Raspberry

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最大 TF 卡: https://elinux.org/RPi_SD_cards
 
最大 TF 卡: https://elinux.org/RPi_SD_cards
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http://www.waveshare.net/wiki/1.54inch_e-Paper_Module
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http://www.waveshare.net/wiki/1.54inch_e-Paper_Module_(C)
  
 
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<br><br>
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[[文件:Raspberry-pi-pinout.png  | 900px]]
 
[[文件:Raspberry-pi-pinout.png  | 900px]]
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[[文件:Rp23 pinout.png]]
  
 
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* https://makezine.com/projects/tutorial-raspberry-pi-gpio-pins-and-python/
 
* https://makezine.com/projects/tutorial-raspberry-pi-gpio-pins-and-python/
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* [https://zhuanlan.zhihu.com/p/40594358 树莓派的GPIO控制]
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* [http://webiopi.trouch.com/ WebIOPi] [[WebIOPi]]
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* [https://www.cnblogs.com/wangkangluo1/archive/2013/03/17/2964080.html 树莓派实现web控制GPIO教程]
  
 
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<br><br>
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   $ sudo apt-get install hostapd dnsmasq
 
   $ sudo apt-get install hostapd dnsmasq
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<br>
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== WiFi ==
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“Wlan0: Not associated”报错解决:
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如下命令 OK,则网卡驱动 OK:
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<source lang=bash>
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$ ifconfig wlan0
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$ ifconfig wlan0 up
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$ iwlist wlan0 scan | grep SSID
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</source>
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只需修改网络配置即可,增加一条网络凭条:
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<source lang=bash>
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$ wpa_passphrase  YOUR_ssid YOUR_password >> /etc/wpa_supplicant/wpa_supplicant.conf
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network={
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        ssid="ssid"
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        #psk="password"
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        psk=44116ea881531996d8a23af58b376d70f196057429c258f529577a26e727ec1b
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}
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要使配置生效,则需要重启 wpa_supplicant:
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<source lang=bash>
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$ killall wpa_supplicant
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$ wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf
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或者:
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$ sudo ifup wlan0
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</source>
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开机无法自动连 WiFi 则确认 /etc/network/interfaces 和 /etc/dhcpcd.conf:
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<source lang=bash>
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allow-hotplug wlan0
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iface wlan0 inet dhcp
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  wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
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</source>
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和 /etc/dhcpcd.conf:
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<source lang=bash>
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interface wlan0
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static routers=192.168.1.1 255.255.255.0
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static domain_name_servers=192.168.1.1
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</source>
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* https://shumeipai.nxez.com/2016/09/17/raspberry-pi-set-up-a-wireless-internet-access.html
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* https://www.cnblogs.com/lfri/p/11875527.html
  
