By the end of this you will have a set of christmas fairy lights that flash in time to jingle bells as can be seen in the attached video. Feel free to modify it and make it your own once you have completed these steps.
During this tutorial I have provided serveral links to Arduino's own tutorials and more about Arduino can be found here.
No soldering required.
Hovering over the image squares gives you more information.
Total time to complete: 2 hours (you do not need to complete all of this in one sitting)
Please note that as always you will need a computer with USB capabilities to program your Arduino.
Step 1: Things you will need
Step 2: Connecting up the LEDs
Step 3: Making the LEDs blink
Step 4: Setting up the speaker for Jingle Bells
Step 5: Code for Jingle Bells
Step 6: Making the LEDs flash with the sound
Step 7: Starting and stopping with a button
Step 8: Setting up your fairy lights
Step 9: Connecting your relay shield
Step 10: Testing your relay shield
Step 11: Connecting your fairly lights
Step 12: Finished product