Did you always want to know how getting a coin by hitting a block feels?
Or maybe you just want a cool place to store your coins.
Well this is the perfect project for you!
Step 1: Materials
Step 3: Prepare the mp3 player
You have to make an empty folder with just the sound of the coin, so each time you press the button you heard the sound of the coin.
Step 4: Electronic boards
One is used as a timer. Is responsible for making the servo rotate 360 degrees each time it activates.
The second is an amplifier. It is used to listen to the mp3 player sound on a common speaker. The two boards work on 4.8 volts from rechargeable batteries.
1 - NE555
1 - 100nf capacitor
2 - 1k resistors
1 - 470uf capacitor
1 - tip41c transistor
1 - 10k preset
1 - LM386
2 - 100nf capacitor
1 - 100uf capacitor
1 - 10uf capacitor
1 - 10k resistor.
1 - 1k reistor.
You can find the pdf file for making this boards in the intro step, or just use a perfboard.
Step 5: Coin tube
Take some coins and tape them together. Cover the half of a paper with glue and roll the coins there.
Then repeat this with a few more papers. When the glue is dry cut about 50mm of the center of this tube.
If you have to make a handle for the servo make it 38mm long.
Step 7: Prepare the top
Step 8: Inside
Then secure the spring with a piece of wire.
Paste the tube for the coins in front of the hole and secure it with some pieces of cardboard. Now you can test if everything is going to work.
The next videos will show you how to test it.
Step 9: Assemble the box
It can be made larger but you would have to enlarge the images of the sides.
Paste guides to 3mm from the top. These guides will provide support for the cover, which is not glued.
The back is open, you only have two guides for the sliding mechanism (see step 11).
Step 10: Decorate
The design can be modified, assuming that the sides are of bricks or question mark.
Color the edge of the cardboard with a black marker.
The pdf files for these pictures can be found in step 1.
Step 11: Slider
It has to be firmly secured to the wall. It will also be the support for the timer switch and play switch.
The next pictures will show you how to do it.
Step 12: Finish
Put everything inside the box. Only the battery and speaker are attached, other things can be loose.
Put the back of the box on before securing it to the wall to test if the box can go up and down.