diff --git a/.travis.yml b/.travis.yml
index 6a1cba5..329c47a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,7 +17,7 @@ deploy:
   skip_cleanup: true
   provider: releases
   overwrite: true
-  file: ".pioenvs/emonth2/emonth2.hex"
+  file: ".pioenvs/emonth2/firmware.hex"
 
 
 ## Setup auto depoly .hex on release tag
diff --git a/test/test_main.cpp b/test/test_main.cpp
new file mode 100644
index 0000000..eea454e
--- /dev/null
+++ b/test/test_main.cpp
@@ -0,0 +1,60 @@
+// http://docs.platformio.org/en/feature-platformio-30/platforms/unit_testing.html#example
+
+// Unit test to test opperation of ATmega328 by flashing LED (pin 9) and checking output
+
+// Requires PlatformIO 3.0
+
+#include <Arduino.h>
+#include <unity.h>
+
+#ifdef UNIT_TEST
+
+// void setUp(void) {
+// // set stuff up here
+// }
+
+// void tearDown(void) {
+// // clean stuff up here
+// }
+
+
+void test_9_pin_number(void) {
+    TEST_ASSERT_EQUAL(9, 9);
+}
+
+void test_led_state_high(void) {
+    digitalWrite(9, HIGH);
+    TEST_ASSERT_EQUAL(digitalRead(9), HIGH);
+}
+
+void test_led_state_low(void) {
+    digitalWrite(9, LOW);
+    TEST_ASSERT_EQUAL(digitalRead(9), LOW);
+}
+
+
+
+void setup() {
+    UNITY_BEGIN();    // IMPORTANT LINE!
+    RUN_TEST(test_9_pin_number);
+    pinMode(9, OUTPUT);
+}
+
+uint8_t i = 0;
+uint8_t max_blinks = 5;
+
+void loop() {
+    if (i < max_blinks)
+    {
+        RUN_TEST(test_led_state_high);
+        delay(500);
+        RUN_TEST(test_led_state_low);
+        delay(500);
+        i++;
+    }
+    else if (i == max_blinks) {
+      UNITY_END(); // stop unit testing
+    }
+}
+
+#endif