Weather stations are a popular project for experimenting with various environmental sensors, and for wind speed and direction the choice is usually a simple cup anemometer and wind vane.

RS485 is a communication standard that should be part of the advanced hardware hacker’s arsenal; it’s not commonly encountered, but powerful exactly when you need it. It’s a physical layer ...

The main mast, above the pilot house, carries radar antennas, navigation lights, various antennas, the ship's anemometers, and flag halyards ... Omega and most sensors that have an RS485, RS422, RS232 ...

TTL，RS232，RS485都是一种逻辑电平的表示方式，是串口的三种不同的电平标准。 TTL TTL ：全双工 （5V系统，逻辑1: 2.4V–5V 逻辑0: 0V–0.5V）。TTL指双极型三极管逻辑电路，市面上很多“USB转TTL ...