Picture 1 shows the connected and powered up project.
Load cell adc arduino.
Vdd is the digital supply voltage used to set the logic level.
If you open the serial terminal in the arduino ide or visuino and there is no weight on the load cell you will see.
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.
You have created your first digital scale with arduino and hx711 adc weight sensor module.
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.
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.
The video shows the running project and the serial terminal as different weights are placed on the load cell.
It reads the information from the load cell amplifies the signals and then sends it to the arduino for processing.
For a 1kg load cell.
In this arduino tutorial of hx711 load cell amplifier interface.
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.
That s exactly what the hx711 board does.
Vcc is the analog voltage to power the load cell.
Common load cells have four wire to connect the hx711 to a.