Provade att ladda ner en av We7’s filer igår. Tog c:a en minut sedan var reklamen borta….jag undrar hur dom ska få det hela att gå runt ekonomiskt…

Nu har grannen klippt sina buskar, det tackar vi för! Riktigt prydligt blev det också!

Efter mycket betänkande har vi nu skaffat oss vår första GPS, en Garmin Nüvi 660. En mycket trevlig liten apparat. Har inte hunnit testköra så mycket ännu, men oj vad lättskött den är! Den har dock en nackdel – man kan inte radera POI:er direkt på enheten.

As I’ve previously stated, the FF2DB now parses both date-sorted and static (new data added at end of file by third-party application, never deleted) files. The two parses can work simultaneously and independent of each other.

I’m currently optimizing the application and making it a bit more user-friendly. The user interface isn’t much for show, but it is not supposed to be – the application’s strength is its parsing capabilities.

I’m now back from Malta, and hoping to continue the work on TWatch soon.

After some thought and some great help from the guys over at www.varmepumpsforum.com I’ve come to the conclusion that my sensor GT1 (radiator return) was misplaced!

The handyman who installed my heat pump apparently didn’t know what he was doing. He had placed it on the return pipe from the by-pass tank to which the heat pump is connected — this works only until someone (i.e me) decides to configure the heat pump so that the internal circulation pump (P2) only is active when the compressor is active to save another 46 Watts.

The problem is that when P2 stops, the circulation between the heat pump and the by-pass tank stops which in turn results in that GT1 doesn’t notice that the radiator water temperature drops (P1 is still active so the water is still flowing in the radiators). After a while the real temperature is down to room temperature, but GT1 gets a reading of 30C or more….

So where should GT1 be placed? Inside the drop-tube (unsure about the translation it’s “dykrör ” in Swedish) on the by-pass tank of course!

The piece of hardware I’ve been waiting for arrived today. As can be seen, it’s just a four-wire cable, with some circuitry for galvanic isolation in one end and a D-sub with an USB-plug for power supply.

The image shows how it looked like before I started working on it. Today the curcuit board is mounted inside the heat pump, and the D-sub is located at the computer in the other end of the house, connected with the cable I’ve previously mentioned.

The initial tests looks promising; now I’ve got to set up the logging properly and then write the applicationI’ve been thinking about that will parse the data and present it as diagrams. I know there’s an application that does this already, but I’ve got some additional things I want it to do.