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Building a DIY weighing scale with a 200kg load cell and Arduino
In today’s world of technology and innovation, DIY projects have become increasingly popular among electronics enthusiasts. One such project that is gaining attention is building a DIY weighing scale with a 200kg load cell and Arduino.
Load cells are transducers that are used to convert force into an electrical signal. They are commonly used in weighing scales to measure weight accurately. The 200kg load cell is a reliable and durable sensor that can accurately measure weights up to 200kg.
To build a DIY weighing scale with a 200kg load cell and Arduino, you will need the following components:
1. 200kg load cell
2. HX711 amplifier module
3. Arduino board
4. LCD display
5. Breadboard and jumper wires
6. Power source
The first step in building the weighing scale is to connect the load cell to the HX711 amplifier module. The load cell will have four wires – red, black, white, and green. The red and black wires are for power supply (usually 5V) and ground, while the white and green wires are for signal output. Connect the red wire to VCC, the black wire to GND, the green wire to A- (negative) and the white wire to A+ (positive) on the HX711. With this setup, the load cell is now connected to the amplifier module.
Next, connect the HX711 module to the Arduino board. The HX711 has four pins – VCC, GND, DT (data), and SCK (clock). Connect the VCC pin to 5V on the Arduino, the GND pin to GND, the DT pin to digital pin 2, and the SCK pin to digital pin 3. This connection allows the Arduino to communicate with the HX711 module and read the weight data from the load cell.
Finally, connect the LCD display to the Arduino to display the weight readings. The LCD display will have pins for power, ground, data, and clock. Connect the power and ground pins to 5V and GND on the Arduino, and the data and clock pins to two other digital pins on the Arduino.
Once all the components are connected, upload the Arduino sketch code to read the weight data from the load cell and display it on the LCD display. The code will involve setting up the HX711 library, initializing the load cell, and reading the analog data from the load cell.
With the code uploaded and the connections made, your DIY weighing scale with a 200kg load cell and Arduino is now ready for use. Place an object on the load cell and see the weight displayed on the LCD screen accurately.
This project is a fun and educational way to learn about electronics, sensors, and programming. With a little time and effort, you can build your own weighing scale that can accurately measure weights up to 200kg. So, grab your tools and get started on this exciting DIY project today!
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