This small project let you make running leds. For this project you need a ATTtiny2313 microcontroller with 8 leds and 8 resistors. The leds can be programmed so that they show differrent patterns.

 

 Schematic and build

The leds are connected to PORTB of the microcontroller via the resistors that limit the current to 20mA. The project can be build an a small breadboard, but the ATTiny2313 and the LED board can be used also. You can buy them at www.bizztronix.eu.

running leds sch

attiny2313v2 1

ledbrd red