Technologist Mark Armstrong needed a way to remotely control devices on a remote location, including the hot water system. The ability to control this remotely saves money in that he only needed to have hot water only when at the location. This problem was solved with a system based around a Freetronics EtherTen, various relays, WiFi router and Internet access. It polls a public MySQL database which contains the desired settings for the HWS and appliances Using an iPad application or a custom Windows program these settings can be changed, thus being read by the remote EtherTen and actioned.
One of the features of this project is that you don’t need a static IP at the remote location, as the EtherTen is polling a remote database for control instructions. For more information and notes, visit Mark’s website here. And for more, we’re on twitter and Google+, so follow us for news and product updates as well.
When putting together your next Internet-enabled Arduino project – save time, space and money with the Freetronics EtherTen. Apart from being fully Arduino Uno-compatible, it has onboard Ethernet, microSD socket, full USB interface (so you don’t need a costly FTDI cable just to upload a sketch!) and supports optional Power-over-Ethernet.