Steam punk is played out, this is straight up NASA punk. Or at least I imagine if it were the 1960s space race and NASA was commissioned to make an MP3 player, this is what it would look like.
This project uses the Daisy Mp3 Player kit from MAKEzine, a VU meter from this instructable , and a case from Curious Inventor.
Step 1: Parts
-LM3915 x 2
-1k ohm resistor x 3
- 1 1/8" Stereo Jack
- 1 1/8" Stereo plug
- Analog Gauge
- DPST Toggle switches with return to center spring x 5
- SPST Toggle switches x 2
-LED Holders x3
-5v power supply
-panel mount power jack
-Case from Curious Inventor http://www.curiousinventor.com/store/product/156
-MakeMP3 player kit.
-Stand offs x8
Crimp terminals and .1" headers
Step 2: MP3 Kit
Build the mp3 player kit following the instructions that come with the kit. They are very good and I can't better it here...
Step 3: VU Meter
Step 4: VU Meter Positive
You'll need to use a resistor or two to limit the + voltage going to the meter. I used a 1k2 and a 4.7k resistor soldered together to get the right voltage for the meter to read accurately.
Step 5: Solder Your Switches Together.
Solder your switches together, I used crimp pins and connectors to connect the switches to the MP3 player kit.
I used a handy little tool from www.CuriousInventor.com, a crimper for this small connector. You don't need this, you could solder or use pliers, but it is so much easier to use.
Step 6: Box
Time to drill the main hole in the box for your panel mount gauge.
The meter from RadioShack meter included a template to use for drilling the hole. I used a drill press and a bimetal hole saw.
Step 7: Mark the Box for Switches
Ok you'll want to mark the box for switch location and LED location.
I was having a problem in some of my past projects lining up all the holes for switches so they would look good.
I covered the box with masking tape, used a square (also form curious inventor) and marked with a pencil. This was the first time I tried this and it worked out really well.
Step 8: Holes for the Boards
Mark the base of the box for mounting the boards for your VU meter and MP3 player kit.
Step 9: Power and Stereo
Drill two holes in the back of the case for power and your 1 1/8" jack.
Step 10: Put It Together
Plug it all together and bask in the nasa punk goodness.
I ran one LED for showing power was on, and then moved the two LEDs from the MakeMP3 board off to the outside of the case along the top where you see the LED holders.
Participated in the
The Instructables Book Contest