What is the Raspberry Pi header for?
What is the Raspberry Pi header for?
The Raspberry header is the key to its ability to interface with the real world. The Pi either uses a 40-pin or 26-pin depending on the model and it is important to understand how those pins are arranged and labelled. The GPIO header provides the following power and interface options : 3.3V (on 2 pins)
What is a GPIO header?
A general-purpose input/output (GPIO) is an uncommitted digital signal pin on an integrated circuit or electronic circuit board which may be used as an input or output, or both, and is controllable by software. GPIOs have no predefined purpose and are unused by default.
How many pin headers does Raspberry Pi provide?
40-pin
Raspberry Pi models Most models of the Raspberry Pi have a 40-pin header, as shown in the image above. Of the 40 pins, 26 are GPIO pins and the others are power or ground pins (plus two ID EEPROM pins, which you should not play with unless you know your stuff!).
What is the 40-pin connector on Raspberry Pi?
Stack multiple plates, breakouts etc onto your Raspberry Pi Model B+ with this custom-made 2×20 female header. The female header part has extra spaces to make it tall: when placed on your Pi, a PCB will clear the Ethernet and USB jacks.
What is GPIO pin in Raspberry Pi?
GPIO stands for General Purpose Input Output. The Raspberry Pi has two rows of GPIO pins, which are connections between the Raspberry Pi, and the real world. Output pins are like switches that the Raspberry Pi can turn on or off (like turning on/off a LED light). But it can also send a signal to another device.
What is a 40 pin GPIO header?
The 40-pin GPIO header on the Raspberry Pi 2 and 3 provides access to a total of 17 GPIO ports that can be controlled from programs you write in Python or other languages.\r\n\r\nTo use a GPIO port, you must first configure the port for input or output.
Are Raspberry Pi 3 and 4 pins the same?
The Raspberry Pi 4 board has a GPIO header with 40 pins. This GPIO header is also the same for Raspberry Pi 3 boards, so this guide applies to both versions.