LPC2131 Development Board Chapter 4-LPC2131 features .1-GPIO. GPIO output experiment- light water experiment GPIO_leds8-2.rar... ARM-PowerPC-ColdFire-MIPSOthers
Bidirectional leds
A novel microprocessor interface circuit is described which can alternately emit and
detect light using only an LED, two digital I/O pins and a single current limiting re-
sistor.... Project DesignPDF
AT89S52 MCU cycle of digital tube display examples realize that allows everyone to see so clearly with digital control to display the number of... SCMC++