In the previous post about affordable home automation based on Raspberry PI, We learned to check the House mains connections from a panel of eight relays connected to our Raspberry PI.
Today we will see how to control a total of sixteen electrical appliances Thanks to the circuit that we implemented above, and enabling boards has given me Jordi of @electronics.cat and you already could you see in the summary of the Hardware Freedom Day; designed by the same, and one hundred percent free hardware.
In the previous post we saw were the GPIO pins and some examples of practical applications, Today we will focus on the operation of general-purpose pins, and learn to control them with the interpreter's orders Bash and with Python.
Will use a LED, a resistance of 330 ohm, wire, and one Breadboard, or solder and a soldering iron.
We will also need our Raspberry have already Raspbian pre-installed, If your case is not, You can see how to do it in the following link from the Directory.