ScottTV: A Simple Media Player For My Autistic Son

Hardware components:
Wood Plate 1220x80x18mm
× 1
Wood Plate 1220x75x18mm
× 2
Wood Plate 764x75x18mm
× 2
Different colors and protector paint
× 1
Acrylic glass plate 8mm
Size depends of the used screen
× 1
12994 02
Raspberry Pi 1 Model B+
× 1
Lcd Monitor
× 1
1 Usb Stick
× 1
Pc Speakers
× 1
Power supply 5V 4A
× 1
1 Wifi Stick
× 1
55mm Pipe Stop End
For the Piezo Buttons
× 6
BC548
For the Piezo Buttons
× 6
Ne555
For the Piezo Buttons
× 6
10K Resistor
For the Piezo Buttons
× 12
330R Resistor
For the Piezo Buttons
× 3
56K Resistor
For the Piezo Buttons
× 6
1N4148 Diode
For the Piezo Buttons
× 6
10nF
For the Piezo Buttons
× 12
10uF
For the Piezo Buttons
× 12
Led 3mm
For the Piezo Buttons
× 6
Piezo Speaker Element min. 20mm
For the Piezo Buttons
× 6
BC547 or equivalent NPN Transistor
For the adapter circuit
× 7
IN4148
For the adapter circuit
× 6
Resistor 10k
For the adapter circuit
× 7
Resistor 1k
For the adapter circuit
× 6
screw terminals 3 pin
For the adapter circuit
× 2
screw terminals 4 pin
For the adapter circuit
× 1
40 Pin Connector
For the adapter circuit
× 1
Piezo Buzzer 5V
For the adapter circuit
× 1
Wires and connectors
× 1
Wireless Socket 433Mhz
× 1

ScottTV: A Simple Media Player For My Autistic Son

STORY

A media player nearly indestructible an controllable with 6 Buttons to choose a movie

Hi all,

I want to show you this media player for my son Scott.

He has autism, so the challenge was to make it simple, robust and easy to clean.

So I build this device with 6 Big Buttons. The media menu shows a preview of 6 cartoons. If the button next to the preview is pushed, this movie is played. Now all the buttons are offline for 5sec.

If you push any of the 6 buttons, the movie stops and the player jumps back to the main menu.

It’s based on a Raspberry Pi B+

Scott loves it:

Build instructions

Step 1: Woodworking

Cutting a hole in the wood plate. I took the dimensions of the LCD screen and I added 1 cm on each side. Drilling 48mm holes for the buttons and test if everything fits.

Fill all the irregularities with wood paste.

On the bottom 2 cut outs for the foot bar.

Step 2: Paint Job

After sanding the whole thing, I sprayed a few layers of gray ground paint.

All painted with red paint. I used a small projector to put an Image of Shin Chan on the front. Then I drew the picture and colored it with Acryl colors.

Now 2 layers of transparent protector paint:

Step 3: The Big Piezo Buttons

I need a few robust buttons. I could not find buttons in a certain size, so I decided to create my own.When you push or tap the front side of the button, you will get an impulse of +-1sec. The piezo will generated a small impulse, which is amplified by a transistor. A Ne555 in monostable mode gives me a 1sec impulse.

circuit of ScottTV

I used a 55mm Pipe Stop End. I sand the piece to remove the irregularities. In the pipe stop end, I glued a 35mm Piezo element inside it with super glue.

I painted the Button yellow.

I used a piece of plastic angle and cut 2 small pieces of it. With Hot glue they are kept in place and with epoxy glue they will stay there forever. I drilled 2 small holes in the angels to fix the PCB.

Read More: ScottTV: A Simple Media Player For My Autistic Son

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