DIYmall 2 Channel Relay Module GSM Remote Control Switch SMS Manual

Before using this device, please send a text message for authorization first. Then you can send a message command to control relay.

Authorized number configuration: This system supports up to 3 authorization numbers. Format:*code*# N Authorized number #, after setup successfully, the device will reply, SMS Content is: User(N) Number: number is set ok.
For example, if system code is 123456, and you want to set the first authorized number is 18846919911, you can send the SMS:*123456*#118846919911#
The device will reply, content is: User1 Number: 18846919911 is set ok! The new authorization number is saved in the device; and you want to set the second authorized number is 18846919900, you can send the SMS:*123456*#218846919900#
The device will reply, content is: User2 Number: 18846919900 is set ok!. The new authorization number is saved in the device.

Code configuration: Format: *6 old code number**6 new code number*. After setup successfully, the device will reply, SMS Content is: SYS Code: 6 new code numbers set ok. For example, if system code is 123456, you want to revise the new code is 666666, send the SMS:*123456**666666*
The device will reply, content is: SYS Code: 666666 Set OK. Note that only authorized number can change the code. The new code is saved in the device.

The cell phone SMS control
Relay1 On command: ON1, after successful setup, the device will reply SMS is: REALY1 set on! For example, send the SMS: ON1. Relay status will be saved

Relay1 Off command: OFF1, after successful setup, the device will reply, SMS Content is: REALY1 set off! Send the SMS: CMOF. Relay status will be saved

Relay2 On command: ON2, after successful setup, the device will reply SMS is: REALY2 set on! For example, send the SMS: ON2. Relay status will be saved

Relay2 Off command: OFF2, after successful setup, the device will reply, SMS Content is: REALY2 set off! Send the SMS: OFF2. Relay status will be saved

System status query instruction: STA. For example, sends the SMS: STA. The device will reply the state of two relay

Any question please email sales@diymalls.com

ebay link: https://www.ebay.com/itm/273103300932
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website link:

SIM800L GPRS GSM Module DIYmall

What you need 
SIM800L module X 1
GSM Antenna X  1
CP2102 Module X 1
Several Cables
DC Power Supply
Software SSCOM3.2

NOTE: The input voltage is  3.7-4.2V

Connection:

SIM800L      CP2102         DC Power Supply
TX                   RX
RX                   TX
GND                GND             GND
VCC                         VCC( 3.7-4.2V)


Open software SSCOM3.2, then you can send AT command:

For more AT command, please download from this link 
https://drive.google.com/open?id=1MR7HtLoeCq7svqtESLwl7Z8-Zvt40XwQ

Where to buy?
Product link http://www.diymalls.com/index.php?route=product/product&product_id=71&search=SIM800L

eBay link  https://www.ebay.com/itm/182736378127

aliexpress link  http://aliurl.cn/CUUDOG

Bulk order please contact sales@diymalls.com