Design a small electronic circuit to drive an LED matrix.

Estado: Closed
Premio: $50
Propuestas recibidas: 6
Ganador: yousufhusain434

Winner

Resumen del concurso

You just need to draw the circuit.
The circuit needs to drive 60 LEDs which are arranged like in the attached picture:
Four times 3 x 5 matrixes to display numbers.
The LEDs will have a flow voltage of 2.8-3.5V.
The whole matrix display with the 60 LEDs will be connected to a micro controller through max. eight wires total.
Design the driving circuit. It should be cheap and all components need to be available at both: digikey.com and mouser.com.
Add a little bill of material with the order numbers.
If possible, draw the circuit with Autodesk Eagle.
The best circuit wins.

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Comentarios del empleador

“It was great. Thank you.”

Tobiaszu, Switzerland.

Principales propuestas de este concurso

yousufhusain434 Bangladesh

0
lazeeez100100 Egypt

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lohug Mexico

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lazeeez100100 Egypt

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Tablero de aclaración pública

lazeeez100100
- 5 años atrás
you told us "You just need to draw the circuit"
- 5 años atrás
1. lazeeez100100
  - 5 años atrás
  me must be the winner
  - 5 años atrás
2. lazeeez100100
  - 5 años atrás
  this not fair
  - 5 años atrás
SK Technology Pvt Ltd
- 5 años atrás
#increaseprize and then pls invite me
- 5 años atrás
Organizador del concurso
- 5 años atrás
The IC IS31FL3736 seems to be the best solution for my needs. Can anybody draw a nice and correct schematic in Eagle, with all the components in some libraries? A component consists of a symbol, a footprint and a pinout table. Thank you! This schematic will win.
- 5 años atrás
Organizador del concurso
- 5 años atrás
It will be an 8 MHz, 8 bit processor. GPIOs, SPI, I2C are available.
- 5 años atrás
lohug
- 5 años atrás
whats the clock speed of the microcontroller you are using?, or can I have the full name of it? thank you
- 5 años atrás
Organizador del concurso
- 5 años atrás
Dear everybody, I am out of the office for a few days and might not be able to connect to the internet all the time. I will get back to this competition in a week, latest. Thank you.
- 5 años atrás
JaimeAlbq
- 5 años atrás
Which size do you want this PCB? How much do you want to spend on it? The LED should be SMD or THT, and which size of them?
- 5 años atrás
1. Organizador del concurso
  - 5 años atrás
  You don't need to create a PCB. Just the schematic.
  - 5 años atrás
Capa1T
- 5 años atrás
LEDs' Anodes are connected to columns or rows of matrix?
- 5 años atrás
1. Organizador del concurso
  - 5 años atrás
  However you want. The LEDs will be populated on a PCB, I won't take a matrix LED module.
  - 5 años atrás
lohug
- 5 años atrás
if im using an ATMEL microproccessor should the programmer be included in the bill of materials?
- 5 años atrás
1. Organizador del concurso
  - 5 años atrás
  No. Actually, there will be a micro controller on another PCB. It will drive the LED matrix board through max. eight wires as mentioned in the description. Less wires would be better, but that also depends on the price of the other components.
  - 5 años atrás
khanjzthanjzt
- 5 años atrás
End product you need should be?
- 5 años atrás
1. Organizador del concurso
  - 5 años atrás
  This is for a machine, to display numbers and simple messages. Thank you.
  - 5 años atrás