GSM plug is a normal plug but with a great advantage: you can power it on by sending an SMS.
How does it work :
- GSM-plug is an independent controller which can be guided through a GSM network available.
- It is based on gsm-shield for Arduino which accepts short messages (SMS).
- A simple communication protocol with simple commands is built in the GSM-plug in order to control any device connected to the GSM-plug.
- This is shown here with a lamp connected to it that can be turned on or off through any mobile device by sending the relevant command.