ESP8266-01S ESP-01S WiFi module 5V with relay adapter

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✔️ The AZ-Delivery ESP-01S module with microcontroller and 1-relay for up to 50V AC / 5A or 30V DC / 5A in a practical and affordable set!
✔️ Dimensions (LxWxH): 45 x 28 x 19 mm
The AZ-Delivery ESP01S module is fully compatible with various open source firmwares such as Tasmota, which are available online.
✔️ Control of the relay via WLAN 802.11 b/g/n. The controller is equipped with a flash memory of 1 MB and the processor with a speed of 80 MHz for autonomous work. The module is convenient to use and can be switched with only one GPIO pin.

Important downloads and links


With the AZ-Delivery ESP8266-01S relay module you have the possibility to switch a relay comfortably via WLAN.

With the help of free firmware, the module can be integrated into existing networks, without any programming knowledge!

The powerful ESP-01S with 1 MB memory and 80 MHz CPU clock allows independent execution, even of more complex applications. 

A powerful PCB antenna ensures a good reception and allows a use with high range.

The module is ideal for various smart home and Internet of Things applications.

  • ✔️ The relay is compatible with open source firmware such as Tasmota.
  • ✔️ The module is convenient to use and can be switched with only one GPIO pin
  • ✔️ Use without programming knowledge is possible
  • ✔️ Control of the relay is possible via WLAN 802.11 b/g/n
  • ✔️ Supply voltage 5V
  • ✔️ Popular in the community

Our AZ-Delivery Relay Modules switch quickly and reliably many switching operations.

For complex Arduino projects, where you want to control devices with larger current, many of our AZ-Delivery Relay Modules are suitable - let our assortment convince you!

Welcome to the AZ-Delivery family! Here you will find high quality products for your projects with Arduino and Raspberry Pi.

We are pleased to offer you a range of application examples, complete installation guides, e-books, libraries and personal support.

⭐️⭐️⭐️⭐️ AZ-Delivery: Your microelectronics expert!

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