNumber < 8; pinNumber++) {
+    pinMode(pinNumber, OUTPUT);
+    digitalWrite(pinNumber, LOW);
+  }
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  int sensorVal = analogRead(sensorPin);
+  Serial.print("Sensor value: ");
+  Serial.print(sensorVal);
+
+  float voltage = ((sensorVal / 1024.0) * 5.0);
+  Serial.print(", Volts:  ");
+  Serial.print(voltage);
+
+  Serial.print(",  degrees C:   ");
+  float temp = (voltage - .5) * 100;
+  Serial.print(temp);
+  Serial.print("\n");
+
+  if (temp > baselineTemp && temp <= baselineTemp + 5) {
+    digitalWrite(3, HIGH);
+    digitalWrite(4, LOW);
+    digitalWrite(5, LOW);
+    digitalWrite(6, LOW);
+    digitalWrite(7, LOW);
+    digitalWrite(8, LOW);
+  } else if (temp > baselineTemp + 5 && temp <= baselineTemp + 10) {
+    digitalWrite(3, HIGH);
+    digitalWrite(4, HIGH);
+    digitalWrite(5, LOW);
+    digitalWrite(6, LOW);
+    digitalWrite(7, LOW);
+    digitalWrite(8, LOW);
+  } else if (temp > baselineTemp + 10 && temp <= baselineTemp + 15) {
+    digitalWrite(3, HIGH);
+    digitalWrite(4, HIGH);
+    digitalWrite(5, HIGH);
+    digitalWrite(6, LOW);
+    digitalWrite(7, LOW);
+    digitalWrite(8, LOW);
+  } else if (temp > baselineTemp + 15 && temp <= baselineTemp + 20) {
+    digitalWrite(3, HIGH);
+    digitalWrite(4, HIGH);
+    digitalWrite(5, HIGH);
+    digitalWrite(6, HIGH);
+    digitalWrite(7, LOW);
+    digitalWrite(8, LOW);
+  } else if (temp > baselineTemp + 20 && temp <= baselineTemp + 25) {
+    digitalWrite(3, HIGH);
+    digitalWrite(4, HIGH);
+    digitalWrite(5, HIGH);
+    digitalWrite(6, HIGH);
+    digitalWrite(7, HIGH);
+    digitalWrite(8, LOW);
+  } else if (temp > baselineTemp + 25) {
+    digitalWrite(3, HIGH);
+    digitalWrite(4, HIGH);
+    digitalWrite(5, HIGH);
+    digitalWrite(6, HIGH);
+    digitalWrite(7, HIGH);
+    digitalWrite(8, HIGH);
+  }
+  delay(1000);
+}