Intro: Make MP3 and a Holga
Who needs the iPod when you can have the HolgaPod. Use the MAKE MP3 Player kit and a Holga to make a cool portable MP3 Player.
Step 1: Parts
MakeMP3 Player Kit link
Holga (broken prefered)
5 momentary push button switches (N.O.)
slide switch (spst)
solderless breadboard (small)
Step 2: Assemble MakeMP3 Kit
Follow the PDF with the make MP3 kit.
Things to note, read all of the instructions, sort out the resistors, crystals and capacitors.
One crystal is marked with black, its the 25mhz one.
Also you need to use a jumper where it says mosfet (pic #2)
When soldering the chips on, many are surface mount, so take your time and use a thin tip on your soldering iron.
Step 3: Test It
You need to transfer songs to a SD card, the SD card has to be formatted fat32.
Put them in the / directory of the card.
You can use a small piece of wire to test the player and try grounding pins d0 d1 d2 d3 ....
Step 4: Pick a Holga
Find a Holga, they are C H E A P. They are all over ebay, and B & H usually has them for $9. Thats cheaper than most project boxes. Mine had stopped working so it become the home of the Make MP3 kit.
Step 5: Unscrew It
Unscrew the top. There are 3 screws, one on the left and two below the film winder wheel.
Step 6: Grand Master Flash
If yours has a flash, remove it, set it aside, cause you can do something with that... It is held in place by 4 screws.
Then snip the wires off.
Step 7: Remove the Battery Holder
Remove the battery holder if it has one.
Step 8: Dremel the Holga
Ok its time to hollow out the holga. I used a dremel and some big wire snips.
Do not cut the outside of the holga though, only the insides.
And try and leave two of the posts to screw the top back on.
Step 9: Put a Hole in the Film Winder
Now drill a hole in the film winder big enough for your earphones to go through.
Step 10: Solderless Breadboard
I wanted to use a solderless breadboard, I plan on taking the Make MP3 kit out of the holga for another project later, and this will let me have that flexibility. I had to cut one up using a dremel.
Step 11: Holga Body
I drilled 4 holes in the front of the body of the holga for the volume and forward/backwards buttons.
The holes should be in the far corners of the body to allow room for the mp3 player kit to fit in. See pic #2 for the location.
Step 12: Top
Drill a hole in top piece for the play pause button.
Use the existing hole for the old flash power button for a new power button. Line it up and drill some holes to mount the switch.
Step 13: Solder the Buttons
I solder all of the buttons first before putting them in the case. Leave a nice tail of wire so you can cut it down later.
Step 14: Solder the Play and Power Switch
Solder the play button and then the power switch.
Step 15: Put the Buttons In.
Put all the buttons in and make sure everything fits.
Step 16: Power
Solder all of the negatives together, and then the positive up to the switch.
Step 17: Head Phones
Run the headphones through the wheel and the top.
Step 18: Screw It Back Together
Screw it back together and you are done.