 
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   -no-reboot -serial stdio
 
   -no-reboot -serial stdio
 
</source>
 
</source>
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<br>
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== Image ==
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=== Raspberry PI 3B ===
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* Raspbian-4.1
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* raspberrypi-jessie-WAZIUP-demo.dmg.zip
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* 2019-04-08-raspbian-stretch-lite.zip
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<br>
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=== Raspberry Model A/B ===
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* raspberrypi-jessie-WAZIUP-demo.dmg.zip (HomeAssist)
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<br>
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=== Notes ===
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;;Write image into SD card:
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<source lang=bash>
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$ sudo dd bs=1m if=2019-04-08-raspbian-stretch-lite.img of=/dev/rdisk2 conv=sync
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</source>
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;; Make SD card into a img file:
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<source lang=bash>
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$ dd if=/dev/mmc0 | gzip -9 > sd-all.img.gz
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$ gzip -dc /tmp/sd-all.img.gz | sudo dd of=/dev/mmc0
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</source>
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;;Mount the img:
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<source lang=bash>
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sudo apt-get install dosfstools dump parted kpartx
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sudo losetup /dev/loop0 2019-04-08-raspbian-stretch-lite.img
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mkdir -p /mnt/a/boot/
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mkdir -p /mnt/a/root/
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sudo kpartx -av /dev/loop0
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boot="/dev/mapper/loop0p6"
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root="/dev/mapper/loop0p7"
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sudo mount $boot /mnt/a/boot/
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sudo mount $root /mnt/a/root/
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sudo kpartx -d /dev/loop0
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sudo losetup -d /dev/loop0
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</source>
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<br>
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=== Backup the System into img ===
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<source lang=bash>
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#!/bin/sh
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sudo apt-get install -y dosfstools parted kpartx rsync
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df=`df -P | grep /dev/root | awk '{print $3}'`
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dr=`df -P | grep /dev/mmcblk0p1 | awk '{print $2}'`
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df=`echo $df $dr |awk '{print int(($1+$2)*1.2)}'`
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sudo dd if=/dev/zero of=raspberrypi.img bs=1K count=$df
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sudo parted raspberrypi.img --script -- mklabel msdos
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start=`sudo fdisk -l /dev/mmcblk0| awk 'NR==10 {print $2}'`
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start=`echo $start's'`
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end=`sudo fdisk -l /dev/mmcblk0| awk 'NR==10 {print $3}'`
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end2=$[end+1]
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end=`echo $end's'`
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end2=`echo $end2's'`
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sudo parted raspberrypi.img --script -- mkpart primary fat32 $start $end
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sudo parted raspberrypi.img --script -- mkpart primary ext4 $end2 -1
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loopdevice=`sudo losetup -f --show raspberrypi.img`
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device=`sudo kpartx -va $loopdevice | sed -E 's/.*(loop[0-9])p.*/\1/g' | head -1`
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device="/dev/mapper/${device}"
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partBoot="${device}p1"
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partRoot="${device}p2"
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sudo mkfs.vfat $partBoot
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sudo mkfs.ext4 $partRoot
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sudo mount -t vfat $partBoot /media
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sudo cp -rfp /boot/* /media/
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sudo umount /media
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sudo mount -t ext4 $partRoot /media/
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cd /media
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sudo rsync -aP --exclude="raspberrypi.img" --exclude=/media/* --exclude=/sys/* --exclude=/proc/*  --exclude=/tmp/* / ./
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# replace PARTUUID
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opartuuidb=`blkid -o export /dev/mmcblk0p1 | grep PARTUUID`
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opartuuidr=`blkid -o export /dev/mmcblk0p2 | grep PARTUUID`
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npartuuidb=`blkid -o export ${device}p1 | grep PARTUUID`
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npartuuidr=`blkid -o export ${device}p2 | grep PARTUUID`
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echo "BOOT uuid old=$opartuuidb -> new=$npartuuidb"
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echo "ROOT uuid old=$opartuuidr -> new=$npartuuidr"
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sudo sed -i "s/$opartuuidr/$npartuuidr/g" $dst_boot_path/cmdline.txt
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sudo sed -i "s/$opartuuidb/$npartuuidb/g" $dst_root_path/etc/fstab
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sudo sed -i "s/$opartuuidr/$npartuuidr/g" $dst_root_path/etc/fstab
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cd
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sudo umount /media
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sudo kpartx -d $loopdevice
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sudo losetup -d $loopdevice
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</source>
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<br><br>
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== config.txt ==
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* https://www.raspberrypi.org/documentation/configuration/config-txt/README.md
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* https://www.raspberrypi.org/documentation/configuration/config-txt/video.md
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<br>
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== Offical 7' touchscreen ==
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* https://maker-tutorials.com/en/official-raspberry-pi-7-touch-screen-lcd-display-assembly-guide-install-and-tips/
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<br>
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== Chromium Fullscreen ==
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  /usr/bin/chromium-browser --profile-directory=Default --app-id=dbnedbfkgoaehilakknipiknpolnbapd --start-fullscreen
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<br>
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== Preempt-RT ==
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* [http://www.frank-durr.de/?p=203 Raspberry Pi Going Realtime with RT Preempt]
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* [http://www.machinekit.io/docs/getting-started/install-rt-kernel-RPi2/ RT-PREEMPT realtime kernel (Raspberry Pi)]
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* [https://www.raspberrypi.org/forums/viewtopic.php?t=39951 CONFIG_PREEMPT_RT on Raspberry Pi]
  
 
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<br>

2020年1月20日 (一) 18:03的最后版本

目录

[编辑] 1 Overview

最大 TF 卡: https://elinux.org/RPi_SD_cards

http://www.waveshare.net/wiki/1.54inch_e-Paper_Module

http://www.waveshare.net/wiki/1.54inch_e-Paper_Module_(C)



[编辑] 2 Login

Username: pi
Password: raspberry


[编辑] 3 Pinout

[编辑] 3.1 Model A and B

Rasp-gpio-pins-1.jpg

Raspberry-1-gpio-led.png

Rasp-gpio-pins-2.png

Rasp-gpio-pins-3.png



[编辑] 3.2 Models A+, B+, PI 2 B, PI 3 B

Gpio-pins-pi2.jpg

Gpio-numbers-pi2.png

Physical-pin-numbers.png


Raspberry-pi-pinout.png


Rp23 pinout.png



[编辑] 4 Serial

[编辑] 4.1 Enable

/boot/cmdline.txt
 "console=serial0,115200" 

/boot/config.txt
enable_uart=1


[编辑] 4.2 Disable

 Remove  "console=serial0,115200"  from /boot/cmdline.txt


If you want to use the uart as IO device, add "enable_uart=1" into /boot/config.txt


Or you can do it by run "sudo raspi-config" , enter "Advanced Options" and then enter "Serial" ....


