ESP8266 ESP-01 12V 4, Channels WiFi Relay, Module Things Smart, Home Remote Control, Switch

(2 customer reviews)

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SKU: 1121304
  1. Transmission Distance(m) :400
  2. Relay Channel:4
  3. Trigger Voltage (VDC): 12
  4. Switching Voltage (VAC):250@10A
  5. Switching Voltage (VDC):30@10A
  6. Baud Rate:9600


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Brand: Generic
Category: Relay Modules

ESP8266 ESP-01 12V 4 Channels WiFi Relay Module Things Smart Home Remote Control Switch is WiFi relay module carries an ESP8266 WiFi module and microcontroller. It will send the serial port instructions to the cell phone APP and Implementation within the local area network (LAN) for wireless control relay.

This module is ideally suited to controlling larger voltages in your project through WIFI. This is a 4 channel relay module that can be used to activate up to 250V AC and 30V DC. This allows you to build in device control, operating remote lights, or triggering systems when the module is supplied with a signal from an ESP8266 module.

The module has an LED that lights relative to the state of the module. A red power activation LED that lights when a signal is received on the IN pin. When a signal is received an audible click can be heard as the relay triggers, connecting the output pins. The relay is controlled via the included ESP8266. This will require configuration via UART prior to full operation. Once it is programmed and powered it will look after itself, making it ideal for use in internet of things “IOT” based projects.

How to Use:

  1. 12V/1A power adapter and APP “ESP Touch–Demo”
  2. Step 1: The 12V/1A power adapter, the positive and negative poles of the power are connected to IN+ and IN- of the module respectively.
  3. Step 2: Android mobile terminal installation APP”Esp Touch–Demo”, for the first use of work mode 2 to ESP-01 module configuration WiFi account number and password.
  4. Step 3: Android mobile terminal to install APP “Easy TCP–20”, TCP transmission tool, used to send relay control instructions. Click on “SWITCH”, and then enter the 2 relay control instructions and names and contents (instruction form HEX) by the gray blocks in the interface.


  1. Transmission distance: In an open environment, the maximum stable transmission distance is 100M when the mobile phone is mounted on the WiFi module.
  2. When the WiFi module and mobile phone are carried on the router at the same time, the transmission distance depends on the signal strength of the router.
  3. The use of Smart config technology in the mobile phone on the APP ESP-01 WiFi module to complete the account and password configuration, configured username, and password memory function.
  4. Onboard 12V, 10A//250V AC 10A//30V DC relay, which can be continuously pulled for 100 thousand times, has diode discharge protection, short response time.
  5. Board mode selection and real-time working status indicator.
  6. Reserved UART debug interface and STM8 SWIM program download interface.

Package Includes:

1 x ESP8266 ESP-01 12V 4 Channels WiFi Relay Module Things Smart Home Remote Control Switch

SKU: 1121304 Category:
Transmission Distance(m)


Relay Channel


Trigger Voltage (VDC)


Switching Voltage (VAC)


Switching Voltage (VDC)


Baud Rate (bps)


Shipping Weight 0.01 kg
Shipping Dimensions 7 × 4 × 2 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Based on 2 reviews

5.0 overall

Add a review

  1. sanjayjuded (verified owner)

    After flashing with Tasmota, I can use it as a 4-channel relay module.


  2. sanjayjuded (verified owner)

    The module is small and compact. But I need to know the gpio connected to relays.


Questions and answers of the customers

    Does it come pre-programmed? It does not seem to h... Read more
  1. 0 votes
    Q Does it come pre-programmed? It does not seem to have communications port. How to connect to l...... Read more answer now
    Asked by 0debits.damask on March 4, 2024 5:10 pm

    Yes, The device comes pre-programmed with a fir... Read more

  2. is the model works with esphome
  3. 0 votes
    Q is the model works with esphome answer now
    Asked by mukesh.m1996 on December 27, 2023 8:45 am

    Yes, its works with esphome

  4. The esp touch app doesn't connect to the module. L... Read more
  5. 0 votes
    Q The esp touch app doesn't connect to the module. Let me know the gpio connected to relays so I ca...... Read more answer now
    Asked by sanjayjuded on July 7, 2023 8:25 pm
    1. 12V/1A power adapter and APP “ESP Touch... Read more
  6. How does one use this? Can I use Tasmota on this m... Read more
  7. 0 votes
    Q How does one use this? Can I use Tasmota on this module? answer now
    Asked by jbkol on January 13, 2023 3:39 pm
    A I flashed with Tasmota firmware and configured the... Read more
  8. How to program ESP 01S? Do we have to purchase USB... Read more
  9. 0 votes
    Q How to program ESP 01S? Do we have to purchase USB to TTL converter? Please reply answer now
    Asked by Praveen Joshi on February 9, 2022 10:04 pm

    Yes, you will need to purchase a USB to TTL con... Read more

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Country Of Origin: China