Description

The ESP8266 ESP-01 12V 4 Channels WiFi Relay Module combines a powerful ESP8266 WiFi module and microcontroller, enabling seamless wireless control of devices through a smartphone app within a local area network (LAN). This 4-channel relay module is ideal for managing higher voltages, allowing it to control up to 250V AC and 30V DC. Whether you want to operate remote lights or trigger various systems, this module provides a reliable solution for integrating device control into your IoT projects. The module features LED indicators that display its operational status, including a red power activation LED that illuminates when a signal is received on the IN pin. An audible click signals that the relay has triggered, connecting the output pins. Controlled by the onboard ESP8266, the module requires initial configuration via UART commands. Once programmed and powered, it autonomously manages operations, making it perfect for Internet of Things (IoT) applications.