Cella di carico - HX711

Description

Electronic board based on the HX711 chip, a 24-bit analog-to-digital converter, specific for interfacing the load cell to a microcontroller such as Arduino, Fishino or compatible. Dimensions (mm): 33.6x20.5x3. Warning! Arduino, Fishino and the load cell are not included (see related products). HX711 chip features Differential input channels: two (selectable) Simple digital control and serial interface: pin-driven controls, no programming required Output data rate: 10SPS or 80SPS (selectable) Power supply: 2.6 to 5.5 volts Consumption: <1.5 mA Operating temperature: -40 ° C to + 85 ° C Case: SOP-16 Example of use with Arduino and HX711 board (not included) #include “HX711.h” #define calibration_factor -9580.00 // This value is obtained using the SparkFun_HX711_Calibration sketch #define DOUT 4 #define CLK 5 HX711 scale (DOUT, CLK); void setup () {Serial.begin (9600); Serial.println (“HX711 scale demo”); scale.set_scale (calibration_factor); scale.tare (); // Assuming there is no weight on the scale at start up, reset the scale to 0 Serial.println (“Readings:”);} void loop () {Serial.print (“Reading:”); float libbre = scale.get_units (); float kg = (libbre / 2.2046); Serial.print (kg, 1); // scale.get_units () returns a float Serial.print (“kg”); // You can change this to kg but you’ll need to refactor the calibration_factor Serial.println ();} Documentation and useful links HX711 Datasheet Examples