昨天认识了Arduino，今天来看看Arduino的各种常用开发板。 它有各种型号的，如Arduino Uno、Arduino Leonardo、Arduino101、Arduino Mega 2560、Arduino Nano、Arduino Micro、Arduino Ethernet、ArduinoYún、Arduino Due、Arduino33 ...

Stepper motors are mostly used for precise motion control of structures or axes for a distance. But what happens if we want to control time? We can answer this question with the bare motor rotation, ...