Introduction: Make MP3 and a Holga

About: I like to tinker with just about anything, sometimes it works out in the end. Have fun looking at the projects, try tearing something open and let me know how it goes. cheers, -Joe

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

Parts

MakeMP3 Player Kit link
Holga (broken prefered)
3 AAA
5 momentary push button switches (N.O.)
Wire
slide switch (spst)
solderless breadboard (small)

Tools

Soldering Iron
Dremel
Snips
wire stripper
screw drivers

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.