CN202563780U

CN202563780U - Singlechip experiment platform

Info

Publication number: CN202563780U
Application number: CN 201220224952
Authority: CN
Inventors: 蔡肯
Original assignee: Zhongkai University of Agriculture and Engineering
Current assignee: Zhongkai University of Agriculture and Engineering
Priority date: 2012-05-18
Filing date: 2012-05-18
Publication date: 2012-11-28
Anticipated expiration: 2022-05-18

Abstract

The utility model relates to a teaching instrument, especially a singlechip experiment platform. The intelligent LED lamp is composed of a single chip microcomputer, a reset circuit and a clock circuit, wherein the single chip microcomputer is further connected with a USB interface, liquid crystal, an I2C device, a buzzer, a wireless module, a temperature sensor, an infrared module, a key, an LED lamp and a power supply interface. The utility model has the characteristics of can directly get the electricity through the computer, 2.4GH wireless transmission ability, can burn in the body of the machine, debug, download application.

Description

The single chip computer experiment platform

Technical field

The utility model relates to instruments used for education, particularly a kind of single chip computer experiment platform.

Background technology

There is following defective in existing single chip computer experiment case:

1. must adopt electricity in addition and come to be the machine power supply;

2. do not possess the wireless transfer capability of 2.4GH;

3. must combine ability programming and debugging utility with the emulator of special use;

4. bulky;

5. can not directly download.

The utility model content

The purpose of the utility model is to provide a kind of multiple functional, convenient and practical single chip computer experiment platform.

The purpose of the utility model realizes through following approach: a kind of single chip computer experiment platform, and it connects reset circuit by single-chip microcomputer and clock circuit constitutes, and reset circuit is connected and composed by switch RST, capacitor C 3, resistance R 3, and clock circuit is connected and composed by capacitor C 1, capacitor C 2, crystal oscillator Yl; Single-chip microcomputer also is connected with USB interface, liquid crystal, I2C device, hummer; Wireless module, temperature sensor, infrared module; Button, LED lamp, power interface.

Preferred as further, storage chip is connected with single-chip microcomputer through the I2C device.

Preferred as further, described single-chip microcomputer model is STC89C52.

The utility model single chip computer experiment platform compared with prior art has following characteristics:

1) overcome the deficiency that existing single chip computer experiment case must be supplied power and download and separated, the utility model provides a kind of direct use computer USB interface to realize the single-chip microcomputer innovation experiment platform of directly supplying power and downloading;

2) add wireless communicaltion module access, expanded the application of this development board greatly, can help the student to carry out application and development, assessment, the test job of wireless technology better.

3) overcome the deficiency that existing single chip computer experiment case must combine ability programming and debugging utility with the emulator of special use, the utility model supports USB mouth or two kinds of modes of downloading of serial ports need not buy programmable device in addition.

4) overcome the bulky shortcoming of existing experimental box, this novel experiment porch volume has only 10cmx10cm, and is multiple functional.

Description of drawings

Below in conjunction with accompanying drawing the utility model is done further explain:

Fig. 1 is the utility model circuit structure block diagram;

Fig. 2 is the utility model circuit diagram.

Among the figure, single-chip microcomputer 1, reset circuit 2, power interface 3, USB interface 4, liquid crystal 5, I2C device 6, clock circuit 7, button 8, LED lamp 9, hummer 10, wireless module 11, temperature sensor 12, infrared module 13.

Embodiment

As shown in Figure 1, the utility model single chip computer experiment platform, it connects reset circuit 2 by single-chip microcomputer 1 and clock circuit 7 constitutes, and reset circuit 2 is connected and composed by switch RST, capacitor C 3, resistance R 3; Clock circuit 7 is connected and composed by capacitor C 1, capacitor C 2, crystal oscillator Yl, and single-chip microcomputer 1 also is connected with USB interface 4, liquid crystal 5, I2C device 6; Hummer 10, wireless module 11, temperature sensor 12, infrared module 13; Button 8, LED lamp 9, power interface 3.

As shown in Figure 2; USB interface 4 J2 in the such scheme are power supply interfaces that software program is downloaded mouth and circuit; It is changeed chips such as serial port chip PL2303HX and IN4148 and constitutes by USB; This interface can link to each other with the USB of PC through the USB line that is equipped with in addition, realizes the programming (download) of software program and the power supply of experiment porch.

The K switch ey1 of button 8, Key2 are as input equipment, in order to simulate the extraneous influence that changes single-chip microcomputer 1 control system.

Temperature sensor 12 is that DS18B20 chip U6 is connected with single-chip microcomputer through the 1-wire bus, can gather the temperature of external environment condition;

EEPROM storage chip U4 (AT24C02) is connected with single-chip microcomputer 1 through I2C device 6, and this chip can be used as the space of program and data storage;

Clock circuit 7 is to adopt DS1302 clock chip U14 to be connected with single-chip microcomputer through spi bus, utilize this chip can do a perpetual calendar electronic clock, and through reserve battery, never stops the time of can realizing;

Infrared module 13 is connected through the P3.2 pin of infrared integrated receiving chip U5 and single-chip microcomputer 1, and the interface that can be used as human-machine operation connects IR remote controller;

LED lamp 9 D5, D6 and current-limiting resistance R1 and R2 form 2 tunnel output;

Model is the liquid crystal 5 of U3 and the display circuit of resistance R 10 composition single-chip microcomputers 1, and this circuit can show two row, and 16 of every row amount to 32 any ASCII character characters, and its function is used a lot abundanter than charactron, and the quantity of information of demonstration is bigger;

Hummer 10 is by Q1, and LS1 and R9 form, and through linking to each other with the P2.0 interface of single-chip microcomputer 1, can realize the warning function of single-chip microcomputer 1, and the working method of this circuit is that the P2.0 pin output level of single-chip microcomputer 1 just can be opened hummer;

The interface P5 of wireless module 11 and the P0.1 of single-chip microcomputer 1, P0.2, P0.3; P0.4, P0.5, P3.3 links to each other; Wireless communication system be can develop, and wireless temperature collection, radio meter register, gate control system, sub-district call, industrial data acquisition system, VoIP directly can be applicable to.

Claims

1. single chip computer experiment platform, it connects reset circuit (2) and clock circuit (7) formation by single-chip microcomputer (1), and reset circuit (2) is connected and composed by switch RST, capacitor C 3, resistance R 3; Clock circuit (7) is connected and composed by capacitor C 1, capacitor C 2, crystal oscillator Yl, it is characterized in that: single-chip microcomputer (1) also is connected with USB interface (4), liquid crystal (5); I2C device (6), hummer (10), wireless module (11); Temperature sensor (12), infrared module (13), button (8); LED lamp (9), power interface (3).

2. single chip computer experiment platform as claimed in claim 1 is characterized in that: storage chip is connected with single-chip microcomputer (1) through I2C device (6).

3. single chip computer experiment platform as claimed in claim 1 is characterized in that: described single-chip microcomputer model is STC89C52.