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tags: HACK a nice day
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# Raspberry Pi Documentation 導讀

* 文件: https://www.raspberrypi.org/documentation/
* 活動: https://fb.me/e/29QwTGdJC
* 社團: https://www.facebook.com/groups/hackanicedays

## Setup / Quickstart

* SD card
* 8GB class 4 or class 10
* NOOBS
* Raspberry Pi OS
* HDMI cable
* Keyboard and mouse
* raspi-config
* Power supply
* USB Micro [models pre 4B]
* USB Type-C [model 4B]
* 3A at 5V for the Model 4B
* 2A at 5V for the Model 3B and 3B+
* 700mA at 5V for the earlier

### SD cards

* SD card size (capacity)
* with desktop and recommended software (Full)
* via NOOBS the minimum card size is 16GB
* the minimum card size is 8GB
* Lite image installations
* the minimum card size is 4GB
* [>64GB card](https://www.raspberrypi.org/documentation/installation/sdxc_formatting.md)
* SD card class
* class 4 card will be able to write at 4MB/s
* class 10 should be able to attain 10 MB/s
* often this write speed is achieved at the cost of read speed and increased seek times (透過犧牲讀取速度來增加搜尋速度來達到這種寫入速度)
* Troubleshooting
* to save money, USB cables have as little copper in them as possible, and as much as 1V (or 1W) can be lost over the length of the cable
* 關機指令 `sudo halt`

選擇

* class 4/10 32GB SD card
* 5V 3A power cube
* type-C/ micro USB cable

## Installation

* 安裝需要的事情
* format SD card
* {OS image} == 寫入工具 ==> {SD card}
* Raspberry Pi Imager
* 省去 `取得 {OS image}` 的動作
* NOOBS (New Out Of Box Software)
* 省去 `{OS image} == 寫入工具 ==> {SD card}` 所有過程
* Format an SD card as FAT
* at least 16GB for Full Raspberry Pi OS
* How to format an SD card as FAT
* SD Memory Card Formatter

## Usage Guide

* Sonic Pi
* Terminal
* GPIO
* Kodi (XBMC)

## Configuration

* raspi-config
* `sudo raspi-config`
* Advanced Options
* Expand Filesystem
* NOOBS (expanded automatically)
* By default, the size of the Raspbian (舊系統) root file system is 2GB
* Interfacing Options
* SSH
* Localisation Options
* Time Zone
* Keyboard
* WLAN Country
* config.txt
* This is read by the GPU before the ARM CPU and Linux are initialised.
* TCP/IP networking
* dhcp
* static ip
* Wireless connectivity (pi 連 AP)
* Command line
* Headless setup
* Wireless access point (pi 自己當 AP)
* UART configuration
* Firmware warning icons
* LED warning flash codes
* Securing your Raspberry Pi
* password
* SSH
* The boot folder
* ssh or ssh.txt
* wpa_supplicant.conf

## Remote Access

* VNC
* SSH
* SCP
* Samba/CIFS

Samba 安裝 & 設定

$ sudo apt install samba samba-common-bin

修改 /etc/samba/smb.conf

usershare allow guests = no

[pi]
   path = /home/pi
   guest ok = no
   read only = no
   writable = yes

$ sudo pdbedit -a -u pi
$ sudo systemctl restart smbd.service

## Linux

(真正要學習的地方)

* Filesystem
* Home
* Whole File system
* Usage
* Commands
* Text editors
* Root
* Scripting
* Cron / Crontab
* .bashrc and .bash_aliases
* systemd
* rc.local
* Software
* APT

## Raspberry Pi OS

* OMXPlayer

## Hardware

* Raspberry Pi
* Industrial use
* Raspberry Pi Pico

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