WiFi Remote Control Switch, 1-Way WiFi Relay Module 12V Relay Module For 1-Way WiFi Relay Module
WiFi Remote Control Switch, 1-Way WiFi Relay Module 12V Relay Module For 1-Way WiFi Relay Module
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WiFi Remote Control Switch, 1-Way WiFi Relay Module 12V Relay Module For 1-Way WiFi Relay Module

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Key item features

  • This 1-way WiFi relay module come with excellent production process, not easy to dry joint
  • The relay have long service life, which can be connected continuously for 100,000 times
  • WiFi remote control switch come with wireless control function, convenient control and operation
  • Only need a simple configuration process, the product can realize the wireless control of 1 relay in the local area using the mobile phone app
  • Using good-quality PCB material, with reliability, good maintenance and interchangeability
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Arrives by Sat, Jun 20
Sold by Womingchen
Fulfilled by Walmart
3.9407069555302168 stars out of 5, based on 877 seller reviews(3.9)
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Jan 12, 2026
Jeremy
Sold byWomingchenDelivered byWalmart
3 out of 5 stars review

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Works more or less w/ excessive effort

Issue: The module will not leave AP mode and connect to home AP as station. The Android app is not available from the Google Play store. Several are available for download from http://www.chinalctech.com but none were able to configure the device. Solution was to purchase a USB to TTL adapter, like “USB 2.0 to TTL Download Cable Jumper Adapter Module” https://www.walmart.com/ip/USB-2-0-to-TTL-Download-Cable-Jumper-Adapter-Module-for/1172606548. Remove power from relay. Remove jumpers from relay P4 that connect RX/RX1 and TX/TX1. Set USB adapter to 5v and connect USB 5v→relay 5v, GND→GND, RXD→RX1, TXD→TX1. Open serial terminal and make sure it sends both CR and LF. Configure the ESP-01 as per AT commands to connect to local AP in station mode and auto start TCP or UDP server, saving config. Remove connectors from USB adapter. Replace jumper on TX/TX1. Don't replace the jumper on RX/RX1 as that will put ESP-01 back into AP mode. Apply power to relay.

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