Here we have three choices, with which we can make electronic switches that use our touch or pressing (push button). [more]
This circuit is a double direction flash. Similar to Digital Ping- Pong 1, there is a movement of a lit dot, up and down along the LED's length. [more]
This circuit us gives the sense of movement of ball up down, after the LED turn on successively the one afterwards the other. As soon as it reaches in the one or in the other... [more]
The measurement of signals of low frequency is enough difficult in enough cases. Most meters of frequency have specifications, for measurement of frequency until 50 HZ or 100HZ and the depiction, if they are drive... [more]
This circuit will divide the frequency of a TTL compatible square wave signal by a factor from 0 to 999. [more]
The SamClock RINGER, constitutes natural extension of digital clock SamClock. [more]
It ιs a simple circuit for the noise reject that exists in the telephone line in ADSL connections. It works in PSTN and ISDN lines, and is placed in line and before the telephone appliance. [more]
This circuit makes the work, this detection of discharge, protecting the batteries from destruction. At the discharge the polar voltage of batteries 12V of Lead acid, is not allowed it is decreased under 10.8V, thus... [more]