THE RISE in crime rate is normal to the overall western world, and is apparently relevant to wealthiness instead of to poverty as was formerly assumed by a lot of […]
Anti Theft Automobile Alarm Circuit
This anti theft automobile alarm circuit can be used for safeguarding cars and automobiles from thieves and burglars. THIS KIND OF UNIT FUNCTIONS through the vehicle supply, and it is […]
Temperature Alarm Circuit
This temperature alarm circuit permits a concurrent checking of a maximum of four temperatures. The individual detectors are attached to the main control unit by using a set of wires. […]
Simple Water Sensor Circuit with Alarm
Water sensor is a little unit which is used to give an audible alarm when a hose of the washing machine has burst or when it starts to rain, so […]
Bicycle Light and Alarm Circuit
The post illustrates a simple bicycle light circuit which can be used as a normal front/back indicator lights, and also as an emergency alarm signal such as an SOS signal. […]
High Voltage Alarm Circuit
This circuit will raise an audible alarm as soon as the battery voltage goes above a predetermined over voltage limit. The astable section of a high voltage alarm is similar […]