[编辑] 4.3 Connections

  • RASP_TXD --- HEX_TX
  • RASP_RXD --- HEX_RX


[编辑] 5 GPIO Control



[编辑] 6 Timezone

$ cat /etc/timezone
Etc/UTC
$ sudo echo "Asia/Shanghai" > /etc/timezone

add following into /etc/profile:

TZ=Asia/Shanghai
export TZ
 $ sudo reboot




[编辑] 7 Static IP

add following into /etc/dhcpcd.conf:

interface eth0
static ip_address=192.168.1.45/24
static routers=192.168.1.1
static domain_name_servers=192.168.1.1




[编辑] 8 ESP8266/ESP8089

Raspi-esp8089.png


Note that the CH_PD signal is connected to the ID_SD signal. This must be mapped as a GPIO (GPIO0) and switched to an output and driven low then switched to an input again before the driver is loaded in order to reset the module. This will be added in the near future in the driver.

https://github.com/al177/esp8089

https://hackaday.io/project/8678/instructions?page=1



[编辑] 9 WiFi access-point

 $ sudo apt-get install hostapd dnsmasq


[编辑] 10 WiFi

“Wlan0: Not associated”报错解决:

如下命令 OK,则网卡驱动 OK:

$ ifconfig wlan0
$ ifconfig wlan0 up
$ iwlist wlan0 scan | grep SSID

只需修改网络配置即可,增加一条网络凭条:

$ wpa_passphrase  YOUR_ssid YOUR_password >> /etc/wpa_supplicant/wpa_supplicant.conf

network={
        ssid="ssid"
        #psk="password"
        psk=44116ea881531996d8a23af58b376d70f196057429c258f529577a26e727ec1b
}

要使配置生效,则需要重启 wpa_supplicant:

<source lang=bash>
$ killall wpa_supplicant 
$ wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf 

或者:

$ sudo ifup wlan0

开机无法自动连 WiFi 则确认 /etc/network/interfaces 和 /etc/dhcpcd.conf:

allow-hotplug wlan0
iface wlan0 inet dhcp
  wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

和 /etc/dhcpcd.conf:

interface wlan0
static routers=192.168.1.1 255.255.255.0
static domain_name_servers=192.168.1.1


[编辑] 11 Bluetooth

 $ sudo apt-get install bluetooth bluez
 $ sudo apt-get install python-bluez


[编辑] 12 2G/3G/4G

 $ sudo apt-get install python-gammu gammu wvdial


[编辑] 13 GPS

 $ sudo apt-get install gpsd gpsd-clients


[编辑] 14 Qemu

$ sudo apt install qemu qemu-system-arm
$ 

Using Qemu to custom system
$ sudo apt-get install qemu
$ qemu-system-arm -cpu'?' | grep arm1176
$ qemu-system-arm -cpu arm1176 -m 256 -M versatilepb \
  -kernel ./kernel-qemu-4.14.79-stretch \
  -dtb ./versatile-pb.dtb \
  -hda ./2018-11-13-raspbian-stretch-lite.img \
  -append 'root=/dev/sda2 panic=1  init=/bin/bash' \
  -no-reboot -serial stdio
  -net nic \
  -net user,hostfwd=tcp::5022-:22 \

Edit the /etc/ld.so.preload, remove the 1st line:

 #/usr/lib/arm-linux-gnueabihf/libcofi_rpi.so

QEMU 模拟器上磁盘是认作 /dev/sda , 但是实机上是 /dev/mmcblk0 所以要设定对应的符号链接,创建 /etc/udev/rules.d/90-qemu.rules 并追加以下记录:

KERNEL=="sda", SYMLINK+="mmcblk0"
KERNEL=="sda?", SYMLINK+="mmcblk0p%n"
KERNEL=="sda2", SYMLINK+="root"

Then re-run the Qemu:

$ sudo apt-get install qemu
$ qemu-system-arm -cpu'?' | grep arm1176
$ qemu-system-arm -cpu arm1176 -m 256 -M versatilepb \
  -kernel ./kernel-qemu-4.14.79-stretch \
  -dtb ./versatile-pb.dtb \
  -hda ./2018-11-13-raspbian-stretch-lite.img \
  -append 'root=/dev/sda2 panic=1' \
  -no-reboot -serial stdio


