• ESP8266 ESP-01S 5V WiFi relay module, blue relay with green terminal block, suitable for Arduino and smart home retrofitting
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ESP8266 ESP-01S 5V WiFi Relay Module (Supports APP Remote Control)

ESP8266 ESP-01S 5V WiFi Relay Module (Supports APP Remote Control)

HK$25.00
HK$25.00
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Delivery Options

  • Local delivery within Hong Kong and in-store pickup.​
  • Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.​
  • Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).​
  • Estimated delivery time: 1–3 business days after dispatch (Hong Kong).​
  • In-store pickup details (location and time) will be confirmed by email or phone message.​
  • Delivery times are estimates and may be affected by weather or unforeseen circumstances.​

This smart relay module is specially designed for the ESP-01S WiFi module, making it an ideal choice for DIY smart home projects. With this module, you can easily convert traditional appliances into smart devices and remotely control their power via a mobile app. The design supports plug-and-play use and offers LUA source code, making it easy for developers to get started quickly.

Key Features:

  • Smart Home DIY Preferred: Designed for IoT applications, perfect for building your own smart switches and sockets.
  • Remote Control: Works with ESP-01S module, allowing you to control appliances anytime, anywhere via mobile app.
  • High Load Capacity: Relay supports up to 10A 250VAC / 10A 30VDC, suitable for most household appliances.
  • Wide Compatibility: Optimized for ESP-01S (built-in pull-up resistor), also compatible with ESP-01 (requires external 10K pull-up resistor).
  • Working Voltage: DC 5V.

Specifications:

  • Input Voltage: DC 5V
  • Relay Model: SRD-05VDC-SL-C
  • Load Ratings:
    • 10A 250VAC
    • 10A 125VAC
    • 10A 30VDC
    • 10A 28VDC

ESP-01 vs ESP-01S Note:
This module is optimized for the ESP-01S, which has the required pull-up resistor on the board. If you are using the older ESP-01 version, you need to connect a 10K pull-up resistor manually.

Important Notice (Disclaimer):

  • Technical Level: This product is a developer module and requires users to download and flash firmware themselves.
  • No Technical Support: Store only provides hardware and basic info, not programming or troubleshooting assistance. Beginners should consider their skills before purchasing.
  • Return Policy: No warranty or returns for damage due to incorrect operation (such as wrong wiring or over-voltage). Please handle with care.

Reference & Downloads:
The following supplier links include the Android app and LUA source code. Note: Links may become inaccessible at any time, and the store is not responsible for external content.

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