I finally have my wireless temp sensor on a circuit board. Messy, cables all over the place, but it works. Yay. Definitely more reliable than the breadboard version.
I dropped it on the floor while soldering and when I tried programming it didn't work. Thought I'd broken it but forgot I need a 16MHz crystal attached before I can set it to 4MHz using the built in clock. And then it still didn't work so I definitely thought I'd broken it but I had the USBasp connected incorrectly.
2,2015-11-28 07:46:49,17.75,2.854
2,2015-11-28 07:50:24,17.625,2.854
2,2015-11-28 07:52:47,17.5625,2.861
2,2015-11-28 07:57:34,17.625,2.854
2,2015-11-28 08:02:21,17.6875,2.854
2,2015-11-28 08:04:58,17.75,2.861
2,2015-11-28 08:08:34,17.6875,2.877
2,2015-11-28 08:09:45,17.75,2.877
2,2015-11-28 08:10:57,17.8125,2.854
2,2015-11-28 08:12:09,17.75,2.854
2,2015-11-28 08:13:21,17.6875,2.877
2,2015-11-28 08:14:32,17.75,2.877
2,2015-11-28 08:19:19,17.8125,2.854
;)