Step 1: Electronics- Parts You'll Need:

Here's what you’ll need:

1- Arduino Uno- https://www.adafruit.com/products/50

2- Adafruit MP3 shield- https://www.adafruit.com/product/1790

3- 3 Sparkfun mosfet breakout boards- https://www.adafruit.com/product/1790

4- 12 volt power supply- https://www.adafruit.com/product/1790

5- 5 volt power supply- https://www.adafruit.com/product/1790

6- PIR motion sensor- https://www.adafruit.com/product/1790

7- 12V white LED strip cut into 3 pieces, 2 ft length each- https://www.amazon.com/Flexible-Daylight-Non-water...

8- Micro SD card with SD card reader adapter- https://www.amazon.com/Kingston-Digital-microSDHC-...

9- 3 ft red and black 2 stranded 20-24 gauge wire- Radioshack (if it stillexists in your town. Otherwise, a local hardware or electronics store should have it)

10- 3' of a different color 20-24 gauge wire- (read above location)

Step 2: Tools You'll Need

Tools you'll need:

1- Soldering station- Radioshack or electronics store

2- Solder- Radioshack or electronics store

3- Helping hands- Radioshack or electronics store

4- Rosin flux (optional, but it helps a lot)- Radioshack or electronics store

5- Flush cutters- Radioshack or electronics store

6- Tiny flat head screwdriver- Radioshack or electronics store

Step 3: Assembly:

1- Assemble the MOSFET breakout boards as shown

2- Wire the external 12V power supply to the MOSFET breakout boards by daisy chaining the positive terminals, making sure the positive lead of the 12V power is connected to each breakout board on the 3 terminal side of the MOSFET.

3- Repeat the same process with the ground wire from the 12V power supply, with the addition of joining the ground ground from the Arduino as well

4- Use the different colored wire (I used yellow) and cut into three strands, 1 ft in length each

6- Solder the 3 (yellow) wires to pins 9,10, and 11 to the Arduino without the mp3 shield (in some pictures you may see that they are soldered to the mp3 shield. This is wrong)

7- Connect the ground (black) wire from the mp3 shield to the second Arduino.

8- Connect each of the yellow wires from pins 9,10, and 11 on the second Arduino to the port labelled “C” on the 3 screw terminal port side on the MOSFET’s

9- Solder 12ft of the 2 stranded red and black wire to each of the LED strips to the + and - copper pads.

10- Take the other ends of the 2 stranded wire and use your screwdriver to tighten in to the 2 port screw terminals on the MOSFET’s

11- Connect external computer speakers (or anything better) to the audio jack on the mp3 shield.

12- Solder the connections on the PIR sensor ground, 5V, GND, and digital pin 3

13- Download the 2 codes and upload them to your Arduinos.