Setting up the Raspi

Setting Up The Raspi

Establish Wifi, Bluetooth.

Credentials are pi@raspberrypi.local and raspberry. KiTTY seems to be a good terminal.

Set Up WiFi without Screen

Into root directory:

• Add an empty file called ssh
• Add a file wpa_supplicant.conf which includes

country=ee 
update_config=1
ctrl_interface=/var/run/wpa_supplicant GROUP=netdev
network={
    scan_ssid=1
    ssid="YOUR_NETWORK_NAME"
    psk="YOUR_PASSWORD"
    key_mgmt=WPA-PSK
}

Note the (Notepad++: Edit) EOL conversion UNIX.

https://www.raspberrypi-spy.co.uk/2017/04/manually-setting-up-pi-wifi-using-wpa_supplicant-conf/

USB cable // Perhaps requires Zero

Connect via usb to gadget mode. After flashing RaspianOS. The following files are at boot-directory

• Modify config.txt: add dtoverlay=dwc2
• Add an empty file called ssh
• Edit cmdline.txt: Ensure that there exist rootwait modules-load=dwc2,g_ether.

Now you can ssh pi@raspberrypi.local if the usb cable is plugged in.

Raspi and VIM

Vim-nox is the (enhanced) minimal vi editor. Does not have a GUI, but includes the mouse support, but not the clipboard. Install vim and vim-nox. Some different vim plugin managers are

• vim-plug. Minimalist. Load plug.vim when vim starts (.vim/autoload). Instructions to install at https://www.linuxfordevices.com/tutorials/linux/vim-plug-install-plugins. Use the command :PlugInstall to install.
• vundle (updated 2019)
• pathogen
• dein.vim
• volt
• janus
• minpac

After updating .vimrc or my_configs.vim remember to source the file: :source %. Some important thing in vim ~/.vimrc

• syntax enable
• set expandtab
• set tabstop=2
• set incsearch
• set hlsearch
• let mapleader=","
• set mouse=a """Mouse control

Two-column view: Ctrl-w v. The scrollbind is: set scrollbind. Command ^w l goes to new split, and also ^w arrows work.

Visual line wrapping: using gj you can move one visual line on screen if wrapped long lines are included. See https://vim.fandom.com/wiki/Move_cursor_by_display_lines_when_wrapping for a function to be inserted in .vimrc.

Running Python on vim: https://stackoverflow.com/questions/18948491/running-python-code-in-vim. Set python autocomplete on vim: https://scribles.net/enabling-python-autocomplete-in-vim-on-raspberry-pi/.

'Latex on vim: I use vim-latex @ https://github.com/vim-latex/vim-latex. Use Plug 'https://github.com/vim-latex/vim-latex between call plug#begin() and call plug#end() and install with :PlugInstall. Beginners tutorial at http://vim-latex.sourceforge.net/documentation/latex-suite-quickstart/. Ctrl-j removes the trailing <> marks. F5 is the key insert environments and stuff but see the list at http://vim-latex.sourceforge.net/documentation/latex-suite/auc-tex-mappings.html for other commands. Folding of environments should be using <Leader>rf but I need to change the >Leader>. I use let mapleader="," to change mapleader to comma, this ,rf works for folding. zA or zR opens folds. References are handled with F9. Compile the document with <Leader>ll and view the dvi with <Leader>lv (didn't work everytime, but it opens the Document viewer (Evince) to the screen (not in to the vim).

Manim