![]() This is important because you can address a GPIO via both numbers. There is also “Ground” (= ground connection) and the voltage pins (3.3V and 5V).Īs you can see, there are two pin assignments: First the ascending pin assignment (starting at 1 in the top left) and then the rather random numbering of the GPIOs. Raspberry Pi GPIO Pin AssignmentĪll pins that have “GPIO” in their names can be programmed. The left (green) side should symbolize the board of the Raspberry Pi. ![]() The following graphic lists the complete pins including functions and numbering. Not all of them can be read out or connected as there are also some voltage and ground connections. Since model B +, the Raspberry Pi’s have a 40-pin header. an LED can be inserted in two columns next to each other. The connections on the middle pins are vertical. At the top and on the bottom, you can see two horizontal bars, to which you normally attach the plus and minus pole of a device. The lines show which of the holes are connected. The connections are marked in the schematic drawing below. There are breadboards in different sizes, but the structure is usually as follows: It offers great advantages especially when testing and designing. If you want to build more hardware projects, you will definitely need these accessories.Ī breadboard is helpful as by using it one is able to set up circuits quickly without having to solder them every time. Incidentally, these components are always needed. Male-female jumper cable for the connection between Raspberry Pi and the breadboard.Breadboard, the functionality of which is explained below.In this tutorial, we will need a few hardware building blocks. I will try to incorporate that in the future. For those who already have programming experience but have not yet worked with the GPIOs, you can start with this directly.īy the way: It would be great for the other parts if you have any suggestions or what interests you the most. If you have not read the first part and you still have problems with the basics, I would advise you to go through that one first. In addition, I will also explain how a breadboard works. ![]() For this we will write a Python program, on the one hand, we record inputs and on the other hand, we switch the Raspberry Pi GPIO pins so that we can switch other modules and sensors. These so-called GPIOs can easily be switched via a program, which we will go through in this tutorial. One of the special features of the Raspberry Pi is the programmable input-output pins.
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