PinoutHub Arduino Uno, introduced in 2010, is built around the ATmega328P microcontroller and provides 14 digital I/O pins, 6 analog inputs, and standard UART, I2C, and SPI interfaces at 5V logic level. This page provides the complete Arduino Uno pinout, including digital and analog pin mapping, power rails, communication interfaces (UART, I2C, SPI), and current limitations. … Read more
The Raspberry Pi 3 Model B is a versatile single-board computer powered by a 1.2 GHz 64-bit quad-core processor, featuring built-in Wi-Fi, Bluetooth 4.1, Ethernet, and a full 40-pin GPIO header—making it ideal for learning, prototyping, retro gaming, and a wide range of embedded and IoT projects. Here’s the full pinout to help you get started … Read more
The Raspberry Pi 3 Model A+ is a compact and efficient single-board computer designed for space-constrained and low-power projects. It uses the same 40-pin GPIO header layout found on larger Raspberry Pi boards, ensuring strong compatibility with sensors, HATs, and expansion modules. Below is the complete GPIO pinout and hardware overview for building reliable Raspberry … Read more
The Raspberry Pi 2 Model B introduced a major architectural shift, replacing the single-core processor used in earlier models with a quad-core ARM CPU. Despite the internal changes, the 40-pin GPIO header remained identical to the previous B+ layout, allowing existing circuits and HATs to work without modification. This page provides the complete GPIO pinout … Read more
The Raspberry Pi 3B+ builds on the Pi 3 architecture with higher clock speeds, dual-band Wi-Fi, Gigabit Ethernet (over USB 2.0), and better thermal management. It keeps the same 40-pin GPIO layout, but tightens up the hardware in ways that make it more reliable for connected and long-running projects. Pi 3B+ GPIO Pinout Pin Name … Read more
The Raspberry Pi 4 brings a major hardware upgrade with a faster Cortex-A72 CPU, LPDDR4 memory options up to 8GB, true Gigabit Ethernet, USB 3.0 ports, and dual 4K display support. It’s a significant step up in performance and I/O capability while keeping the same 40-pin GPIO layout. Pi 4 GPIO Pinout Pin Name / … Read more
The Raspberry Pi 5 keeps the same 40-pin GPIO header as previous models, so most existing accessories and projects still work. These pins let you connect sensors, modules, and other hardware directly to the board. Here’s the full pinout to help you get started with the Raspberry Pi 5’s GPIO. Official GPIO Pinout RPI 5 … Read more