GSM SMS Controller 2-Channel Relay Module Mobile Phone Remote Control Water Pump Server Restart

GSM SMS Controller 2-Channel Relay Module Mobile Phone Remote Control Water Pump Server Restart

1. Overall Instruction:
1.1. By sending SMS, the content is 1 on, 1 off, 2 on, 2 off. Query to control or query the device relay output or status.
1.2. Relay state is saved in the device. It can be restored to the state before power-off when it is powered on again. When controlling, it can only be sent through the authorized number, and the authorized number is stored in the device.
1.3. The authorized number can be changed by SMS. When changing the authorized number, the secret key verification is required, and the secret key is stored in the device. The secret key can be changed by SMS. When changing the secret key, the previous secret key verification is required.

2. Hardware Interfaces:
2.1. Power supply interface: two pins, 5.0mm spacing, marked VCC & GND. Power supply voltage: 9V-36V. When using a 5V power supply, the current must be 1.5A or above. Two-way relay output interface: 5.0MM spacing. They are COM1 A1 B1, COM2 A2 B2.
2.2. MICRO-SIM card holder: The SIM card holder is on the back of the board and is a flip-type card holder. Insert a SIM card when the system is powered off. Supports for China Mobile Communications and China Unicom 3G, 3G, 4G SIM cards, but does not support for China Telecom SIM cards.

3. Parameters:
3.1. Power supply voltage: 9V-36V. The current must be 1.0A or above.
3.2. LED lights: 3 LED lights, namely D6 (WORK), D7 (ERR), D3 (NET). Among them: D3 is the network indicator. After the system turns on, since GSM has not registered the network, the flashing state of this LED is 1 second on and 1 second off. After about 10 seconds, when the GSM is registered to the network, the LED flashes in the state of 1 second on and 3 seconds off. D6 is the system working indicator. After the system is turned on, this LED light will be on. When the system is ready, the LED will be off for 1.5 seconds and flashing for 1.5 seconds, and you can send SMS to the device. D7 is the system error status indicator. When this LED is on, it usually means that SIM card is not inserted properly. Please install the SIM card again.
3.3. Relay output capability, the selected relay is a 250V 10A relay.

4. System Default Configuration:
For any configuration of the system, the default configuration of the system is: secret key, 123456; authorization number 1: 15124532672, authorization number 2: 15124532672, authorization number 3: 15124532672.

5. SMS Settings:
5.1. Authorization number configuration: Format: *Secret key*#Mobile Phone Number#. When the setting is successful, the device will reply in SMS: User1 (or User2 or User3) number: number is set ok! . The initial key of the system is 123456, and N is the 1-3 authorization number. If the system secret key is 123456, the first authorized number to be configured is 18846919911, then the command sent is: *123456*#118846919911#. The system responds in SMS: User1 number:18846919911 is set ok!.
5.2. Secret key setting: Format: *6 digits original secret key **6 digits new secret key*. After the setting is successful, the device will reply in SMS: 6 digits secret key set ok. If the system key is 123456, the new key to be modified is 666666, then the command sent is: *123456**666666*. The system will reply in SMS: Sys code: 666666 is set ok.
5.3. Set the state of the relay, the command is 1 on, 1 off, 2 on, 2 off. The system will reply: REALY1 set on! Or REALY1 set off! REALY2 set on! Or REALY2 set off! .
5.4. Query the status of two relays, the command is query. The system will reply the relay status.

Applications:
- Farmland irrigation
- Greenhouse
- Server room
- Pet feeding
- Oxygen pump
- Roller shutter

Package Included:
- 1 x 2-Channel Relay Module with GSM Antenna