Current progress. Not finished, still waiting for magnets to arrive so I can finish off and paint, but working nicely.

That's very cool, not sure about the big cutouts that are still visible in the hatch though. Take it you couldn't do it any other way?

Yeah, that's the worst bit. I'm planning some sort of flap to cover them. Probably on a hinge with a magnet. They'll definitely be covered somehow. Got loads of MDF left to play with.

It's because of the way the ladders are mounted along with the door opening into the attic. If it opened downwards that would cover everything, but it's a massive door that I wanted opening upwards. The size and shape of the holes are due the opening angle.

First time I've played with this for ages. Forgotten how to connect up my USBASP to program the board.

My temp sensor has stopped working a while ago and I hadn't bothered getting it going again. Tonight I've added a diagnostic mode to it. Got a button on it which, if pressed when turning it on, sets the sensor to diagnostic mode. Then some LEDs flash to let me know if it's reading a correct temperature and if the data is being sent.

Before I had nothing to let me know it was even switching on.

Want to make a proper soldered board at some point. Got enough bits to make a few of them at least.

Grr. It stopped working again. Worked last night for only an hour, reset it this morning and it's stored after an hour again.

Did you remove the line of code that tells it not to stop after an hour?
 

Haha. I'll comment that line out later and try again :D

Loose connection I'm thinking. I had it running for about 5 hours last night, the lights had stopped flashing when I got back from the comedy club. Have it a tap and it came back on.

The new Pi Zero looks interesting.

Looks like I'll be buying some of those!

I'm sure I'll get some too, no idea what for yet.

They're giving one away free with the MagPi magazine, going to see if the local ASDA has one.

Oohh, I'll see if I can pick one up on the way home somewhere.

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.

:D

It's amazing how prolific, and easy to get started with, stuff like this is now. Love it.

Yes, they're awesome. And logs of fun :)

Next I want to design my own PCB so I can just solder all the components straight to a board, if they're not too expensive.

Can you show me logs of fun?

There's a place you can order PCBs for remarkably low cost, trying to remember what it's called...

SEEEEEEEEED!

http://www.seeedstudio.com/service/index.php?r=pcb

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

;)

I love the quizzical change in direction. Definitely looks like a log of fun.