So once you have established two data pairs you can interpolate the rest.
Mini load cell arduino.
Mount the load cell.
The load should show properly.
Upload this sketch to your arduino board you need two loads of well know weight.
Wire the load cells and hx711.
See the wiring diagram for how to connect the load cells hx711 and arduino.
Reload the code to the arduino board and retest your known loads.
In this example a 10 kg.
The aluminum load cell should have 4 tapped.
Wait for tare to finish and arduino to print out.
In this project we will be interfacing hx711 load cell amplifier with arduino and 16 2 lcd for designing arduino weighing machine using load cell hx711.
Next try an unknown load.
Arduino as load cell amplifier by christian liljedahl christian liljedahl dk load cells are linear.
Add calibrated mass equal to the variable y1 value above 20g in my case 5.
Load the above code open the serial monitor and take measurements of two known loads.
Process for using the weighing program above.
Mini load cell 500g straight bar tal221 pdf mini load cell 100g straight bar tal221 pdf for more information about setting up load cells and how to integrate them into your next project check out our hx711 hookup guide.
It is specially made for amplifying signals from cells and reporting them to another microcontroller.
We will be using a simple arduino library to communicate with the hx711 that provides a calibration and tare reset feature to easily determine the weight of an object.
The white connectors on the board are 4 pin molex connectors with 0 1 spacing.
First we are going to mount the load cell.
Open serial port 3.
Arduino scale with 5kg load cell and hx711 amplifier step 1.
Wait for print out.
Restart program with nothing on the load cell platform 2.
On the opposite side you can see the connection for the load cell.
Add calibrated mass 4.
Data is extracted from a 24 bit adc on board the hx 711 ic.
Edit the values of areading aload breading and bload with those values.
Stacking the load cell shield the load cell shield uses analog pins a0 and a1 for strain 1 and strain 2 inputs respectively.
To connect the hx711 to the arduino you only need 2 pins clock and data.
