One Second Steps 555 Timer Circuit (0 To 59 S)

This is a design circuit for the linearity of 555 IC is sufficient to make 1 second precision, and this circuit employs the feature in this design. This timer step circuit can generate a timing steps from 0 to 59 s in 1-s intervals. This is the figure of the circuit;

Simple Pulse Timer Using 555 IC

This is circuit for pulse timer. This is a simple form of the circuit. This circuit is based on 555 timer IC. This is the figure of the circuit.


The operation of the circuit is IC connected as mono-stable multi vibrator. Input pulses are applied to the base transistor. It will conducting the transistor with IC. After those, IC will entry the timing cycle using set the R1xC1.