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Old 16-12-2016, 02:30 AM
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luka
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Join Date: Apr 2007
Location: Perth, Australia
Posts: 1,164
The boards are here and I spent most of the day soldering.

Step 1: solder the FTDI chip and the 3.3V power
The chip was detected on PC, everything worked fine. The 3.3V regulator is getting quite hot as the voltage is getting dropped from 12V to 3.3V. Bad design but there are several workarounds.

Step 2: solder the rest of the voltage converters
All voltages tested OK.

Step 3: solder AtMega328P, ADCs etc.
I soldered most of the other components but did not finish everything. Also I noticed that I had incorrect DD6 and VT1 so I ordered new ones. Probably won't have them before Monday.
VT1 is used to run the TEC so it is not critical. But DD6 is a show stopper. I suppose I can still flash the AtMega firmware without it and test that.

Also my DMSO finally arrived and one sensor is having a bath. The bottle leaked during the transport and I got the stuff all over my hands while unpacking. I suppose I am going for the "garlic taste ride" .

Brendan, what did you use to clean the sensor after the DMSO application?
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