buzzer relay

基本解释

The moving part of an electromagnetic device such as a relay, buzzer, or loudspeaker.
電樞：電磁裝置的移動部分，如繼電器，蜂音器或敭聲器。
odict.net
The moving part of an electromagnetic device such as a relay, buzzer, or loudspeaker.
電樞電磁裝置的移動部分，如繼電器。
The system achieves multi-channel temperature signal acquisition and control. Temperature limit is set by keyboard. The buzzer and relay are controlled by MCU.
本系統可以實現多路溫度信號採集與顯示，可以使用按鍵來設置溫度限定值，通過進行溫度數據的運算処理，發出控制信號達到控制蜂鳴器和繼電器的目的。