¡Esta es una balanza de cocina de 5 kg, creada con Arduino Uno!

Puedes elegir la plataforma que quieras, pero yo prefiero Arduino:

Arduino Uno:https://www.banggood.com/it/Wholesale-Arduino-Compatible-R3-UNO-ATmega16U2-AVR-USB-Board-p-68537.html?rmmds=search

Arduino Nano:https://www.banggood.com/it/ATmega328P-Arduino-Compatible-Nano-V3-Improved-Version-With-USB-Cable-p-933647.html?rmmds=search

Ahora los componentes electrónicos:

Celda de carga de 5KG:https://www.banggood.com/it/YZC-133-5kg-Kitchen-Scale-Electronic-Load-Cell-Weighing-Sensor-p-982666.html?rmmds=search

Decodificador de célula de carga HX711:https://www.banggood.com/it/HX711-Weighing-Pressure-Sensor-24-Bit-Precision-AD-Module-For-Arduino-p-918228.html?rmmds=search

Bibliotecas HX711:
IDE de Arduino:https://www.arduino.cc/

Pero botones, resistencias y algunos cables:https://www.banggood.com/it/Electronic-Parts-Component-Resistors-Switch-Button-Kit-For-Arduino-p-967062.html?rmmds=detail-left-hotproducts

Estuche de la batería:https://www.banggood.com/it/Wholesale-Plastic-Battery-Storage-Case-Box-Holder-For-4-x-18650-Battery-p-36859.html?rmmds=search

Pantalla LCD i2c:https://www.banggood.com/it/IIC-I2C-1602-Blue-Backlight-LCD-Display-Module-For-Arduino-p-950726.html?rmmds=search

Diagrama eléctrico:https://drive.google.com/open?id=1pWG-UBroEXAjUhJkHrtLl0QdvafI_0rB
¡Código pronto :) disfruten!