Load Cell Calibration Arduino

I have two 3 wired load cells white red black and i m using them to create a 100 kg scale using hx711 but the connections and the coding given in all the sites are not giving the expected results instead they are printing random values.

Load cell calibration arduino.

Next we will explore calibration and test the load cell as a weighing scale. In this example a 10 kg. We are interfacing 40kg load cell to the arduino using hx711 load cell amplifier module. In this tutorial we will see how to connect calibrate and display the weight on a small oled display and by using a rotary encoder we will be able to change the units from.

Once you have calculated your calibration factor of your load cell set up you can move on to other code such as the simple scale output example code sparkfun hx711 example ino. Arduino as load cell amplifier by christian liljedahl christian liljedahl dk load cells are linear. Wait until the reading message is displayed on the serial monitor and then place a specified weight item on the load cell. Arduino hx711 and load cell in this tutorial you will learn how to use a 5kg load cell with hx711 and arduino uno or mega in this tutorial you will also learn how to calibrate your load cell or strain gauge circuit diagram soldering programming and practical implementation.

Grams kg or pounds. The hx711 is easily wired to the arduino using any two digital or analog pins. To use a load cell first you need to calibrate it.

So once you have established two data pairs you can interpolate the rest. Hx711 is a precision 24 bit analogto digital converter adc designed for weigh scales and industrial control applications to interface directly with a bridge sensor. To do this upload the following code on your arduino board. Upload this sketch to your arduino board you need two loads of well know weight.

Now that you have your load cell amplifier and microcontroller hooked up you can add your code and start calibrating your setup. The load cell must also be accurately wired to the hx711 to ensure that the appropriate strain gauge leads are used to approximate the weight given by the load cell.