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Two small green circuit boards with blue ESP-01S modules and black relay blocks

Generic Logic, Inc.

Generic Logic, Inc. ESP8266 ESP-01S WiFi Relay Module 2 pcs

SKU CH-DX9R-M30V3

Two ESP8266 ESP-01S WiFi relay modules for DIY smart switching and mobile-app remote control

  • Genuine relays provide high stability and low power consumption
  • Strong driving ability ensures stable and reliable performance
  • Based on ESP-01S WiFi module for DIY smart switch projects
  • Remote control via mobile phone APP with included source programs
  • Compact module measures 5.24 x 3.62 x 2.09 inches

Two-piece ESP8266 relay kit

This pack contains two ESP8266 ESP-01S WiFi relay modules designed for DIY smart-home switching. Each board combines a genuine relay with the ESP-01S module for remote control via a mobile application. The kit targets hobbyists and tinkerers who want to add wireless switching to appliances or lighting without designing custom PCBs. It is not suited for builders who need industrial-grade DIN-rail enclosures or higher contact ratings.

5 V coil with normally open contacts

The relays operate from a 5 V supply and provide normally open interfaces for switching external loads. The ESP-01S firmware supports app-based toggling and ships with LUA source code for quick customisation. Headroom is limited to the single-channel relay per board, so projects requiring multi-gang switching or dry-contact isolation will need additional modules. No higher-voltage or higher-current ratings are specified.

Compact board with pin-header mounting

Each module measures 5.24 x 3.62 x 2.09 inches and uses through-hole pin headers for breadboard or perfboard integration. The genuine relay construction aims for stable, low-power operation in permanent installations. Builders should verify enclosure clearances and provide their own 5 V regulation, as no onboard voltage conversion or protective housing is included. First listed in 2026.

Highlights

  • Genuine relays provide high stability and low power consumption
  • Strong driving ability ensures stable and reliable performance
  • Based on ESP-01S WiFi module for DIY smart switch projects
  • Remote control via mobile phone APP with included source programs
  • Compact module measures 5.24 x 3.62 x 2.09 inches

Specifications

No published specifications for this item yet.

Questions about this item

Will the 5.24 x 3.62 inch board fit inside the same enclosure as my older 5V relay boards?

The module measures 5.24 by 3.62 by 2.09 inches, so compare those dimensions with your existing enclosure before mounting.

How can I verify the ESP-01S module is communicating after wiring it to 5V power?

Connect the board to 5V, then check the mobile phone APP for the device status; the supplied APP and LUA source programs show connection state and relay toggles.

The listing says 2 pcs — does that mean two complete relay boards with ESP-01S modules already soldered on?

Yes, the package includes two ESP8266 ESP-01S relay modules, each with the ESP-01S WiFi module fitted, so no separate ESP-01S purchase is needed.

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