Cookies and Capacitors

5x7 LED dot matrix Pong

Sat, Jun 16, 2007 at 2:04AM

I have currently took on the challenge of familiarizing myself with a 5x7 LED Dot Matrix Pong project that I found. This was created by Havard Moen, Hakon A. Hjortland, and Alf Storm. When researching the project, I discovered that there was no schematic or parts list on the original site, so I went out and created my own! I e-mailed Hakon, and he replied with a general parts list. The replied message is shown below:

On Sun, 2007-06-17 at 17:14 -0500, Davis Remmel wrote:

I think that your work on the 5x7 pong project was excellent! If you could, would you please send me a parts list for the 5x7 pong project?

Thank you for your time, Davis

  • ATMega16
  • Decoupling capacitors: 100nF ceramic for example
  • 5x7 LED matrix
  • Series resistors for the 5x7 LED: 1kOhm for example
  • Score indicator and power indicator LEDs with series resistors (1kOhm for example)
  • Pushbuttons
  • 5V voltage regulator
  • Power supply. For example 9V. Or direct 5V instead of using voltage regulator.
  • Breadboard
  • Wires
  • Parts for home made upload cable: http://heim.ifi.uio.no/~haakoh/avr/uisp-parport-connect.txt Essentially DSUB25 connector (or is it 23? I don’t remember!) and wires.
  • Computer

Good luck!

– Best regards, Hakon

This is a general outline of parts, but I needed something more specific, and I want to share the information I created. The specific parts list is shown below:

Description
Digi-Key Part #
Price/ea [DK]
Radio Shack Part #
Price/ea [RS]
Qty (individual components)
1k Ohm 1/4W Resistor
1.0KQBK-ND
.054
271-1321
.99
10
7805 5V Voltage Regulator
497-1170-1-ND
1.04
276-1770
1.59
1
100nF Ceramic Disc Capacitor
399-4454-1-ND
.13
272-135
1.29
2
Atmel ATMega16(L)
ATMEGA16-16PU-ND
6.56
N/A
N/A
1
1.5-3V 20mA LED
754-1264-ND
.09
276-1622
2.59
3
N.O.Momentary Push Buttons
EG2490-ND
.031
275-1547
3.29
4
5x7 LED Dot Matrix Display
160-1002-ND
2.29
N/A
N/A
1
Programming Cable
Wire

Optional:
SPST Power Switch
Universal Breadboard
Enclosure: Mouser has some decent enclosures with battery space built in. They are like a GameBoy enclosure only "blank".
*Prices are in USD

Also, I had to draw up a schematic for this project, as there was not one supplied on the original site.

Schematic

I will keep everyone posted on my progress, but in the mean time you should really check out the other things on Hakon’s website; did you know that he also made a laser animation projector?!