Raspberry Pi
Raspberry Pi

Raspberry Pi

Create a SIM Card

Use BalenaEtcher to create a SIM card. 8GB is adequate for Raspbian if you don't install too much on it.

Networking

sudo raspi-config. Join WiFi. Optionally, change the hostname, here or via sudo nano /etc/hosts (followed reboot).

Enable ssh (below)

Discover the IP address. On the Pi: hostname -I. Or install Bonjour via sudo apt-get install avahi-daemon libnss-mdns. (Seems already to be installed…)

From a local laptop, ssh-copy-id pi@<IP-ADDRESS>

Enable ssh

Three methods:

  1. Use the UI.
  2. From the command line:
    3. sudo systemctl enable ssh
sudo systemctl start ssh
  3. Create an empty file named ssh on the boot partition.

Disable password login

sudo sed -i 's/#\?ChallengeResponseAuthentication yes/ChallengeResponseAuthentication no/' /etc/ssh/sshd_config
sudo sed -i 's/#\?PasswordAuthentication yes/PasswordAuthentication no/' /etc/ssh/sshd_config
sudo sed -i 's/#\?UsePAM yes/UsePAM no/' /etc/ssh/sshd_config
sudo /etc/init.d/ssh reload

Change the hostname

sudo nano /etc/hosts
sudo nano /etc/hostname

Install FPR client

Download and build.

Install ngrok

Download ngrok from https://ngrok.com/download. Unzip it into ~/bin.

Retrieve the ngrok ssh token.

ngrok authtoken ${TOKEN}

ngrok tcp -remote-addr=1.tcp.ap.ngrok.io:21265 -region=ap -log=stdout 22 > ngrok.log

Edit ~/.ngrok2/ngrok.yml. Add the following after the authtoken line.

region: ap
log: /var/log/ngrok.log
update: true
tunnels:
  ssh:
    proto: tcp
    addr: 22
    remote_addr: xxxx
    subdomain: 1.tcp.ap.ngrok.io

ngrok start ssh

Home Automation

sudo su homeassistant
cd
source bin/activate

Install MQTT

curl -s https://packagecloud.io/install/repositories/rabbitmq/rabbitmq-server/script.deb.sh | sudo bash
sudo apt-get install rabbitmq-server
sudo systemctl enable rabbitmq-server
sudo systemctl start rabbitmq-server
sudo rabbitmq-plugins enable rabbitmq_management

In your web browser go to http://<IP of PI>:15672/

Displays

sudo nano /boot/config.txt

[EDID=XMD-Mi_TV]
hdmi_group=2
hdmi_mode=82 

[all]
cec_osd_name=MoPi

See HDMI resolution table and HDMI configuration.

3.5" TFT Touchscreen:

cd /home/pi/LCD-show && sudo ./LCD-hdmi

Screensaver

Wake from CLI: xscreensaver-command -deactivate

UARTPinouts