Catalog

One 、 Description of project

1.1 Project introduction

1.2 Work in groups

Two 、 Introduction to raspberry pie

2.1 About Raspberry Pi

2.2 Raspberry pie 4B Motherboard Introduction

2.3 Raspberry pie 4B Parts introduction

2.4 Effect after accessories are installed

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One 、 Description of project

1.1 Project introduction

Project name ： The second phase of raspberry pie promotion plan of School of software, Shandong University

Implementation time ：2022   year  2  month 24 Japan       to      2022   year  6  month  5  Japan

Project objectives ： Use raspberry pie 4B, Concatenate existing 7 An experimental course , The design and completion is about 30 A student experiment , Implement a new experimental platform , Improve students' programming ability .

Technical points ：JAVA/JavaSE、C Language 、Python、 Basic knowledge of computer system principle and code implementation .

1.2 Work in groups

Wang Zhangyi Pavilion ： group leader , person in charge , Design and compilation of computer system principle experiment .

Kong Shengqi ： Team members ,C Language experiment design and writing .

Tang yunsen ： Team members ,Python Experimental design and compilation .

Liang Fangyi ： Team members ,JAVA / JavaSE Experimental design and compilation .

Two 、 Introduction to raspberry pie

2.1 About Raspberry Pi

Raspberry pie （Raspberry Pi） It's based on ARM The motherboard of the microcomputer , The size is only the size of a credit card , Designed for students' Programming Education ,“ Though sparrows are small , Five zang organs ”, video 、 Audio and other functions are available , You can connect raspberry pie to the TV 、 Monitor 、 Keyboard, mouse and other devices .

Raspberry Pi The foundation is committed to bringing digital creativity to all people around the world , So that they can understand and shape our growing digital world , Can solve the problems they care about , And enrich yourself to get a future job .

They offer low cost 、 High performance computers , People can use it to learn , Problem solving and entertainment .Raspberry Pi Provides opportunities for expansion and Education , Help more people acquire computing and digital creativity . They develop free resources , Help people understand computers and how to do things with computers , And train educators to guide others to learn .

Therefore, the purpose of this project is , Use raspberry pie 4B, Learning to program , The design and completion is about 30 A student experiment , Implement a new programming platform .

2.2 Raspberry pie 4B Motherboard Introduction

1：SOC chip

Raspberry pie BCM2711 Chip as SOC chip , The chip is integrated with CPU、GPU、DSP And SDRAM Memory, etc. , among CPU and GPU Shared memory , You can manually modify the memory ratio in the system .4 Generation raspberry pie makes memory optional .

2： Ethernet interface

The Ethernet interface allows raspberry pie to connect to the computer network in a wired way , This allows us to easily access the Internet , Or log in remotely to raspberry pie .

3：USB Interface

Universal serial bus （Universal Serial Bus, abbreviation USB） Interface is the most common interface on a computer , You can use it to connect the keyboard 、 mouse 、U disc 、 Wireless network card and other devices .

4：HDMI Interface

Hd multimedia interface （High Definition Multimedia Interface,HDMI） It's a fully digital video and sound transmission interface , Used to transmit uncompressed audio and video signals . It is connected to the equipment equipped with HDMI Interface display （ Or TV ） On , Can display the contents of raspberry pie .

notes ： Raspberry pie 4B It uses microHDMI Interface , So we need to use microHDMI turn HDMI Wire connection

5： Audio and composite video interface

Audio interface （3.5mm Headphone jack ） It's not used in HDMI When connecting , Standards can be used 3.5mm The speaker or headphone of the headphone jack plays audio .

6：DSI Display interface

Can be LCD Connect the monitor to the raspberry pie , Generally used for embedded product development . Usually ,HDMI The interface has been able to meet the requirements .

7：CSI Camera interface

utilize CSI The interface can connect... Through a flat cable CSI The camera is connected to raspberry pie , Easy video recording and image shooting .

8： Universal I / O interface （General Purpose Input Output,GPIO）

Universal I / O interface （General Purpose Input Output,GPIO） The raspberry pie motherboard is designed as a slot with two rows of pins .GPIO It can be used to connect various peripheral electronic devices and sensors , By input / Output level signal , To control or monitor these devices .

9：SD Card slot

SD The card slot is located on the back of the raspberry pie motherboard .SD/MicroSD The card is a necessary storage part for raspberry pie , Used to install the operating system and store data .

10：Type-c Power supply interface

Pype-c Power supply interface is one of the main power supply modes of raspberry pie , Rated voltage 5V.

11： Power over Ethernet （PoE） Interface

Active Ethernet (Power Over Ethernet, PoE) It refers to a technology of power transmission using Ethernet .

2.3 Raspberry pie 4B Parts introduction

1：SD card

This experiment uses SD Card as 8G The capacity of microSD.

2： Charging line

Raspberry pie 4B The power on display with switch is used Type-c Charging line .

3： Charging head

The charging head parameters are 5V/3A, Too much or too little current will affect the stability .

4： Fan

The fan is connected to the general input and output interface , Heat dissipation .

5： Shell

Prevent other objects from touching the raspberry pie and short circuiting its motherboard .

6：HDMI Line

HDMI The cable is used to connect the monitor to the raspberry pie .

7： mouse 、 keyboard

2.4 Effect after accessories are installed