AOICRIE 3PCS ESP8266 ESP-01S Wireless WiFi Transceiver Relay Module Compatible for Arduino Smart Home Remote Control Unlock Set

With the ESP8266-01S relay set you have everything in one module to control a relay via WLan. The powerful ESP-01S with 1 MB memory and 80 MHz CPU clock enables independent execution, even in more complex applications, and can be easily integrated into the PCB antenna with a range of up to 300 m either directly in AP mode or integrated into your own Smart Home. Specifications: ✔️ Mains current control via WLAN 802.11 b/g/n provides strong and stable connection ✔️ The module is convenient to use and can be switched with only one GPIO pin ✔️ Supply voltage: 5V ✔️ Various open source firmware available Package: 3 x ESP8266 ESP-01S Module 3 relay adapter ESP8266