Led Matrix Power Supply

Discussion in 'Embedded Systems and Microcontrollers' started by SachinJangra, Jun 2, 2015.

  1. SachinJangra

    Thread Starter New Member

    Jun 2, 2015
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    0
    I built a 16x16 led matrix just like the schematics below(The schematics is for 8x8 matrix but i used the same logic to create a 16x16 matrix). I am going to use an Arduino uno to control all of these leds. I will use 74HC595 shift register to minimize the pins used. I will lit up 1 row at a time means a maximum of 16 leds at a time but i know that arduino cannot power 16 leds at the same time.
    [​IMG]
    So i have to use an external power supply but i have no idea how to use an external power supply to power the leds and use the arduino just to control all of these leds. Please help me...
     
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