This is one of the many 555 based car alarm circuits that we have on our website. We found it in a 90’s American documentation. The circuit has double timing.
This simple circuit with transistors turns on a small lamp when it gets dark. The sensor is an LDR...
This circuit is from an Electronic Design from the 90's. The circuit has excellent gain and must...
Only one LED is turned on when S1 and S2 are pressed. The LED that will be on is just the...