This circuit can use a pendulum sensor. We found this configuration in a 1994 publication. The components used are common and the timing is given by the capacitor C1 which can be changed.
This circuit has a very fast switching action from an input signal. It can be applied to almost any...
This circuit drives 10 LEDs in sequence at a speed that depends on the setting of P1. For 9 or 12 V...
The amplifiers of the LM3900 can also be used as voltage comparators in several projects. The...