The only electronics you need for this are the arduino the load cells and the hx711.
Weight sensor arduino.
It is specially designed for high precision electronic scale.
The project shows 1k resistors to show what s going on behind the scenes on the load sensor.
A bar load cell contains two strain gauge connected in a wheatstone brigde.
This arduino weight sensor is able to detect 1kg weight.
Learn how to build a weight measuring system with an arduino hx711 and a load cell.
Makerhawk digital load cell weight sensor hx711 ad converter breakout module 5kg portable electronic kitchen scale for arduino scale 4 7 out of 5 stars 17 12 99 12.
Arduino weight sensor a digital weight sensor using an arduino bar load cell and hx711 24 bit adc.
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.
When a weight is on the load cell the strain gauges change resistance.
Designed for weigh scales and industrial control applications to interface directly with a bridge sensor.
The load sensor is created using a strain gauge which is technically two resistors where one resistor changes with the amount of strain put on the gauge.
Today we are going to measure the weight by interfacing load cell and hx711 weight sensor with arduino.
I need a weight sensor or a pressure sensor that is flat in between 2 to 3 5 squared and there will be roughly a quarter of a pound on the sensor to begin with and needs to be able to sense if anything greater than a quarter of a pound is placed on the sensor.
It based on hx711 a precision 24 bit analog to digital converter designed for weight scale and industrial control applications to interface directly with a bridge sensor.
With excitation on the bridge the change in resistance is proportional to voltage.
Grams kg or pounds.
Using a load cell or weight sensor you can add this capability to your arduino projects.