keyestudio ESP-01 Wifi 3V Relay Module For Arduino

The keyestudio ESP-01 Wifi 3V Relay Module is an essential component for makers and hobbyists building smart home and Internet of Things (IoT) projects. Equipped with an onboard ESP8266-01 Wi-Fi module, it allows you to control appliances wirelessly over your local network or the internet. It is ideal for students and developers looking to explore wireless automation with Arduino.

Wireless smart home automation

This relay module is specifically designed for wireless control in Internet of Things applications. It connects directly to your wireless network, allowing you to open or close the relay by sending commands from a remote or LAN host computer.

Integrated ESP8266-01 Wi-Fi module

The board comes equipped with an ESP8266-01 Wi-Fi module as its main control chip. This integration provides a compact and efficient solution for handling network communications and relay switching on a single platform.

Low voltage power requirements

The module operates on a working voltage of DC 3V to 3.3V, making it compatible with low-power microcontrollers. It requires a working current of more than 500mA to ensure stable switching operations.

Robust relay switching capacity

Featuring the HK4100F-DC3V-SHG relay model, this module supports switching specifications of up to 3A at 250V AC or 3A at 30V DC. This allows you to safely control a variety of household appliances and electronic loads.

Convenient physical interface

The board features a 128-3.5 3P output terminal for secure and straightforward wiring connections. It also includes an onboard reset button for easy system reboots during development.