Load Cell Adc Arduino

In this arduino tutorial of hx711 load cell amplifier interface.

Load cell adc arduino.

Vcc is the analog voltage to power the load cell. We are interfacing 40kg load cell to the arduino using hx711 load cell amplifier module. That s exactly what the hx711 board does. The video shows the running project and the serial terminal as different weights are placed on the load cell.

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. 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. For a 1kg load cell. Common load cells have four wire to connect the hx711 to a.

The changes in electrical resistance provided by the load cell need to be amplified so that they can be read by an arduino. Vdd is the digital supply voltage used to set the logic level. 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. 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.

Picture 1 shows the connected and powered up project. If you open the serial terminal in the arduino ide or visuino and there is no weight on the load cell you will see.