The earliest biosensor was designed back in 1950 by American biochemist “L.L Clark”. This Biosensor was appplied to determine oxygen in blood, and the electrode employed in this kind of […]
Small Tracking Transmitter Circuit
Whether it is for spying on somebody or something, or for safeguarding a particular object, this tiny tracker transmitter will serve the purpose with extreme efficiency. This transmitter is so […]
Flood Detector Warning Alarm Circuit
A flood can occur suddenly due to a cloud burst or due or consistent rains. Floods can cause huge damage and loss to lives and property if it is not […]
Motor Boat Sound Generator Circuit
Imagine a motor boat running all around in your room. For this you neither need water nor a big bulky wooden frame with a heavy engine fixed to it, but […]
Types of Biometric Sensors and Its Working
The phrase biometric comes from the Greek words bio and metric. Where bio signifies life and metric suggests measurement. Biometrics are accustomed to determine physical and mental qualities of a […]
AC Waveform Circuit Theory
Direct Current or D.C. is a type of electric current which moves through an electrical circuit in a single direction only, rendering it a “Uni-directional” power source. Typically, DC currents […]