ESP8266 ESP-01 12V 2 Channels WiFi Relay Module Things Smart Home Remote Control Switch

The ESP8266 ESP-01 12V 2 Channels WiFi Relay Module is designed for smart home applications, employing the ESP-01 as the WiFi component and is compatible with 8-bit MCU chips. With a straightforward setup, users can wirelessly manage the dual relay functions using a mobile application within the local area network.

Key Features:

• Integrated high-performance microprocessor STM8S103 alongside ESP-01 WiFi modules.

• This module operates in two distinct modes:

• Mode 1: Direct connection of the mobile phone to the WiFi module.

•        Mode 2: Both mobile phones and WiFi modules connected to routers.

•        Additional feature: Functions as a USB relay when the ESP-01 module is removed.

• Transmission range: In open conditions, the stable transmission distance can reach up to 100M when the mobile phone is connected directly to the WiFi module.

• When both the WiFi module and mobile phone are linked to a router, the transmission distance will vary based on the router's signal strength.

• Utilises Smartconfig technology via the mobile app for configuration of WiFi credentials, with built-in memory for the username and password.

• Equipped with a 5V, 10A//250V AC 10A//30V DC relay, capable of enduring 100,000 cycles, featuring diode discharge protection and rapid response times.

• Includes a mode selection feature and a real-time status indicator for operational monitoring.

• Contains a reserved UART debug interface and an STM8 SWIM programming download interface.

Specifications:

• Transmission Distance (m): 400

• Relay Channels: 2

• Trigger Voltage (VDC): 12

• Switching Voltage (VAC): 250@10A

• Switching Voltage (VDC): 30@10A

• Baud Rate: 9600

• Dimensions (Length x Width x Height in mm): 59 x 40 x 20

• Weight (gm): 60

Operating Instructions:

Please prepare the following before use:

• 5V/1A power adapter and the app “ESP Touch–Demo”

• Step 1: Connect the 12V/1A power adapter to the IN+ and IN- terminals of the module.

• Step 2: Install the app “ESP Touch–Demo” on your Android device. For first-time setup, configure the ESP-01 module in Mode 2 with your WiFi credentials.

• Step 3: Install the app “Easy TCP–20” on your Android device, which serves as a TCP transmission tool for sending relay control commands. Select “SWITCH”, then input the relay control instructions in HEX format using the interface provided.

Instructions for Operating Modes and Additional Function:

Operating Mode 1 (Mobile phone connected directly to the ESP-01 module):

• Power on the ESP-01 module. After approximately 4 seconds, the green light will flash for 2 seconds, indicating configuration completion.

• Connect your mobile device to the AP hotspot signal broadcasted by the ESP–01 module.

• Open the “EasyTCP–20” app and tap “CONNECT”. Upon successful connection, the green light will change to a slow flash. You can now send commands to control the relay switch.

Operating Mode 2 (Mobile phones and WiFi modules connected to routers simultaneously):

• Power the ESP–01 module, which will flash a green light. Press the S1 button to switch to Mode 2. The blue light will flash, and after about 1 minute, it will change to a 0.5-second flash, indicating readiness for WiFi configuration through the “ESP Touch–Demo” app.

• Ensure your mobile device is connected to the router. Open the “ESP Touch- Demo” app, input your router password, and tap “Confirm”.

• Wait for the configuration to succeed. When the app displays the ESP-01 IP address (e.g., 192.168.0.189), it indicates that the module is connected to the router and has saved your credentials for future connections (approximately 20-60 seconds).

• Note that the IP address (192.168.0.189) is dynamically assigned and may change on subsequent connections. The real-time IP can be viewed in the router’s device list.

• Open the “Easy TCP–20” app and click “CONNECT”. Upon successful connection, the green light will revert from a 2-second flash to a steady state. You can then issue commands to control the relay switch.

Important Notes:

• The initial configuration of the WiFi password may take longer (around 1 minute). Subsequent boot-ups will typically connect automatically within 20 seconds.

• If changing the router, a power cycle or pressing the S2 button will clear the previous WiFi credentials. Reconfigure the ESP–01 module with the new WiFi account and password in Mode 2.

• If the WiFi signal for the ESP–01 module is weak, the green light may extinguish, indicating a failed connection attempt. The module will try to reconnect automatically, with the green light flashing slowly during this process.

• Both Mode 1 and Mode 2 require the green light to flash slowly or be steady for further configuration or during the waiting process. The key input will be inactive during this time.

• The ESP–01 module lacks a timeout mechanism; if connected to mobile data for more than 6 minutes, TCP will automatically disconnect. Re-establish the connection via the “EasyTCP–20” app by tapping

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