| #!/usr/bin/env python | |
| """ vim: set ai tw=80: | |
| Accessing the K30 10,000ppm CO2 sensor via I2C, rather than UART, upon Linux | |
| (such as for the Raspberry Pi and other similar embedded systems). | |
| Copyright (c) 2019 George White. | |
| Permission is hereby granted, free of charge, to any person obtaining a copy of | |
| this software and associated documentation files (the "Software"), to deal in |
| import math | |
| from math import pi | |
| def points_on_circumference(center=(0, 0), r=50, n=100): | |
| return [ | |
| ( | |
| center[0]+(math.cos(2 * pi / n * x) * r), # x | |
| center[1] + (math.sin(2 * pi / n * x) * r) # y |
In the following, we assume a working Flask application with the name of SCRIPT_NAME. First we need to install a couple of things:
sudo apt-get update && sudo apt-get upgrade
Installing nginx will fail if apache is running. If your installation breaks half ways, then remove the fragments, stop apache (and I actually suggest removing it in case not needed) and then install nginx again:
sudo apt-get remove nginx* --purge
sudo /etc/init.d/apache2 stop
| #!/usr/bin/env python | |
| # encoding: utf-8 | |
| """ | |
| python_3_email_with_attachment.py | |
| Created by Robert Dempsey on 12/6/14. | |
| Copyright (c) 2014 Robert Dempsey. Use at your own peril. | |
| This script works with Python 3.x | |
| NOTE: replace values in ALL CAPS with your own values |
| #!/bin/bash -e | |
| # /usr/local/sbin/raspi-monitor | |
| # Script to enable and disable the HDMI signal of the Raspberry PI | |
| # Inspiration: http://www.raspberrypi.org/forums/viewtopic.php?t=16472&p=176258 | |
| CMD="$1" | |
| function on { | |
| /opt/vc/bin/tvservice --preferred |
| /* | |
| * I add this to html files generated with pandoc. | |
| */ | |
| html { | |
| font-size: 100%; | |
| overflow-y: scroll; | |
| -webkit-text-size-adjust: 100%; | |
| -ms-text-size-adjust: 100%; | |
| } |