定制Raspberry Pi接口指南：硬件设计与实践

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"《Custom Raspberry Pi Interfaces》是一本专为学生和爱好者的Raspberry Pi硬件界面设计与构建指南。作者Warren Gay在这本书中深入讲解了如何在低成本的基础上，利用Raspberry Pi开发各种输入输出接口，扩展其周边设备选择。书中特别关注3.3伏Raspberry Pi系统与5伏设备的接口技术，包括了VGA LCD显示器、I2C LCD显示、ADC（模拟到数字转换）应用、DAC（数字到模拟转换）、旋转编码器的读取与控制、MC14490软件去抖动、GPIO和I2C外围设备编程、使用74HC165和74HC595等外部CMOS器件、MCP23017 I/O扩展器以及音乐播放器控制（MPD）硬件接口的构建。此外，读者还将学习如何通过硬件和软件方法处理按钮和开关的抖动问题，以及如何自定义键帽用于远程组合锁应用。书中详细介绍了各种技术实践，如读取和控制音量的电位器（potentiometers）、确定旋转编码器的步进、方向和速度，并提供了使用PCF8574芯片进行远程接口的方法。通过本书，读者将掌握如何利用Raspbian Linux进行12C通信，以及如何结合硬件和软件解决方案来实现精确的控制和测量。《Custom Raspberry Pi Interfaces》不仅适合初学者，也适合有经验的工程师，它提供了一个全面的平台，帮助读者提升嵌入式系统项目的硬件设计能力。无论是为了学习新技能，还是寻求创新项目中的定制解决方案，这本书都将是不可或缺的参考资料。"

Chapter 1 ■ IntroduCtIon

Chapter 12 brings many of the presented topics together in an embedded

application. In this project, a hardware rotary control is used in conjunction with an

MPD to select music or Internet radio stations. A potentiometer feeds volume control

information for instant digital volume adjustment. An embedded application normally

runs headless, so an economical 16×2 LCD is used to round out this demonstration.

Chapter 13 wraps up the book with one more interface—the keypad. In this chapter,

a PCF8574 in dual inline package (DIP) form is used to create a remote keypad using

the I2C bus. The software application demonstrates a combination lock. The I2C bus

permits the keypad to exist some distance away from the Raspberry Pi but using only a

four-wire ribbon cable. The ribbon cable carries two lines for power and two more for I2C

communication. This is also an ideal arrangement for robotics.

Raspberry Pi 3 and Zero

The two recent developments are the Raspberry Pi Zero and the Raspberry Pi 3. You

could say these models are at opposite ends of the spectrum. The Zero is in high demand,

mainly because of its killer price of $5. The Pi 3, on the other hand, has killer performance

for the price.

This book is generally neutral about what Pi you choose to apply. The book was

developed using a Raspberry Pi 3, but except for performance differences, all examples

should work for all models.

Why GPIO Is Important

One of the keys to the success of the Raspberry Pi is a design that offers GPIO interfaces.

In the PC era, people had to attach their home-brewed hardware through the PC’s printer

parallel interface or work with the more cumbersome RS-232 interface. With the Pi,

you have access to serial data, a clock, I2C, serial peripheral interface (SPI), pulse width

modulation (PWM), and general I/O signaling. This arrangement is far more capable and

opens a world of options to the Pi user.

What to Purchase

In addition to the basics necessary to run your Raspberry Pi, you’ll need to acquire the

following items for the chapter experiments. Also listed are the specific chapters they

apply to.

• Breadboard

• Plenty of Dupont wires (for breadboarding)

• Pi Cobbler (GPIO to breadboard)

• 74LS04 (Chapter 2)

• 74LVC244 (Chapter 2)

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定制Raspberry Pi接口指南：硬件设计与实践

the difference between Raspberry pi and Raspberry pi pico

sudo apt update出现E: Repository 'http://raspbian.raspberrypi.org/raspbian buster InRelease' changed its 'Suite' value from 'stable' to 'oldstable'

deb http://mirrors.tuna.tsinghua.edu.cn/raspberrypi/ buster main ui还是deb http://mirrors.tuna.tsinghua.edu.cn/raspberrypi/ buster main

不同的raspberry pi 3b

deb https://mirrors.tuna.tsinghua.edu.cn/raspberrypi/ buster main ui什么意思

无法下载 http://raspbian.raspberrypi.org/raspbian/pool/main/libp/libpcap/libpcap0.8_1.8.1-6_armhf.deb 404 Not Found [IP: 2a00:1098:0:80:1000:75:0:3 80] E: 无法下载 http://raspbian.raspberrypi.org/raspbian/pool/main/t/tcpdump/tcpdump_4.9.3-1~deb10u1_armhf.deb 40

Raspberry Pi硬件介绍和开发

请向我展示几种Raspberry Pi Pico项目案例链接

Raspberry Pi开发板的优缺点以及价格

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