September 24, 2016: Python 4: Input and Output

Introduction

Welcome back to the Python presentations!

It’s been a while so first a short(ish) recap of the previous 3 presentations, including in more detail the Input And Output section of session 3. Then I’ll discuss some useful Python Tutorials. And finally, we can go on to cover some further aspects of the language.

Simon Bluck
Find tutorial material here: Python Session 4

July 9th Meeting

Serving The Web With A Slice Of Pi

Although small in size, the Raspberry Pi and other embedded Linux boards can be used as very capable web servers.

Instructor Don Woods will show you how to set up a Web server on a Raspberry Pi and get around the little snags to be able to access your Pi from outside your local network.

The entire tutorial is available here:

http://piserver.vicpimakers.ca/

Note: This will be our last Meetup before the summer holiday season. We will reconvene in early September. Have a good summer, y’all!

June 25th Meeting

Low-cost High-quality PiFi Audio

Presented by Stuart Hertzog

Tired of iTunes? Time for PiTunes! — HiFi audio from your Pi.

You don’t need a PC or laptop to enjoy listening to hifi audio from your personal collection or Internet streaming. And you won’t have to endure the convoluted iTunes interface.

A low-cost Digital Audio Converter (DAC) or DAC and Amplifier such as offered by HiFiBerry or IQAudio will turn any Raspberry Pi2 or 3 into a low-cost and energy-efficient MPD audio server controlled from a Web browser or an iOS/Android app.

Join us as instructor Stuart Hertzog explains how to set up a DAC on your Pi and demonstrates the free and open-source Linux audio software PiMusicBox, Volumio, RuneAudio, and MoOde Audio.

Discover PiFi audio and a world of listening pleasure!

Check out the links for this presentation:

June 11th Meeting

Pi Weather Station Part 1: Temperature and Humidity

Instructor Deid Reimer will demonstrate how to:

  • Measure temperature and humidity with the Pi
  • upload the information for display to a web server and
  • display the information in text and graphical form.
Pi temperature and humidity graph
Web output from the sensors

Read the presentation material

May 14th Meeting

Using the GPIO Pins on the Pi – Part 2

By Deid Reimer

This meeting we’ll pick up on the Pi GPIO pins (Part 2), looking at input, using switches (push buttons). You’ll learn how to not only have your Pi illuminate lights or close relays, but also to take input via GPIO. Using the input and output GPIO capabilities of the Pi, one can create a home automation system, or even replace your “Nest” thermostat with the Pi.

Bring your Pi and get hands on help after the presentation.

Read the tutorial material

April 9 Meeting

VNC on the Raspberry Pi

by Craig Miller

In this meeting we’ll learn:

  • What is VNC
  • Why would you want to use VNC?
  • Basic Networking
  • VNC Server, VNC Client
  • Other remote GUI methods, X-Windows
  • Demo

Bring your Pi if you have one so you can set it up for VNC access as the presentation progresses.

Outline

  • What is VNC?
  • Why would you want to use VNC?
  • Basic Networking
  • VNC Server, VNC Client
  • Other remote GUI methods

Read the Presentation

March 12 Meeting

Building An Arduino Obstacle Avoidance Robot

by Eileen Amirault (with a little help from Cody Gregory)

Last March Break, I read a book that changed my life. I immediately ran out and purchased an Arduino. A Raspberry Pi was not far behind. After a few months of experimenting, and watching YouTube videos of kids building Obstacle Avoidance Robots (OAR), we thought it looked like a good first project. We call it Bobby OAR. An OAR is an autonomous robot that rolls around and avoids obstacles by using sensor input. Then, based on programming, finds an alternate path forward, avoiding obstacles along the way. We had most of the components from various kits, so only a chassis and wheels needed to be ordered. Or was there something else?