简单的光开关电路,Simple optical switch Introduction The 555 is proved to be the most versatile and ubiquitous IC all over the world.This is a possible use: simple inverting schmitt trigger.Circuit ex
简单的直流电机PWM调速电路 Simple DC motor PWM speed controlThe 555 is ubiquitous and can be used as simple PWM speed controlCircuit Explaination: The 555 Ic is wired as an astable and the frequency i
简单伺服测试仪电路--Simple Servo Testerclick here to download schematic in pdfThis is a simple servo tester which will comprehensively test the capabilities of almost any modern servo. It has two push