Design a small electronic circuit to drive an LED matrix.

  • Status: Closed
  • Hadiah: $50
  • Penyertaan diterima: 6
  • Pemenang: yousufhusain434

Ringkasan Peraduan

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: [login to view URL] 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.

Kemahiran Disyorkan

Maklum balas Majikan

“It was great. Thank you.”

Gambar Profil Tobiaszu, Switzerland.

Penyertaan teratas dari peraduan ini

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Papan Penjelasan Umum

  • lazeeez100100
    lazeeez100100
    • 4 weeks ago

    you told us "You just need to draw the circuit"

    • 4 weeks ago
    1. lazeeez100100
      lazeeez100100
      • 4 weeks ago

      me must be the winner

      • 4 weeks ago
    2. lazeeez100100
      lazeeez100100
      • 4 weeks ago

      this not fair

      • 4 weeks ago
  • Tobiaszu
    Penganjur Peraduan
    • 1 month ago

    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.

    • 1 month ago
    1. yousufhusain434
      yousufhusain434
      • 1 month ago

      Sir please check #10. The Eagle library of IC IS31FL3736 is not available. So I created the library myself. Please rate me. Any kind of change is possible.

      • 1 month ago
  • SK Technology Pvt Ltd
    SK Technology Pvt Ltd
    • 1 month ago

    #increaseprize and then pls invite me

    • 1 month ago
  • yousufhusain434
    yousufhusain434
    • 1 month ago

    Sir will you display only numbers (0-9) or anything else?

    • 1 month ago
    1. Tobiaszu
      Penganjur Peraduan
      • 1 month ago

      Yes, I also need to display some characters.

      • 1 month ago
    2. yousufhusain434
      yousufhusain434
      • 1 month ago

      Sir please check #8. You can display any character even scroll character in this display.

      • 1 month ago
  • Tobiaszu
    Penganjur Peraduan
    • 1 month ago

    It will be an 8 MHz, 8 bit processor. GPIOs, SPI, I2C are available.

    • 1 month ago
  • lohug
    lohug
    • 1 month ago

    whats the clock speed of the microcontroller you are using?, or can I have the full name of it? thank you

    • 1 month ago
  • Tobiaszu
    Penganjur Peraduan
    • 1 month ago

    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.

    • 1 month ago
  • JaimeAlbq
    JaimeAlbq
    • 1 month ago

    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?

    • 1 month ago
    1. Tobiaszu
      Penganjur Peraduan
      • 1 month ago

      You don't need to create a PCB. Just the schematic.

      • 1 month ago
  • Capa1T
    Capa1T
    • 1 month ago

    LEDs' Anodes are connected to columns or rows of matrix?

    • 1 month ago
    1. Tobiaszu
      Penganjur Peraduan
      • 1 month ago

      However you want. The LEDs will be populated on a PCB, I won't take a matrix LED module.

      • 1 month ago
  • lohug
    lohug
    • 1 month ago

    if im using an ATMEL microproccessor should the programmer be included in the bill of materials?

    • 1 month ago
    1. Tobiaszu
      Penganjur Peraduan
      • 1 month ago

      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.

      • 1 month ago
  • khanjzthanjzt
    khanjzthanjzt
    • 1 month ago

    End product you need should be?

    • 1 month ago
    1. Tobiaszu
      Penganjur Peraduan
      • 1 month ago

      This is for a machine, to display numbers and simple messages. Thank you.

      • 1 month ago

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