資料來源:https://www.sparkfun.com/products/10596
Rotary encoders are used similarly to potentiometers. They’re different from potentiometers in that an encoder has full rotation without limits. They output gray code so that you can tell how much and in which direction the encoder has been turned.
This encoder is especially cool because it has a red/green LED built in, as well as a push-button. Look below for the clear knob that goes with this potentiometer.
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旋轉編碼器也同樣採用電位器。他們從電位器,一個編碼器具有沒有限制的全方位旋轉不同。他們輸出格雷碼 ,這樣你可以告訴多少和方向編碼器已打開。
該編碼器是特別爽,因為它有一個紅/綠色LED內置的,以及一個按鈕。看看下面的旋鈕明確與此電位去。
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