Cytron ESP8266 WiFi Shield for Arduino with WROOM-02 Module

The Cytron ESP8266 WiFi Shield is a beginner-friendly, plug-and-play solution that makes adding WiFi connectivity to Arduino projects incredibly easy. Powered by the reliable ESP8266 WROOM-02 module, this shield eliminates the wiring complications and level-shifting issues commonly faced when using standalone ESP modules.

With preloaded Cytron_ESP_AT Firmware V2.2.0, onboard 3.3V regulation, selectable UART pins, and support for AT-command control, it is the perfect choice for IoT applications, wireless sensor systems, home automation, and connected electronics.

Designed with the Arduino R3 layout, this WiFi shield works seamlessly with Arduino UNO, Maker UNO, CT-UNO, CT-ARM, and various compatible boards. It also offers direct programming access to the ESP8266, breakout I/O pins, and optional microSD card support for data logging.

Whether you’re uploading custom firmware or using AT commands for WiFi communication, the Cytron ESP8266 WiFi Shield delivers stable wireless performance, strong signal output, and unmatched ease of integration, making it ideal for both beginners and advanced IoT developers.

Features:

• Compatible with Arduino R3 layout boards including Maker UNO, CT-UNO, CT-ARM, Arduino UNO R3, and Arduino Leonardo.
• Preassembled with ESP8266 WROOM-02 module and flashed with Cytron_ESP_AT V2.2.0 firmware.
• Onboard 3.3V regulator capable of supplying up to 500mA for stable WiFi operation.
• Selectable UART/Serial communication via mini jumpers (USB, hardware serial, software serial options).
• Supports 802.11 b/g/n, Wi-Fi Direct (P2P), Soft-AP mode, and full TCP/IP protocol stack.
• Integrated TR switch, balun, power amplifier, LNA, PLLs, regulators, and 32-bit CPU.
• +19.5 dBm output power for strong wireless range.
• Breakout pins available for programming or full I/O access of WROOM-02.
• Includes optional microSD slot for data logging and local storage.
• Each shield is fully assembled and tested before shipping.