Load Cell Adc Arduino

You have created your first digital scale with arduino and hx711 adc weight sensor module.

Load cell adc arduino.

For a 1kg load cell. This allows the arduino to resolve weight mass changes down to the range of the load cell typically 500g 1kg 5kg or more divided by half the bit depth 2 23. In this arduino tutorial of hx711 load cell amplifier interface. 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.

Common load cells have four wire to connect the hx711 to a. That s exactly what the hx711 board does. Vdd is the digital supply voltage used to set the logic level. Picture 1 shows the connected and powered up project.

The grove adc for load cell hx711 is a 24 bit a d converter designed specifically for the load cell it s quite easy to build your arduino weight sensor system with this module. Vcc is the analog voltage to power the load cell. If you open the serial terminal in the arduino ide or visuino and there is no weight on the load cell you will see. We are interfacing 40kg load cell to the arduino using hx711 load cell amplifier module.

A 24 bit analog to digital converter called the hx711 converts the small changes in strain from the load cell into 24 bit changes in voltage arduino 0 5v. Once the load cell is is hooked up to the amplifier you can hook up vdd vcc dat clk and gnd to a microcontroller such as a redboard or arduino board.