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創客萊吧 MakerLab

$ 35.0 元

Load Cell Amplifier- HX711
售價 : NT$ 350.0 元
製造商 :sparkfun
適用運送方式 : 7-11取貨付款,7-11純取貨,郵寄(單一運費),貨運,宅配,貨到付款,7,8
出貨時程: 【現貨+預購】如遇缺貨,預購交期為4~10個工作天(不含例假日)   

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產品上架時間 2015 六月 22 週一.


SparkFun稱重傳感器放大器 - HX711

說明:  SparkFun稱重傳感器放大器是HX711 IC的小型擴充板,可讓您輕鬆讀取稱重傳感器以測量重量。透過放大器連接到微控制器,您將能夠讀取傳感器電阻的變化,並且通過一些校準,您將能夠獲得非常準確的重量測量結果。這對於創建您自己的工業規模,過程控製或簡單的存在檢測來說非常方便。


稱重傳感器使用四線  惠斯通電橋  連接到HX711。這些通常是紅色,黑色,白色,綠色和黃色。每種顏色對應於稱重傳感器的常規顏色編碼:

  • 紅色(激發+或VCC)
  • 黑色(激發-或GND)
  • 白色(放大器+,信號+或輸出+)
  • 綠色(A-,S-或O-)
  • 黃色(盾牌)



  • 工作電壓:2.7V-5V
  • 工作電流:<1.5mA
  • 可選擇10SPS或80SPS輸出數據速率
  • 同時提供50和60Hz電源抑制

SparkFun Load Cell Amplifier – HX711

 Description: The SparkFun Load Cell Amplifier is a small breakout board for the HX711 IC that allows you to easily read load cells to measure weight. By connecting the amplifier to your microcontroller you will be able to read the changes in the resistance of the load cell and with some calibration you’ll be able to get very accurate weight measurements. This can be handy for creating your own industrial scale, process control, or simple presence detection.

The HX711 uses a two wire interface (Clock and Data) for communication. Any microcontroller’s GPIO pins should work and numerous libraries have been written making it easy to read data from the HX711. Check the hookup guide below for more information.

Load cells use a four wire wheatstone bridge to connect to the HX711. These are commonly colored RED, BLK, WHT, GRN, and YLW. Each color corresponds to the conventional color coding of load cells:

  • Red (Excitation+ or VCC)
  • Black (Excitation- or GND)
  • White (Amplifier+, Signal+, or Output+)
  • Green (A-, S-, or O-)
  • Yellow (Shield)

The YLW pin acts as an optional input that is not hooked up to the strain gauge but is utilized to ground and shield against outside EMI (electromagnetic interference). Please keep in mind that some load cells might have slight variations in color coding.


  • Operation Voltage: 2.7V-5V
  • Operation Current: < 1.5mA
  • Selectable 10SPS or 80SPS output data rate
  • Simultaneous 50 and 60Hz supply rejection


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