Next we will explore calibration and test the load cell as a weighing scale.
Load cell calibration arduino.
Arduino as load cell amplifier by christian liljedahl christian liljedahl dk load cells are linear.
To do this upload the following code on your arduino board.
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.
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.
To use a load cell first you need to calibrate it.
Using a load cell or weight sensor you can add this capability to your arduino projects.
Arduino forum using arduino project guidance load cell.
Grams kg or pounds.
Now that you have your load cell amplifier and microcontroller hooked up you can add your code and start calibrating your setup.
Wait until the reading message is displayed on the serial monitor and then place a specified weight item on the load cell.
So once you have established two data pairs you can interpolate the rest.
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.
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.
In this arduino tutorial of hx711 load cell amplifier interface.
The hx711 is easily wired to the arduino using any two digital or analog pins.
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.
In this example a 10 kg.
We are interfacing 40kg load cell to the arduino using hx711 load cell amplifier module.
