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DIY Piano

Piano is developed by connecting a 555 timer ASTABLE multivibrator with variable frequency to a speaker. Piano is a wonderful...

IR Based Security Alarm

IR based security alarm circuit can detect any movement and trigger the alarm. This circuit is very useful in homes, banks,...

Remote Controlled Light Switch

IR LED emits infrared light, and used in TV remotes. This Infrared is received by the receiver TSOP17XX (TSOP 1738used in TV)....

2 Digit Object/Product Counter

Object counters or product counters are important applications used in industries, shopping malls, etc. They count objects or...

DTMF Based Home Automation

We use many different types of communication in control applications to control home appliances, industrial appliances, and...

Cell Phone Charger Circuit

Mobile phones generally charge with 5v regulated DC supply, so basically we are going to build a 5v regulated DC supply from...

Fire Alarm using Thermistor

Fire alarms are prime necessities in modern buildings and architectures, especially in banks, data centers and gas stations....

Simple Metal Detector Circuit

You can find a metal detector at airports, theaters and various other public places. They are used for the safety of people to...

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