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Installing ESP8266 in Arduino IDE: NodeMCU (ESP-12E) Complete Setup Guide for Windows
From driver headaches to a blinking LED — the full Windows walkthrough for getting NodeMCU ESP8266 boards running in Arduino IDE, plus notes for Mac and the bare ESP-01 module.

Guide
Raspberry Pi GPIO Pinout: The Ultimate Reference

Guide
ESP32 Pinout Guide: Every GPIO, ADC, PWM, and Restricted Pin Explained

Guide
Arduino Uno R3 Pinout: Every Pin Explained (Digital, Analog, PWM, Power)

Guide
NodeMCU ESP8266 complete Pinout Guide: GPIO Numbers, D-Pins & Boot Pins Explained

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Ultimate Arduino Mega 2560 Pinout Guide: Complete Power & I/O Reference
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