Raspberry Pi Zero Notes 2015-2019

a. Raspberry Pi Zero Notes.md

Setup initial access

1. Step 1. Edit config.txt & cmdline.txt

• Read learn.adafruit.com first time boot rPi. After creating raspbian SD image, edit and create the following 3 files in the SD boot volume

  • Add dtoverlay=dwc2 to the last line of config.txt
  • Edit cmdline.txt. Search rootwait text, and after add a space and then modules-load=dwc2,g_ether
  • Create an empty file named on ssh

1. Edit /etc/network/interfaces as shown below
2. Create wpa_supplicant text

wpa_passphrase "SSID" [wifi passphrase]

3. Edit /etc/wpa_supplicant/wpa_supplicant.conf as shown below
4. Some options

wpa_cli list_networks
wpa_cli select_network 1

3. Run the sudo raspi-config to enable SSH next time and resize the SD

4. Update all, and Remove node 10.x

sudo apt-get update
sudo apt-get upgrade
sudo apt-get autoremove nodejs

5. Install more

   sudo apt-get install vim tmux
   

6. Tmux config vim ~/.tmux.conf

# remap prefix from 'C-b' to 'C-a'
unbind C-b
set-option -g prefix C-a
bind-key C-a send-prefix# Start window numbering at 1
set -g base-index 1

5. Install node 11.x

# Node version 10 is the last version to support ARMv6
wget https://nodejs.org/dist/latest-v10.x/node-v10.17.0-linux-armv6l.tar.gz
tar -xvf node-v10.17.0-linux-armv6l.tar.gz
cd node-v10.17.0-linux-armv6l
sudo cp -R * /usr/local/
rm -r node-v10.17.0-linux-armv6l
rm node-v10.17.0-linux-armv6l.tar.gz

5. Avahi-daemon implements the Apple Zeroconf specification, (like bonjour) after this it is easy to ping hostname_pi.local from OS X or other Zeroconf configured machine. Secondly, avaih-utils will make it easy to find other RPis on the local network.

sudo apt-get install avahi-daemon avahi-utils

6. Logoff/Login
7. Run node -v

Slideshow

1. Install Feh image vierwer for slideshow, and screen saver.

sudo apt-get install feh
sudo apt-get install xscreensaver

2. In raspbian UI preferences, set to never enable screen saver

3. Create Feh script ~/start_feh.sh

echo "feh --recursive --randomize --auto-zoom -F -x -D5 -B white -Y -r /home/pi/Pictures" > ~/start_feh.sh
chmod 755 ~/start_feh.sh

sudo vim ~/.config/autostart/start_feh.desktop

Add this to the start_feh.desktop

[Desktop Entry]
Name=feh_slideshow
Exec=/home/pi/start_feh.sh
Type=Application

johnny-five

1. Install node modules

mkdir src/nodedev
cd src/nodedev
git clone https://github.com/rwaldron/johnny-five.git
npm install
npm install raspi-io

# optional

Firewall

sudo apt-get install ufw
sudo ufw status verbose

# turn it on, and set to enable at boot
sudo ufw enable

sudo ufw allow ssh

# other linux (not needed on rPi. already installed)
sudo apt-get install openssh-server

b. linux mint.md

VNC

1. config

sudo apt-get install x11vnc avahi-daemon
sudo x11vnc –storepasswd /etc/x11vnc.pass

2. Add the following to the last line of /etc/mdm/Init/Default and reboot

# do not use -ncache option
nohup x11vnc -auth /var/lib/mdm/:0.Xauth -noxrecord -noxfixes -noxdamage -bg -forever -nolookup -rfbauth '/etc/x11vnc.pass' -o /var/log/x11vnc.log 2> /dev/null 1>&2 &

interfaces.wheezy2015

# Not needed for modern raspbian versions
#
# /etc/network/interfaces
#
auto lo

iface lo inet loopback

allow-hotplug eth0
iface eth0 inet dhcp

allow-hotplug wlan0
iface wlan0 inet manual
  wpa_roam /etc/wpa_supplicant/wpa_supplicant.conf

iface default inet dhcp

nodejs.md

sudo apt install -y tightvncserver
sudo apt install -y xrdp

curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -
sudo apt install -y nodejs

wpa_supplicant.conf

# 
# /etc/wpa_supplicant/wpa_supplicant.conf
# config will connect to either WPA1 or WPA2
#
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=US

network={
  ssid="wifi_temp1"
  psk="temp-pass"
  scan_ssid=1
  id_str="temp1"
  priority=1
}

network={
  ssid="wifi_temp2"
  psk="temp-pass"
  scan_ssid=1
  id_str="temp2"
  priority=100
}