5V ESP8266 Dual/Single WiFi Relay Module Internet of Things Smart Home Mobile APP Remote Control Switch

5V ESP8266 Dual/Single WiFi Relay Module Internet of Things Smart Home Mobile APP Remote Control Switch

Description:

The 5V ESP8266 dual WIFI relay module uses the ESP8266 chip. It only needs a simple configuration process to realize the wireless control of the 2 relays in the local area network using the mobile phone APP.

Features:

1. Onboard ESP8266 chip;

2. The module has 2 working modes:

Mode 1: The mobile phone is directly mounted on the ESP8266 chip;

Mode 2: The mobile phone and the ESP8266 chip are mounted on the router at the same time;

3. Transmission distance:

(1) In an open environment, when the mobile phone is mounted on the ESP8266 chip, the maximum stable transmission distance is 100m;

(2) When the ESP8266 chip and the mobile phone are mounted on the router at the same time, the transmission distance depends on the signal strength of the router.

4. Use Smartconfig technology to complete the configuration of the ESP8266 chip account and password on the mobile APP. The configured account and password have the power-off memory function;

5. Onboard 5V, 10A/250V AC 10A/30V DC relay, which can be activated continuously for 100,000 times, has diode effusion protection, and has a short response time;

6. On-board mode selection indicator;

7. Reserve the ESP8266 chip program download interface.

Hardware introduction:

Board size: 42.8*62.4mm

Weight: 30g

Board function:

1. Introduction of onboard resources:

IN+, IN-: 5V power input;

5V, TX, RX, GND, IO0: program download interface;

Button S1: Short press the mode switch, long press 2S to clear the password

Button S2: Reset button

LED D4 and D5 (red light): Relay working indicator, light up when it is turned on

LED D2 (red light): power indicator

LED D1 (green light): Mode indicator, described as follows:

(1) Mode 1 when it is off;

(2) When 1S flashes once, it means waiting for the mobile APP to configure the WIFI account and password for the ESP8266 module;

(3) When it is always on, it means that the TCP connection is successfully established with the mobile phone.

COM1: public terminal;

NC1: Normally closed, the relay is short-connected with COM1 before it is closed, and it is suspended after it is closed;

NO1: Normally open terminal, the relay is suspended before the pull-in, and short-circuited with COM1 after the pull-in.

COM2: public end;

NC2: Normally closed terminal, the relay is short-connected with COM2 before it is closed, and it is suspended after it is closed;

NO2: Normally open end, the relay is suspended before being closed, and shorted to COM2 after being closed.

Relay control command (hexadecimal hex format):

Turn on the first relay: A0 01 01 A2

Close the first relay: A0 01 00 A1

Open the second relay: A0 02 01 A3

Close the second relay: A0 02 00 A2

2. Prepare the following tools and software before use:

(1) 5V/1A power adapter, the positive and negative poles of the power supply are respectively connected to IN+ and IN- of the module;

(2) Install the APP “EspTouch_Demo” on the Android mobile phone, which is used to configure the WIFI account and password for the ESP-01 module when using the working mode 2 for the first time;

(3) Install the APP “EasyTCP_20” on the Android mobile phone, a TCP transmission tool used to send relay control commands, click “SWITCH”, and then long press the gray square in the interface to input the name and content of the 2 relay control commands (instruction format) It is in HEX format).

3. Instructions for operating mode 1 (the phone is mounted on the ESP8266 module):

(1) Power on the module as follows:

(2) The AP hotspot signal sent by the ESP8266 module connected to the mobile phone

(3) Open the “EasyTCP_20” APP, click “CONNECT”, enter the IP address: 192.168.4.1 and port number 8080, and then click “Connect”. After the connection is successful, click the gray square to send instructions to control the relay switch.

4. Operating mode 2 (mobile phone and ESP8266 module are installed on the router at the same time) instructions for use:

(1) Power on the module, press the S1 key to switch to mode 2, the green light turns from off to 1S on once, indicating that it is waiting for the “EspTouch_Demo” APP to configure the WIFI account and password for it

(2) At this time, the mobile phone is connected to the router first, open the “EspTouch_Demo” APP, enter the router password, and click “Confirm”

(3) Wait for the configuration to be successful. When the IP address of ESP8266 (such as 192.168.0.189) appears on the APP interface, it means that the ESP8266 module is successfully connected to the router, and the account and password are automatically memorized. The next time you enter mode 2, it will automatically connect

It should be noted that the IP address 192.168.0.189 is dynamically assigned to the ESP8266 module by the router. The address may change after the next reconnection. You can check the real-time IP address of the ESP8266 module in the device list of the router.

(4) Open the “EasyTCP_20” APP, click “CONNECT”, enter the IP address of the ESP8266 module: 192.168.0.189 and port number 8080, and then click “Connect”. After the connection is successful, the green light will change from slow flashing for 1 second to constant light Click on the gray square to send instructions to control the switch of the relay