Posted by: stratolife | September 23, 2008

Late night show

Well, before I climb my bed I will tell you a bit of what I’ve done so far during the last days.

There were a lot of changes. Some steps forward, some steps back.

First of all I can say that we do have two fully soldered and working main boards now. That’s great, but some other things didn’t end up successful like this that far. The first UartMerge I had done and from that I thought it would work did not work when using two boards. Well I found the reason for that (for those who are interested in: I hadn’t realized that the UART-Lines are high on inactivity which made mad problems with the open-collector based OR) and had to redesign and resolde the board almost completely. The new version is not fully tested yet, but receiving from board does work, sending unknown…

The second problem was the extension board. Multiple reasons forced me to redesign it: Support for heaters was needed, cause of heat management, the MOSFETs should be placed at one end of the board so that they can be connected with a cooling plate and – the most important point – I wanted to have the electronic well-arranged in an own box. For that I had to design the board for solid mounting (e.g. add holes for srews). Well, in spite of everything I already successfully finished designing and soldering this board.

Another board that still had to be built was the power board. Because of my new concept for the box (which i already partly realized in some CAD drawings) this board had to be redesigned, too. To save place I integretade the voltage control module. Yeah and this board will be my work for tomorrow, oh sorry, I meant for today. Yes my late night show is a bit to late.

“Yes bed, I’m coming”

You see, my bed is not able to sleep without me, so I have to accompany it. Good night 😉


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