Description:
Power supply interface: Power supply voltage: 3.4-4.4V, the current must be guaranteed 1.0A or above.
Relay interface: Using AC125 0.4A; DC30V 1A relay.
SIM Card Socket: Insert NANO SIM card when system powered off.
Frequence: 850/900/1800/1900MHz

Support: 2G

Control: SMS GSM  

Master control: STM32F103C8T6 controller

Indicator light: Equipment status light, network light, relay status light

Command:
Code: 123456
Relay on command: CMON
Relay on command: CMOF
Reply for SMS command: Reply

There are four modes to control:
Mode 1:
The cell phone calls control. When the relay is in a state of off, user make a call to the controller with the authorized phone. When this call connects, user can hear 3 ring of the bell, and then the call will be automatically hung up, and the relay will be in the state of on. When the relay is in a state of on, user makes a call to the controller with the authorized phone. When this call connects, you can hear 2 ring of the bell, and then the call will be automatically hung up, and the relay will be in the state of off. This control mode, the state of the relay will be saved.

Mode 2:
The cell phone calls control. User makes a call to the controller with the authorized phone. When the device receives this call the relay will be in the state of on. When this call is disconnected, the relay will be in the state of off. This control mode, the state of the relay will not be saved.

Mode 3:
The cell phone calls control. User makes a call to the controller with the authorized phone. When the device receives this call the relay will be in the state of on for 1-2 second, and then the relay will be in the state of off, and the call will be automatically hung up. This control mode, the state of the relay will not be saved.

Mode 4:
The cell phone SMS control.
1)Relay On command: CMON, after successful setup, the device will reply SMS is: ON Set OK! For example, send the SMS: CMON. Relay status will be saved.
2)Relay Off command: CMOF, after successful setup, the device will reply SMS Content is: OFF Set OK!  Send the SMS: CMOF. Relay status will be saved.
3)Relay on for only 1-2 second command: CMDD, after successful setup, the device will reply SMS Content is: Dian Dong Set OK! For example, send the SMS: CMDD. Relay status will not be saved.
4)Relay1 On for (01-99) second command: CMSEONSECS**, after successful setup, the device will reply: ON Set OK!TIME ** sec!! If you want set 99 seconds, you can send CMSEONSECS99. Relay status will not be saved.
5)Relay on for 01-99 minute command: CMSEONTIME (2 bit times), after successful setup, the device will reply, SMS Content is: ON Set OK! TIME ** sec! The timing range is 1-99 minutes. If you want to control Relay On for 1 minute, send the SMS: CMSEONTIME01. Relay status will not be saved.
6)Relay on for 01-99 hours command: CMSEONHOUR (2 bit times), after successful setup, the device will reply, SMS Content is: ON Set OK! TIME ** sec! The timing range is 1-99 hours. If you want to control Relay On for 99 hours, send the SMS: CMSEONHOUR99. Relay status will not be saved.
7)Factory reset command: CMGOTOINITSET, after successful setup, the device will reply: SYS Init OK! This parameter will be saved to the device.
8)Change IMEI command: IMEI** (** is the IMEI, the length of IMEI must be 15 bit). When successes, device will reply “Modifying IMEI succeeded”

Package Included:
1 X SIM800C Module
1 X GNS Antenna
2 X 1.25mm Connector

 

FAQ
Q: Does it work in switzerland with a swiss sim card?
A: If your swiss sim card is 2G, it can work.