In this article I will comprehensively discuss a relatively accurate electronic heart rate sensor circuit processed by a few discretely wired opamp circuit stages, and subsequently we’ll learn how this can be modified for making a heart rate monitor alarm circuit. Using IR Photodiode Sensors The sensing of the heart pulses is basically done by […]
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Wireless Helmet Mounted Brake Light Circuit
In this post I have explained an innovative wireless LED brake light circuit which can be attached to a biker’s helmet. The LEDs attached with the helmet circuit illuminates in response to the motorcycle braking generating an enhanced brake light effect from the user’s helmet. The idea was requested by Mr. Bugoy. Technical Specifications Good […]
Free 200 Volts Just Above your Head
Lightning in skies is the phenomenon which proves beyond doubt that free electrical energy could be there in abundant quantities all around us. Warning: The concept I have explained in this article has not been verified by the author. Readers are advised to read and proceed at their own discretion. Power of Thunder Lightening A […]
Remote Controlled Pulley Hoist Mechanism Circuit
In this post I have explained a self locking worm gear mechanism for hoisting heavy loads through an electrical motor. The main feature of the system being its self locking in an event of a motor failure. The idea was requested by Mr. Amit Patkar. Technical Specifications I love electronics, especially automation, I have been […]
Laptop Anti-theft Security Alarm Circuit
In this post I have explained a simple laptop anti-theft alarm circuit which can used with any concerned object such as a laptop which needs to be protected, when an intruder tries to approach the unit or makes an attempt to steal it the connected alarm is instantly raised. The idea was requested by one […]
Infrared (IR) Controlled LED Emergency Lamp Circuit
Here I have explained a an emergency lamp circuit which includes an infrared remote operated brightness control feature. The idea was requested by Mr. Heeran Technical Specifications Can you please help me with two circuits. I want to build a backup led emergency lamp that works via an infrared remote . I want it to […]