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ESP8266 ESP-01 WIFI Wireless with 1Ch Relay IoT Module

ESP8266 ESP-01 WIFI Wireless with 1Ch Relay IoT Module

The Dual WiFi Relay Module is an IoT smart home solution that allows you to control appliances via the Internet. It includes an onboard ESP-01 WiFi module and STM8S103 MCU. Using a mobile app over LAN or WiFi, users can easily switch connected relays with just a tap.

Package Includes:

  • 1 x One-Channel WiFi Relay Module

35.00 AED 35.00 AED Tax Included
35.00 AED Tax Included

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Wifi Relay
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Features:

  • Two working modes: Direct connection or router-based communication
  • Supports SmartConfig for easy setup of WiFi credentials
  • Can be used as a USB relay (when ESP-01 is removed)
  • Transmission range up to 100 meters in open space
  • Compatible with apps like ESP Touch--Demo and EasyTCP--20
  • Default baud rate: 9600 (configurable via AT commands)

Specifications:

  • Model: ESP8266 (ESP-01)
  • Channel: 1-channel relay
  • Relay Specs: 5V 10A 250V AC / 10A 30V DC
  • Board Size: 59 x 40 mm
  • Weight: 36g (approx)
  • Interfaces: UART debug, STM8 SWIM programming port

 

Operating Instructions:

  1. Prepare a 5V/1A power adapter and install the "ESP Touch--Demo" app.
  2. Connect power to IN+ and IN- of the module.
  3. Install "EasyTCP--20" app to send HEX-based relay control commands.

Working Modes:

Mode 1 – Direct Connection (AP Mode)

  1. Plug in ESP-01. After ~4 seconds, green LED blinks every 2 seconds (ready state).
  2. Connect phone directly to ESP-01’s AP WiFi signal.
  3. Open "EasyTCP--20", tap "CONNECT", and send relay commands via gray buttons.

Mode 2 – Router-Based Connection (STA Mode)

  1. Plug in ESP-01, press S1 to enter Mode 2. Blue LED flashes every 0.5s (waiting).
  2. Use "ESP Touch--Demo" app to enter router password and begin configuration.
  3. Upon success, ESP-01 connects to router and displays its IP (e.g., 192.168.0.189).
  4. Open "EasyTCP--20", enter IP, tap "CONNECT" to control the relay.

Warm Tips:

  • Initial WiFi setup may take ~1 minute. Subsequent connections take ~20 seconds.
  • To reset WiFi settings, press the S2 button or power cycle the module.
  • If signal is weak, reconnection will be attempted automatically (green LED behavior indicates status).
  • If disconnected for more than 6 minutes, manually reconnect via the "CONNECT" button in "EasyTCP--20".
  • Only when the green LED blinks every 2 seconds or is steady can the relay be operated.