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PROJECT DESCRIPTION

The aim of this project is to develop a precise weight measuring kit using ADC. It can be used as a stamp-value calculator device for the postal operations that are carried out in a post office. There is a need for precise weighing scale to measure small weight in grams and display it. This concept can be achieved by an electronic weighing machine.

This system is built using an 8051 microcontroller, which uses weight sensor by a spring loaded variable resistor to determine the weight of a particular letter or object placed on it. This data is processed through an ADC which is interfaced with the microcontroller to generate an appropriate display on an LCD – both in terms of weight and its corresponding stamp value required.

This project can be enhanced by integrating a mini printer with this system, which can be used for printing the value of the stamp for franking machines. It can also be interfaced with a keypad and an EEPROM to store price details corresponding to its weight.

PROJECT HIGHLIGHTS
Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Pre-programmed Microcontroller.
Call/mail for Tech Support from 10 am - 7 pm.
Can be Customized for Arduino, Raspberry Pi, PIC
BLOCK DIAGRAM
Precise Weight Measurement using ADC
Hardware Requirements
  • Transformer
  • Bridge Rectifier
  • Regulator
  • 8051 series Microcontroller
  • LCD
  • ADC
  • Potentiometer
Software Requirements
  • Keil compiler
  • Language: Embedded C or Assembly.
Q & A
Q:  Which microcontroller is used in this project?
A:  The microcontroller used in this project is a 40 pin IC from 8051 family.
Q:  Can I measure weight of any letter, post in grams directly?
A:  Yes you can measure the weight of any letter.
Q:  Will I see the scale arrangement on the kit?
A:  Please watch the video for an alternate arrangement to reduce cost.
Q:  Is it possible to feed/set the price per gram as per requirement?
A:  No, it is pre-programmed for fixed price only.
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