Keyestudio ESP-01S Wifi to Serial Shield Module for Arduino ESP8266 Wifi

The Keyestudio ESP-01S Wifi to Serial Shield Module is a compact expansion board designed to simplify wireless connectivity for your Arduino projects. Ideal for students, educators, and makers, this shield makes it easy to interface with and configure the ESP-01S module.

Simplified WiFi expansion

This expansion board is designed specifically for the ESP-01S WiFi module, providing a stable platform for wireless communication. Upon power-on, the module automatically enters BOOT flash mode for immediate use.

Serial port testing

Test your AT commands directly through the serial port on the shield without needing complex wiring. This feature allows for quick diagnostics and configuration of your wireless module.

Onboard firmware burning controls

Easily update your firmware using the physical Flash and RST buttons on the shield. Holding the Flash button and pressing RST puts the module into download mode to start the burning process.

Power and physical specifications

The shield runs on a DC 5V working voltage with a minimum current draw of 500mA. It features a compact footprint of 24mm by 41.3mm by 11.9mm and weighs a mere 3.8g.

Eco-friendly and tutorial supported

Built to ROHS environmental standards, this module is safe and reliable for educational environments. It is fully compatible with Arduino software and supported by comprehensive wiki tutorials.