HX711

源自於
https://sites.google.com/site/csjhmaker/e0/hx711-gan-ce-qi-mo-zu

#include "HX711.h" HX711 scale; void setup() {   Serial.begin(38400);   Serial.println("HX711 Demo");   Serial.println("Initializing the scale");   // parameter "gain" is ommited; the default value 128 is used by the library   // HX711.DOUT - pin #A1   // HX711.PD_SCK - pin #A0   scale.begin(A1, A0);   Serial.println("Before setting up the scale:");   Serial.print("read: \t\t");   Serial.println(scale.read()); // print a raw reading from the ADC   Serial.print("read average: \t\t");   Serial.println(scale.read_average(20));   // print the average of 20 readings from the ADC   Serial.print("get value: \t\t");   Serial.println(scale.get_value(5)); // print the average of 5 readings from the ADC minus the tare weight (not set yet)   Serial.print("get units: \t\t");   Serial.println(scale.get_units(5), 1); // print the average of 5 readings from the ADC minus tare weight (not set) divided // by the SCALE parameter (not set yet)   scale.set_scale(2280.f);                      // this value is obtained by calibrating the scale with known weights; see the README for details   scale.tare();         // reset the scale to 0   Serial.println("After setting up the scale:");   Serial.print("read: \t\t");   Serial.println(scale.read());                 // print a raw reading from the ADC   Serial.print("read average: \t\t");   Serial.println(scale.read_average(20));       // print the average of 20 readings from the ADC   Serial.print("get value: \t\t");   Serial.println(scale.get_value(5)); // print the average of 5 readings from the ADC minus the tare weight, set with tare()   Serial.print("get units: \t\t");   Serial.println(scale.get_units(5), 1);        // print the average of 5 readings from the ADC minus tare weight, divided // by the SCALE parameter set with set_scale   Serial.println("Readings:"); } void loop() {   Serial.print("one reading:\t");   Serial.print(scale.get_units(), 1);   Serial.print("\t| average:\t");   Serial.println(scale.get_units(10), 1);   scale.power_down();         // put the ADC in sleep mode   delay(5000);   scale.power_up(); }

產品簡介：

重量感測放大器-HX711是使用HX711晶片將你讀取的重量透過放大器傳送到控制器，讓你可以讀取到很精確的電阻值變化，讓後續程式邏輯的編寫較為容易來達到你要的目地。

產品規格：

• 工作電壓：2.7V-5V
• 工作電流：< 1.5mA
• Selectable 10SPS or 80SPS output data rate
• Simultaneous 50 and 60Hz supply rejection

文件下載：

• Schematic
• Eagle Files
• Hookup Guide
• Getting Started with Load Cells
• Datasheet (HX711)
• GitHub (Design Files & Example Code)
• GitHub (Library)