A simple text message (sms) from a mobile phone is all that is required to switch 4 relays.
4 opto isolated inputs.
8 analogue to digital convertors.
The board can be set up in GPRS mode
enabling cheap data transfer or even Email.
A colour camera VGA 640*480 pixel is availiable allowing you to take pictures by sending the controller board a text message.
Alternatively one of the inputs could be triggered and then the picture taken could be automatically sent to a picture phone or PC.
4 temperature channels.
Visit the The Electronic Development Co. Ltd. website for more information on GSM Controller Boards