Printed circuit board layout pcb design effects with LEDs been a good practice to work in the dark when used with an ultra bright LEDs looks very nice. Atmel AT90S2313 64 LEDs instead of creating Propeller microcontroller TINY2313 BASCOM-AVR... Electronics Projects, Led Propeller Circuit AT90S2313 ATINY2313 "avr project, led projects, microcontroller projects, " Date 2019/08/03