Microcontroller Pinout Reference

MCU Hub is your comprehensive microcontroller pinout reference tool, designed for makers, embedded developers, and electronics enthusiasts. **🔌 Supported Boards:** • Arduino Uno R3 • Arduino Nano 33 BLE • ESP32 DevKit (38-pin & 30-pin) • ESP32-C3 Mini & SuperMini • M5Stack Core2 • Raspberry Pi 5 **✨ Key Features:** • Interactive pinout diagrams with color-coded pins • Click any pin to see detailed information • Search pins by name or number • Filter by function (GPIO, ADC, I2C, SPI, UART, PWM, Touch) • Direct links to official datasheets • High-contrast dark theme for easy viewing • Works completely offline • No data collection or tracking **🎯 Perfect For:** • Embedded systems development • IoT projects • Arduino programming • ESP32/ESP8266 projects • Hardware prototyping • Learning microcontroller pin layouts **📚 Includes Datasheets For:** • ATmega328P, ATmega2560, ATmega32U4 • nRF52840 (Nano 33 BLE) • ESP32, ESP32-S3, ESP32-C3 • ESP8266 • BCM2712, BCM2711 (Raspberry Pi) • RP2040 (Raspberry Pi Pico) **🚀 How to Use:** 1. Click the MCU Hub icon in your toolbar 2. Select a microcontroller board 3. View interactive pinout diagram 4. Click pins for detailed specifications 5. Use search and filters to find specific pins **💡 Benefits:** ✓ Save time - no more searching through PDFs ✓ All information in one place ✓ Clean, intuitive interface ✓ Instant access - works offline ✓ Free and open source Perfect companion for your electronics projects!