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Hello to everyone, today I am here to show you a very insteresting project that I was working on for a while, it consists on a digital scale using the ESP-12S microcontroller plus a load cell and it HX711 wheatstone bridge to i2c converter, it is capable to measure weight precisely in the spectrum of grams, the sensor I am using is limited to 5Kg but you can use one for smaller or bigger weights.

As you can noticed, I am using the ESP8266 so it has WiFi capabilities that let me in the future send the measure data to the cloud.

The code can be modified to allow the scale to count objects, calculate liquid volume or what you imagine to do with force measuring.

This project may seem difficult or very complex, but it is definitely not completely, since you will have all the guidance for the construction, it was difficult for me to design it to make life a little easier for you. Any conceptual doubt, you are free to ask it without problems.

You should have an understanding of:
3D Printing (Optional for the case).
Arduino programming (I give you the code).
Soldering through hole components.

The Electronics discrete components as resistors and transistors will be attached in a BOM file attached here.

Materials to build it without PCB:

- ESP8266.
- OLED 1.3” i2C display.
- Load Cell (ej 5kg) with Hx711 ADC to i2C
- 3D Printer
- Wires

Materials to build it wit custom PCB:

- Custom JLCPCB PCBA order.
- Gerber File, BOM File, Pick & Place File (Free, just put 0 in the charge box).
- 3D Parts STL.
- OLED 1.3” i2C display.
- Load Cell (ej 5kg) with Hx711 ADC to i2C
- 3D Printer
- Wires”

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