Weight Sensor Arduino

Learn how to build a weight measuring system with an arduino hx711 and a load cell.

Weight sensor arduino.

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. We have seen weight machines at many shops where machine displays the weight just by placing any item on the weighing platform. Designed for weigh scales and industrial control applications to interface directly with a bridge sensor. Grams kg or pounds.

Using a load cell or weight sensor you can add this capability to your arduino projects. With excitation on the bridge the change in resistance is proportional to voltage. The project shows 1k resistors to show what s going on behind the scenes on the load sensor. 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.

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. So here we are building the same weighing machine by using arduino and load cells having capacity of measuring. A bar load cell contains two strain gauge connected in a wheatstone brigde. 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.

The only electronics you need for this are the arduino the load cells and the hx711. Today we are going to measure the weight by interfacing load cell and hx711 weight sensor with arduino. When a weight is on the load cell the strain gauges change resistance. It is specially designed for high precision electronic scale.

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.