Overview

A simple always-on weather display designed for use on the (inky what)[shop.pimoroni.com/products/inky-what] and the Raspberry Pi Zero W. Makes use of (openweathermap)[https://openweathermap.org/] and (GeoNames)[https://www.geonames.org/] and you'll need a (free) API key from both of those services.

Raspberry Pi Setup

Connecting

Given an SD card with Raspian installed:

In /boot/ create file called ssh

In /boot/ create file called wpa_supplicant.conf Populate wpa_supplicant.conf with:

country=US
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1

network={
ssid="WIFI_SSID"
scan_ssid=1
psk="WIFI_PASSWORD"
key_mgmt=WPA-PSK
}

Access with: ssh pi@raspberrypi.local

System Setup

Update:

sudo apt-get update && sudo apt-get upgrade -y

Install system dependencies:

sudo apt-get install python-pip3

Optionally, add a daily reboot to keep things fresh. Run crontab -e as a super user and add the line

0 2 * * * reboot

Installation

# install python dependencies from pypy
pip3 install -r requirements.txt
# install inky python libraries
curl https://get.pimoroni.com/inky | bash

Download fonts from google fonts, e.g. https://fonts.google.com/specimen/Nova+Mono and place them in ./fonts and make sure the current.ttf symlink is pointed correctly.

Setup a cront tab to update the display every 15 minutes run crontab -e and add the line

*/15 * * * *  /path/to/repo/update_diplay.sh

TODO

• Dockerize scripts
• Figure out better system for connecting to WiFi (or just use ethernet)
• Describe steps to battle harden SD cards