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When it comes to accurately measuring weight or force in your electronic projects, using a load cell can be the perfect solution. Load cells are transducers that are used to convert a force into an electrical signal, making them ideal for applications such as weighing scales, force measurement devices, and even in industrial automation.
One of the most commonly used load cells is the 100kg load cell, which can accurately measure weights up to 100kg. In this article, we will provide you with a complete guide on how to use a 100kg load cell with an Arduino microcontroller for your projects.
Connecting the Load Cell to Arduino:
Before you can start using your 100kg load cell with Arduino, you will need to connect it properly. The load cell typically has four wires – red, black, green, and white. The red and black wires are for power, while the green and white wires are for signal output.
To connect the load cell to Arduino, you will need an HX711 amplifier module, which is used to amplify the small electrical signals from the load cell. Connect the red wire of the load cell to the E+ pin of the HX711 module, the black wire to the E- pin, the white wire to the A+ pin, and the green wire to the A- pin.
Next, connect the VCC pin of the HX711 module to the 5V pin on the Arduino, the GND pin to the GND pin on the Arduino, the DT pin to digital pin 2, and the SCK pin to digital pin 3 on the Arduino.
Coding for Arduino:
To read the weight data from the load cell using Arduino, you will need to write a simple code. You can use the HX711 library for Arduino to make it easier. In the code, you will need to calibrate the load cell by setting the zero offset and the calibration factor.
Here is a basic example code to read the weight data from the load cell:
#include “HX711.h”
#define DOUT 2
#define SCK 3
HX711 scale(DOUT, SCK);
void setup() {
Serial.begin(9600);
scale.set_scale();
scale.tare();
}
void loop() {
float weight = scale.get_units(30);
Serial.print(“Weight: “);
Serial.println(weight);
delay(1000);
}
After uploading the code to your Arduino board, open the Serial Monitor to see the weight data being displayed in kilograms.
Using the Load Cell in Projects:
Now that you have successfully connected and programmed your 100kg load cell with Arduino, you can start using it in your electronic projects. Whether you are building a smart weighing scale, a force measurement device, or an industrial automation system, the load cell will provide accurate and reliable weight measurements.
In conclusion, using a 100kg load cell with Arduino is a simple and effective way to measure weights in your projects. By following the steps mentioned in this guide, you will be able to connect the load cell, write the code, and start using it in no time. Happy experimenting!
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