Description

The ESP8266 Shield for Arduino UNO R3 brings Wi-Fi connectivity to your Arduino projects with ease. Designed to integrate seamlessly with both Arduino UNO and MEGA boards (excluding smaller models like Nano and Mini), this shield offers industrial-grade Wi-Fi connectivity through the ESP8266-12 module. Featuring advanced features such as a 5V to 3.3V power supply converter, built-in TTL level converter, and on-board status LEDs, this shield is perfect for developers looking to add wireless capabilities to their projects without the hassle of additional power supplies or complex configurations.

Why Choose the ESP8266 Shield for Arduino UNO R3?

With its easy-to-use design and compatibility with standard Arduino boards, the ESP8266 Shield is an excellent choice for both beginners and experienced developers. The inclusion of a reliable power conversion system ensures stable operation without the need for external power supplies, while the enhanced antenna improves signal quality for better Wi-Fi performance. This shield is ideal for wireless sensor networks, IoT projects, and other applications requiring reliable internet connectivity.

Key Features

Industry-Grade Wi-Fi Module: ESP8266-12 with enhanced PCB antenna for improved signal strength.
Power Supply Integration: Onboard 5V to 3.3V power supply conversion IC with no need for additional power sources.
TTL Level Conversion: Built-in TTL level converter to protect your Arduino from high voltage, ensuring safe operation.
Easy Debugging: Onboard debug port for firmware upgrades and ESP8266 debugging.
Switchable Operation Modes: Quickly switch between normal operation mode and firmware upgrade mode using the 4-bit dial switch.
LED Status Indicators: Four LED displays (PWR, DFU, AP, STA) to indicate the ESP8266’s status at a glance.
Uninterrupted Arduino Ports: The shield occupies only one set of serial ports (DO, D1) while leaving other I/O pins free for use.
Flexible Expansion: Stackable design allows for easy integration with additional modules.

Technical Specifications

Compatibility: Arduino UNO, Arduino MEGA
Wi-Fi Module: ESP8266-12E
Power Requirements: 5V to 3.3V power supply conversion IC
Communication Ports: Uses only DO and D1 serial ports of Arduino
Operational Modes: Normal mode (ON) / Firmware upgrade mode (DFU, OFF)
Connectivity Options: Built-in TTL level conversion for safe communication with the ESP8266
LED Indicators: 4 status LEDs (PWR, DFU, AP, STA)
Expansion Port: Stackable design for easy module stacking