In this tutorial we show how to control the GPIO pins on the Raspberry Pi from a python program. We introduce the concepts by running commands from the python shell, and then show how to blink an LED using a python program. We explore both the BOARD and BCM pin numbering schemes.
This lesson shows you which pins can do what on the Raspberry Pi 2. We discuss the two different numbering protocols . . . bcm and Physical Pins.
In this lesson we show how to run python programs on the raspberry pi. The lesson shows that python comes preinstalled on the py, and we show how to select different versions of Python.
This video describes how to change file and folder permissions on the Raspberry Pi. We describe the use of the CHMOD command in linux. We look at recursive changes as well.
This video introduces you to the concept of file and folder permissions in Linux. We go through some simple examples.
This video shows how to create a new user account on the Raspberry Pi with the same admin privileges as Pi. This will give access to the sudo command and allow system modifications.
It is very easy to end up corrupting your SD card or operating system on the Raspberry Pi, so it is important to be diligent about making backups. In this video we show you a simple way to back up your SD card, and how to load the operating system from a backup if needed.
This lesson shows you how you can add new users to the Raspberry Pi. We also show how to delete users.
This lesson shows you how to remotely connect to your Raspberry Pi from a windows machine. We show how to install the Putty SSH Telnet client on Windows, and then how to connect to the Pi. You end up with a terminal window on your Desktop that is connected to the Raspberry Pi.
This lesson shows you how to figure out what the IP address is of your Raspberry PI.
The grep command is a powerful Linux commands that lets you search inside files.
This tutorial shows you how to use the Linux find command, and how use of wildcards with find is a powerful combination.
This lesson shows you how to use Linux pipes and tees. A tee allows you to take the output from one linux command or program and then send it to multiple places.
This lesson shows how to use Linux pipes. A pipe takes the output from one command and sends it as the input to another command. Pipes are one of the really powerful tools in Linux.
This lesson shows you some additional details on how path names work in Linux.
The standard boot configuration of the Raspberry Pi results in special characters not working correctly for many US keyboards. This lesson shows you a quick way to fix this.
In this lesson we learn about the importance of properly shutting down the Raspberry Pi and how to do it safely.
This is a quick lesson that shows you how to sort lists and files using the Linux sort command. We show how you can sort a file with output going to your terminal window, or how to send the output to a new file. We look at sorting alphabetically, numerically or by calendar month.
This lesson shows a cool trick where you can send the output from your Linux command line commands to a file instead of to the terminal window. This is very useful when we start scripting or automating commands.
This tutorial shows you how to use the Linux Command Line Wildcard. Using a wild card allows you to make easy work of what would otherwise be a difficult job.