[编辑] 15 Image

[编辑] 15.1 Raspberry PI 3B

  • Raspbian-4.1
  • raspberrypi-jessie-WAZIUP-demo.dmg.zip
  • 2019-04-08-raspbian-stretch-lite.zip


[编辑] 15.2 Raspberry Model A/B

  • raspberrypi-jessie-WAZIUP-demo.dmg.zip (HomeAssist)


[编辑] 15.3 Notes

Write image into SD card
$ sudo dd bs=1m if=2019-04-08-raspbian-stretch-lite.img of=/dev/rdisk2 conv=sync
Make SD card into a img file
$ dd if=/dev/mmc0 | gzip -9 > sd-all.img.gz
$ gzip -dc /tmp/sd-all.img.gz | sudo dd of=/dev/mmc0
Mount the img
sudo apt-get install dosfstools dump parted kpartx
sudo losetup /dev/loop0 2019-04-08-raspbian-stretch-lite.img
mkdir -p /mnt/a/boot/
mkdir -p /mnt/a/root/
sudo kpartx -av /dev/loop0 
boot="/dev/mapper/loop0p6"
root="/dev/mapper/loop0p7"
sudo mount $boot /mnt/a/boot/
sudo mount $root /mnt/a/root/

sudo kpartx -d /dev/loop0
sudo losetup -d /dev/loop0



[编辑] 15.4 Backup the System into img

#!/bin/sh
sudo apt-get install -y dosfstools parted kpartx rsync

df=`df -P | grep /dev/root | awk '{print $3}'`
dr=`df -P | grep /dev/mmcblk0p1 | awk '{print $2}'`
df=`echo $df $dr |awk '{print int(($1+$2)*1.2)}'`

sudo dd if=/dev/zero of=raspberrypi.img bs=1K count=$df

sudo parted raspberrypi.img --script -- mklabel msdos

start=`sudo fdisk -l /dev/mmcblk0| awk 'NR==10 {print $2}'`
start=`echo $start's'`
end=`sudo fdisk -l /dev/mmcblk0| awk 'NR==10 {print $3}'`
end2=$[end+1]
end=`echo $end's'`
end2=`echo $end2's'`

sudo parted raspberrypi.img --script -- mkpart primary fat32 $start $end
sudo parted raspberrypi.img --script -- mkpart primary ext4 $end2 -1

loopdevice=`sudo losetup -f --show raspberrypi.img`
device=`sudo kpartx -va $loopdevice | sed -E 's/.*(loop[0-9])p.*/\1/g' | head -1`
device="/dev/mapper/${device}"
partBoot="${device}p1"
partRoot="${device}p2"
sudo mkfs.vfat $partBoot
sudo mkfs.ext4 $partRoot
sudo mount -t vfat $partBoot /media
sudo cp -rfp /boot/* /media/
sudo umount /media
sudo mount -t ext4 $partRoot /media/
cd /media
sudo rsync -aP --exclude="raspberrypi.img" --exclude=/media/* --exclude=/sys/* --exclude=/proc/*  --exclude=/tmp/* / ./

# replace PARTUUID
opartuuidb=`blkid -o export /dev/mmcblk0p1 | grep PARTUUID`
opartuuidr=`blkid -o export /dev/mmcblk0p2 | grep PARTUUID`
npartuuidb=`blkid -o export ${device}p1 | grep PARTUUID`
npartuuidr=`blkid -o export ${device}p2 | grep PARTUUID`
echo "BOOT uuid old=$opartuuidb -> new=$npartuuidb"
echo "ROOT uuid old=$opartuuidr -> new=$npartuuidr"
sudo sed -i "s/$opartuuidr/$npartuuidr/g" $dst_boot_path/cmdline.txt
sudo sed -i "s/$opartuuidb/$npartuuidb/g" $dst_root_path/etc/fstab
sudo sed -i "s/$opartuuidr/$npartuuidr/g" $dst_root_path/etc/fstab

cd
sudo umount /media
sudo kpartx -d $loopdevice
sudo losetup -d $loopdevice



[编辑] 16 config.txt


[编辑] 17 Offical 7' touchscreen


[编辑] 18 Chromium Fullscreen

 /usr/bin/chromium-browser --profile-directory=Default --app-id=dbnedbfkgoaehilakknipiknpolnbapd --start-fullscreen


[编辑] 19 Preempt-RT


[编辑] 20 Reference













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