Download>Category>Embedded Development>Others>Design of a new practical and low-cost electronic price-calculating scale system

pdf

Design of a new practical and low-cost electronic price-calculating scale system

2013-09-22
275.26KB
Points it Requires : 2

repReport

Document Introduction
You Might Like
Recommended Downloads

The design of practical low-cost electronic price-calculating scale system introduces a software and hardware design method of electronic price-calculating scale based on AT89S52 single-chip microcomputer. The system adopts dual-integral circuit to replace the expensive A/D chip as the data acquisition system, and uses a LM324 chip to design analog A/D to read the current voltage value of the battery when the machine is turned on and judge the low voltage. The system is composed of a full-bridge circuit composed of strain gauge sensors, which senses the weight of the material and converts it into a voltage that is linearly related to it. Then, it is processed through the dual-integral circuit and input into the AT89S52 single-chip microcomputer, and is displayed in real time through a 16-bit LCD liquid crystal. At the same time, the voice quotation circuit realizes the voice quotation of the unit price, total price and change. The hardware circuit of the electronic price-calculating scale includes the LCD driver chip HT1621B, low voltage detection circuit, voice driver circuit, etc., achieving the design purpose of efficient, reliable and accurate electronic price-calculating scale.

unfold

You Might Like

Uploader

: 电子爱好者IK

Recommended ContentMore

Open source project More

Popular Components

Searched by Users

Just Take a LookMore

Let you know about brushless DC motor
Power tools have evolved significantly over the past century. Today, they are cordless, lightweight, and battery-powered, making them a great addition to our lives. So what are the factors driving the
EETalk: What pitfalls have you encountered during PCB design?
Hello~ Everyone~ Let's chat together~ Recently, I saw several netizens in the forum asking questions about PCB design. Some of them encountered operation problems when using the software, and some sai
Harbin Institute of Technology and Harbin Engineering University are banned from using genuine MATLAB software. What do you think about this?
In recent days, teachers and students of Harbin Institute of Technology and Harbin Engineering University have been unable to use MATLAB. Some students of Harbin Institute of Technology said that they
How to design an RC oscillator circuit with an output frequency of 1k to 3.2MHz
How to design an RC oscillator circuit with an output frequency of 1k to 3.2MHz
Will power management integrated circuits (PMIC) be the mainstream direction in the future?
A flexible, streamlined programming flow enables designers to apply a single IC to a variety of use cases, helping manufacturers reduce time to market and bill of materials costs. Power management int
What is the minimum power consumption of the Zigbee module?
Summary of EMC principles for PCB design
TI UCC28782 makes a miniaturized adapter
What does N/A mean in TI chip manuals?
How non-isolated switching power supplies work

Trending Downloads

Trending ArticlesMore

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

About Us Customer Service Contact Information Datasheet Sitemap LatestNews

Room 1530, 15th Floor, Building B, No.18 Zhongguancun Street, Haidian District, Beijing, Postal Code: 100190 China Telephone: 008610 8235 0740

Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号京ICP备10001474号-1 电信业务审批[2006]字第258号函

京公网安备 11010802033920号

×