个人资料
  • 博客访问:
正文

A Respberry Pi project

(2023-05-12 06:21:09) 下一个

This blog was published on 中坦 , not in 家坛last year.

This is a modified version.

Raspberry Pi is a very popular single board computer in hobby electronics. 它有26 GPIO(genaral purpose input output) pins, so you could make lots of projects.

https://en.wikipedia.org/wiki/Raspberry_Pi

我的这个project就是一个display panel,just like a computer monitor. 是用Raspberry Pi (around $50, 2GB (有4GB, 8GB version))做的.

https://www.amazon.com/Raspberry-Pi-4-4G-Model/dp/B081YD3VL5/ref=sr_1_3?crid=XLL6T0JA19ID&keywords=raspberry+%E7%9A%AE4&qid=1683893481&sprefix=raspberry%E7%9A%AE4%2Caps%2C82&sr=8-3

(several years ago, 8GB version was $80, I bought two, now it is doubled in price, so try to look around, find a cheap one befire buying).

It runs in Linus operating system, just like Windows。

https://www.raspberrypi.com/

 你只要加上keyboard,mouse,monitor,电源,再把网上的operating system download 到一个microUSB card 上 就可以当一个computer使了(board上有WiFi),而且还可以做一些小project.

Operating system could be download from:

https://www.raspberrypi.com/software/

For Linus operating system, the book by  Simon Monk, is well writen. I also have two other books from the same author.

 

Display panel 是用9个 64x64 RGB matrix display board组成,所以总的resolution是192x192 pixels). Its size is 57x57 cm。

You could use is as a dispaly. I used it on Christmas days. You could also send a picture of words in someone's birthday.

 

用这些command:

上面display上的英语是这样的commands( 总共4行字),从sudo 到 255,0,0 ( 255, 0, 0 是RGB color(从0到255). By changing  3 numbers, you could get diffent colors). Command你必须自己typing, 下一次你想type the same command, 你可按key board 上的向上的箭头,它在memory里:

它还可以显示:

或者JPGfiles:

 

用这个command:

它的背后是这样的(用了3天装好的, 买的铝棍,铝板,青铜板把9个小的board装成一个大的,大约$300):

单个RGB matrix board是这样的(这个是另一个 64x128 matrix board,不是上图上用的64x64), 下图是示意图:

反面:

这个192x192 matrix display board的电源是我用一个坏了的computer power supply改装的:

这个是 Raspberry Pi (底下的绿board)(左下插头是电源插头,右下插头是key board&hdmi monitor 插头), 上面3根ribbon cable是让display panel 显示用的:

Raspberry Pi的电源是这样的:

Linus 的operating system 的 window 是这样的:

Click on the Respberry Pi, 你会看到,像PC 一样:

Click on globe sign, 你可上网:

网上有许多怎么装Operating system的网页。

https://www.google.com/search?q=how+to+install+os+on+raspberry+pi&rlz=1C1IHCB_enUS722US729&oq=how+to+install+os+on+ra&aqs=chrome.0.0i20i263i512j69i57j0i512l5j0i20i263i512j0i22i30l2.21378j1j7&sourceid=chrome&ie=UTF-8

Raspberry Pi projects on youtube:

https://www.youtube.com/results?search_query=raspberry+pi+projects

 

原文:

https://blog.wenxuecity.com/blog/frontend.php?act=article&blogId=40376&date=202206&postId=5048

Have fun with Raspbery Pi!

谢谢观看。

[ 打印 ]
阅读 ()评论 (0)
评论
目前还没有任何评论
登录后才可评论.