![arduino - how to read and control the speed of a 12V - four wire fan? - Electrical Engineering Stack Exchange arduino - how to read and control the speed of a 12V - four wire fan? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/T87he.png)
arduino - how to read and control the speed of a 12V - four wire fan? - Electrical Engineering Stack Exchange
공지사항 제목 Fan 회전수 측정 -Tacho signal 작성자 roits9 작성일자 2011-11-02 조회수 2658 프로테크닉에서는 3wire 이상의 Fan은 Tachometer function, 즉 회전수를 확인할 수 있는 신호를 보내주고 있음. 일반적으로 검은색선은 (-) Ground선이고, 빨간색선은 ...
![Electrical Interfacing, Monitoring, and Control - Motley Electronic Topics - Engineering and Component Solution Forum - TechForum │ Digi-Key Electrical Interfacing, Monitoring, and Control - Motley Electronic Topics - Engineering and Component Solution Forum - TechForum │ Digi-Key](https://aws1.discourse-cdn.com/digikey/original/2X/e/ea14091bc0aeec3881cf0e571e4202ec613a68c8.png)
Electrical Interfacing, Monitoring, and Control - Motley Electronic Topics - Engineering and Component Solution Forum - TechForum │ Digi-Key
![sensor - 3 Wire Fan Tach, why using only one wire gives a signal? - Electrical Engineering Stack Exchange sensor - 3 Wire Fan Tach, why using only one wire gives a signal? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/eDGIb.png)