My brother lives in Alaska, and he just built a home this past summer. No Internet, no phone. Just electricity. He has to fill a 1500 gallon water tank in the town because he&#x27;s up too high to drill a well, there&#x27;s no running water.<p>He&#x27;s not too confident in his heater, and being away from home when it&#x27;s -20C for more than a few hours can do serious damage if the heaters not running. Most people would just use the Internet, but he can&#x27;t. So what do you do?<p>We scripted around APRS raw packets [1] and APRSDroid [2]. He bought some 1WIRE temperature sensors that are plugged into his OpenWRT WAP. The values are served up by apache,  and a $10 smartphone from craigslist reads the values and pipes them [3] through APRSDroid. This then goes via the headphone jack to his radio and it gets digipeated a couple times before it hits the &#x27;net.<p>Now he can watch his home temperature while he&#x27;s at work and not get worried. How cool is that?<p>[1] <a href="http:&#x2F;&#x2F;blog.aprs.fi&#x2F;2010&#x2F;03&#x2F;decoded-and-hex-raw-packets-default.html" rel="nofollow">http:&#x2F;&#x2F;blog.aprs.fi&#x2F;2010&#x2F;03&#x2F;decoded-and-hex-raw-packets-defa...</a><p>[2] <a href="http:&#x2F;&#x2F;aprsdroid.org&#x2F;" rel="nofollow">http:&#x2F;&#x2F;aprsdroid.org&#x2F;</a><p>[3] <a href="https:&#x2F;&#x2F;github.com&#x2F;sielickin&#x2F;local2aprs" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;sielickin&#x2F;local2aprs</a>