September 24, 2013

Build an SMS-capable letterbox with Arduino

Waiting for an important letter, but don't want to wear out the path to the letterbox by checking it every half an hour? Or perhaps some nefarious characters are trying to steal your mail? Either way, it would be convenient to have an automated notification system - and an interesting version of such as device has been documented by Instructables user "nikoala3". It uses an Arduino, a SIM900 GSM shield and a light sensor to detect when the letterbox door has been opened. Upon which an SMS is sent to a mobile phone with the alert. 

At first thought the battery life may seem to be quite short for such a device, however most SIM900 shields can have the power to the GSM module controlled by a digital output pin - so the Arduino could activate the module only when necessary. In general this project may seem like overkill, it provides the framework for other Arduino-SMS notification systems. Nevertheless, visit the Instructable to get started. And for more, we're on twitter and Google+, so follow us for news and product updates as well.

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The package includes a wide variety of parts, sensors and modules including: a servo motor, lights, buttons, switches, sound, sensors, breadboard, wires and more. Furthermore a Freetronics Eleven Arduino-compatible board is included to make this an extensive hobby experimenter, inventor and starter kit. However we don't leave you alone to figure it all out, included is a great project and instruction booklet, plus access to a supporting web page and software examples. In other words - this is everything you need to get started for a fun range of electronics and Arduino related projects! So to get started or for more information and to order, check out the product page.

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