Mobile Phone Detector circuit diagram | Cell Phone Detector

Mobile Phone Detector circuit diagram | Cell Phone Detector

Here is the circuit diagram of Mobile phone detector. This detects when any mobile phone active in this range. Active means when incoming, outgoing, sms transmission, or audio/video transmission by mobile. This detects signal of active mobile phone even in silent mode. This is useful in that places where mobile phone is prohibited like Offices, Classroom, Hospitals, Exam hall etc

Automatic DC FAN controller circuit

Automatic DC FAN controller circuit

Automatic Temperature controlled DC FAN Controller Circuit  We use many electronic gadgets like power Amplifiers, SMPS, Inverters and AC-DC converters etc. These gadgests uses ICs that generates more heat during opetation and required any temperature controller for Cooling to control the heat for protecting the devices. This circuit is ideal to control the cooling fan of heat generated electronic gadgets […]

IR Based Security Alarm Circuit

IR Based Security Alarm Circuit

Automatic Door Security Alarm System Introduction This is used to any Door or Gate to Detect Any human person or any animal pass across gate. When Any Crosses the gate then Automatic alarm beeped for some duration and then after automatic stopped. So even any person or gateman or guard is not available at door, no any can entered through […]

Remote Controlled Switch for Appliance

Remote Controlled Switch for Appliance

circuit diagram of Remote controlled switch project (Single Load) • This is a schematic circuit diagram of a remote controlled switch for home appliance. • TSOP1738 used in the circuit for detecting of IR signal from remote. •  This circuit works with any infrared remote using for TV, DVD, USB player etc. In this circuit there are two relays are used, first relay […]

555 Timer ic Tutorial

555 Timer ic Tutorial

  555 Timer   This is very popular and most common using ic used for various purposes in electronics area.  555 timer ic is widely used in many electronics circuits for generating pulses, timer/ delay,  for oscillation , tone generator, led light flasher, , multivibration etc . This ic especially designed to accurately produce the required output waveform with the requirement […]