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Normally, you shouldn’t mount a polarizing filter on top of an UV filter. If you do, there are big chances that they will be hard to unscrew afterwards, mainly because of the rotating part of the polarizer. You will probably end up removing both of them from the camera, just like below: There are a few solutions [...] Update I’ve found some information regarding poor performance of the ADC and DAC of the XMEGA micros (see some info here, here, here and here). So far there are some workarounds and new devices might have fixed some problems, but I will not take this micro into account until i have clear info that it works. Another [...] 555 contest entry You might find yourself needing a low power H bridge for driving a motor like I once did. The 555 IC can drive a load up to 200mA, source or sink, which might make is usable as a driver, if one can control the output as desired. The Why? Although it is an unusual use for [...] |
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Copyright © 2012 Bogdan Raducanu Electro Bob - All Rights Reserved |
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