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I made a circuit with a DS2413 to look for external switch on/off. Is it necessary to add a capacitor on the DQ line to avoid 5V loss when the master sends reset? Which uF and how should I connect it? Should I put also a diode? I put my circuit, could you modify it with the capacitor? Thank you.

I wrote a prog in C with the TMEX api to drive a Hobby Board IO 8ch. I have two questions: 1) (not crucial) when I control the logic or output state I get a sequence of 1 bit to tell the off state of relè. Shouldn't be the opposite: 0 means relè is off? I.e: relè 2 is on: I get a byte of...

I made this circuit to get contact clicks from the lamping led light of Energy meter: http://www.flickr.com/photos/5volt/3356938784/ Instead of the K1 relè going to mouse button, I connected the relé to Dual Counter input A. Also, I changed the R4 to about 5k and C1 to 0.22microFarad...