Home :: Projects :: Big 4 Inch 4 Digit LED Display System using ATmega8

Big 4 Inch 4 Digit LED Display System using ATmega8

Big 4 Inch 4 Digit LED Display System using ATmega8
SKU SKU17813  
Weight 10.00 grams
 
Our price: Rs2,358.82 ($49.13)
including IGST 18% ( Rs359.82 )
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4 inch 4 digit LED display

This microcontroller based LED display system can be programmed and used for any type of industrial automation unit requiring large public numeric displays.

  • Manual counter (increase, decrease and reset push buttons)
  • Object counter (by connecting a object sensor)
  • Room temperature display (by connecting a LM35 sensor)
  • Clock (by connecting a RTC module)
  • Stop watch
  • Token number display
  • and much more as per your requirement

At the hearth of this circuit is ATmega8 28 PIN microcontroller IC that can be programmed in C language for various types of application. The MCU is clocked from its internal 8MHz RC oscillator, thus does NOT require any external crystal. The microcontroller is connected to ULN2003 IC and few transistors that helps in driving large size 12 volt LED digit displays. The control board has a 10 PIN FRC cable that is used to download programs using a AVR programmer.

Few i/o ports of the microcontroller are available on the male headers. They are listed below.

  • PC0
  • PC1
  • PC2
  • PC3
  • SDA
  • SDL

These are used to connect various other things likes buttons, sensors or RTC module as per requirement.

Main board is powered by a 12V transformer and the board has onboard rectifier diodes and filter capacitor to convert this to DC current required for the display. Additionally the board also has 7805 voltage regulator to generate stable 5v supply required for the microcontroller.

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