RANGKAIAN ALARAM KEBAKARAN NE555

Fire alarm circuit using LDR (Light Depending Resistor) as light sensor. It warns the user against fire accidents. It relies on the smoke th...

NE555 Rain Alarm Circuit

Rain Alarm using NE555 SchematicThis circuit gives out an alarm when its sensor is wetted by water. A 555 astable multivibrator is used here...

Rangkaian Sirine Polisi Sederhana

This is a police alarm circuit. The two 555 timer ICs used as astable multivibrators. The frequency is controlled by the pin 5 of the IC. A...

SKEMA RANGKAIAN ALARM MOBIL

GAMBAR SKEMA RANGKAIAN ALARM MOBILThis FM radio-controlled anti- theft alarm can be used with any vehicle having 6- to 12-volt DC supply sys...