11 May 2024


Compression load cells are commonly used in various applications to measure force or weight accurately. These load cells can be interfaced with Arduino to provide real-time data and analysis for different projects. In this article, we will discuss how to interface a compression load cell with Arduino for the sharp electronics Pune.

Firstly, you will need the following components for this project:
1. Compression load cell
2. HX711 Load Cell Amplifier
3. Arduino Uno board
4. Breadboard and jumper wires

Step 1: Connect the Load Cell to HX711
Start by connecting the compression load cell to the HX711 Load Cell Amplifier. The load cell has four wires – red, black, green, and white. Connect the red and black wires to the E+ and E- pins of the HX711 amplifier, respectively. Connect the green and white wires to the A+ and A- pins of the amplifier.

Step 2: Connect HX711 to Arduino
Next, connect the HX711 amplifier to the Arduino Uno board. Connect the DT pin of the HX711 to pin D3 on the Arduino, and connect the SCK pin of the amplifier to pin D2 on the Arduino. Also, connect the VCC and GND pins of the amplifier to the 5V and GND pins on the Arduino.

Step 3: Install Required Libraries
To interface the load cell with Arduino, you will need to install the HX711 library. Open the Arduino IDE and go to Sketch -> Include Library -> Manage Libraries. Search for “HX711” and install the library.

Step 4: Write the Code
Now, it’s time to write the code for the Arduino. Here is a simple code snippet to read the data from the load cell and display it on the serial monitor:

#include “HX711.h”

#define DOUT 3
#define CLK 2

HX711 scale(DOUT, CLK);

void setup() {
Serial.begin(9600);
scale.set_scale();
scale.tare();
}

void loop() {
float weight = scale.get_units(10);
Serial.print(“Weight: “);
Serial.print(weight);
Serial.println(” kg”);
delay(1000);
}

Step 5: Upload the Code
Upload the code to the Arduino Uno board and open the serial monitor. You should see the weight data from the compression load cell being displayed on the monitor.

In conclusion, interfacing a compression load cell with Arduino is a simple and effective way to measure force or weight in various projects. By following the steps mentioned above, you can easily set up the system and start collecting data from the load cell. This project can be useful for the sharp electronics Pune to monitor and analyze different parameters in their applications.

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