Your new post is loading...
The best thing about any Raspberry Pi, including the new Raspberry Pi 4, is that you can use it to build all kinds of awesome contraptions, from robots to retro gaming consoles and fart detectors. Most of the sensors, motors, lights and other peripherals that make these projects possible connect to the Pi's set of GPIO pins. Every Pi model since the Raspberry Pi B+ has had 40 GPIO pins, though on the Pi Zero and Zero W, you have 40 holes that you can solder pins or wires into.
This guide has been updated to reflect the new capabilities of the Raspberry Pi 4, which still comes with 40 GPIO pins, but has a few extra I2C, SPI and UART connections available.
