Poor students can also play raspberry pie

A poor man's ambition is not short , Poor students can also play with raspberry pie

I am committed to popularizing the frontier technology of artificial intelligence to the public in a language that human beings can understand, and helping beginners quickly start to develop practical applications . At present, it is making 《 A video tutorial on artificial intelligence for speaking human words 》、《 Zero basic introduction raspberry pie interesting programming 》 Wait for video tutorials .

Must have items

Essential items are essential parts to realize the core functions of raspberry pie . You can buy all the items in the following essential column in this basic package of essential items for a treasure search raspberry pie , choice “RS-3B+ Base Kit ”, common 365 element .

1. Raspberry pie 3B+ a main board

Raspberry pie motherboard ： Recommend buying 3B+, Buying separately requires 230 element .3B+ yes 2018 year 5 The new raspberry pie motherboard released in May , Performance compared to the previous generation 3B The motherboard is higher , And it's only better than 3B How much is it . There is almost no difference in appearance , You can use the same shell . Both the Chinese version and the British version are OK , Generally, the Chinese version will be a few yuan cheaper .

2. The heat sink attached to the motherboard chip

The heat sink attached to the motherboard ：3B+ The motherboard CPU With cooling shell , Only two heat sinks are needed , They are respectively pasted on the network card chip and the memory chip on the back of the motherboard .3B The motherboard CPU No built-in cooling shell , Three heat sinks are required , Posted on CPU、 The network card chip and the memory chip on the back of the motherboard . Generally, when buying the motherboard, the seller will give a bonus .

3. The shell of the motherboard

The shell of the motherboard ： Red and white official shell of raspberry pie is recommended , Beautiful and generous , Easy to assemble . You can also buy acrylic transparent shell on Taobao 、 Transparent plastic shell 、 Metal shell 、3D Printing case, etc . Taobao Search raspberry pie official shell 、 Raspberry pie shell can be found , from 10 Yuan to 30 yuan .

Extended reading ： Various raspberry pie shells for foreign players （ The first is the official shell ）

4.microSD card

microSD card ： Also called TF card 、SD Little card , Recommended 16G Storage space Class10 The above microSD card , such as Kingston Of 16G Card affinity test is easy to use . Tell the seller about the bonus USB Card reader .

5.microSD Card reader

microSD Card reader ： Usually in the purchase microSD The seller will give the card as a gift , Include USB Readers and SD Card reader , take microSD The card is stuck in USB After the card reader , You can plug it into the computer USB As U Disk usage . take microSD The card is stuck in SD After the card reader , You can plug it into the computer SD Card slot as SD Large truck use . You can't find it on Taobao 4 You can buy one for yuan microSD Card USB Card reader . General electronic accessories stores also sell .

6. Power plug and power cord

Power plug and power cord ： In fact, you can use an ordinary Android mobile phone charger . You can also buy an official raspberry pie power supply with a switch button , Provide 5V、2.5A Power supply . But in fact, ordinary Android mobile phone charger can be used , You can also use mobile power when you go out .

7.HDMI Line

HDMI Line ： There are two ends of a stick HDMI Male's thread , For connecting raspberry pie to the display .

Optional items

The Flying Hamster ： Wireless keyboard and mouse two in one

The Flying Hamster ： The author recommends buying ,30 yuan . Also called wireless keyboard and mouse , Integrate keyboard and mouse into palm device , Operate the mouse through the touch pad , It is very convenient . It is especially suitable for operating on a large screen , Or operate raspberry pie as a remote control （ Like raspberry pie Kodi Open source operating system to make a smart TV set-top box ）.

Raspberry pie official camera

Raspberry pie official camera ： The author recommends buying ,40 yuan . Raspberry pie is officially recommended , By China optical lens company Sunny（ Shun Yu ） production ,500 Mega pixels . This camera is connected to the raspberry pie motherboard through a flat cable CSI On the interface , It can be used as a webcam 、 Home Security 、 Video capture work such as dash cam , It can also be used. OpenCV and SimpleCV Realize rich machine vision applications （ Face recognition 、 edge detection 、 Color segmentation 、 Object recognition 、 Handwritten font recognition 、 QR code recognition 、 Lane detection 、 Motion detection ）, For more cases, please pay attention to the following chapters of this tutorial . In addition to the official Cameras , You can also buy a wide-angle camera according to your project needs 、 Infrared night vision camera 、USB Cameras, etc .

Sensor kit

If you have mastered the basic usage of raspberry pie , be familiar with Arduino、Scratch, Interested in electronic production , There are also great gods around who can take you to do , Then you can buy this sensor kit , It contains temperature and humidity 、 pressure 、 ultrasonic 、 flame 、 voice 、 shock 、 The acceleration 、 gyroscope 、 Infrared obstacle avoidance 、 Tilt switch 、 Tracking sensors and other electronic components . But based on the author's observation of the people around him , After most people buy this kit, they let these babies eat ashes in the cabinet .

Raspberry pie is, after all Arduino Dissimilarity , If you want to devote yourself to electronic production , There's no need for raspberry pie , With normal Arduino That's all right. . The fun of raspberry pie is to treat it as a real computer Linux Development and network development , You can also use it GPIO Interface and expansion board play with these sensors , But I always feel that I am overqualified .

display

display ： The author does not recommend buying , Here's why ：

· You have already bought the necessary items HDMI Line , It can be used to connect raspberry pie to the common display screen in life , Such as classroom projector 、 Home TV 、 Hotel TV 、 graphoscope , A large screen in a conference room or a research group , There is no need to buy a separate display .

· After the raspberry pie is turned on, you can log in to the raspberry pie desktop through the remote desktop software on your mobile phone and laptop , It is equivalent to using mobile phones and laptops as display screens .

· The raspberry pie display on the market is expensive , Some are even more expensive than motherboards , The display effect is far less than our own laptop , Some so-called touch-screen displays are actually chicken ribs , We have to face many problems such as driver incompatibility ; Fourth, it is difficult to install the shell after adding the display screen , Both the motherboard and the screen should be exposed .

therefore , The author does not recommend buying a display screen .