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Em interferences - what oscilloscope do I need to see them?
Hi all, you'll like this. I have build a MCU-driven circuitry for driving those ancient split-flap units from a train station. My problem is that each display unit is driven by...
Monday, 15 February 2016 - 21:35
What causes my LEDs ON?
Hey guys, I'm facing an interesting problem.   The attached schema is of a simple circuit that serially clocks in data to the shift register 74HC164 and individual shift...
Tuesday, 21 July 2015 - 19:40
CMOS circuit sensitive to touching
Hi guys, I couldn't find anything on web regarding this problem which I believe is quite general.   I have build (on a breadboard) a circuit with ATMega8, LCD, couple of...
Saturday, 7 February 2015 - 19:30