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Newly Updated Circuit Projects:

Security Alarm Circuit using RCWL-0516 Microwave Radar Sensor

Last Updated on August 22, 2024 by Swagatam 9 Comments

microwave radar intruder security alarm circuit

This security alarm circuit using RCWL-0516 microwave radar motion sensor will detect any moving thing in the restricted area and turn ON an alarm sound. The RCWL-0516 is basically an advanced motion sensor using microwave radar signals. I have already discussed the working of RCWL-0516 elaborately, which you can read for more details. Circuit Description The […]

Filed Under: Security and Alarm Tagged With: 0516, Alarm, Microwave, Radar, RCWL, Security

Insect Light Trap Circuit for Protecting Crops

Last Updated on September 25, 2026 by Swagatam 4 Comments

crop field insect protector solar circuit diagram

This solar LED light trap circuit for insects can be used to attract insects at night and keep them engaged with the light source. This distraction created by the LED light will keep the insects from flying towards the crops and save the crops from these harmful pests. The circuit design was requested by Mr. […]

Filed Under: Pets and Pests Tagged With: Crops, Insect, Light, Protecting, Trap

Smart Street Lamp Circuit with Motion Sensor

Last Updated on August 23, 2026 by Swagatam Leave a Comment

mart street light circuit

This simple yet highly sophisticated, smart LED street light circuit automatically switches ON a street lamp from low brightness to high brightness whenever it detects a moving object underneath it. This action is initiated only during nighttime, while during daytime the street lamp remains completely shut off. What this Circuit will do This advanced automatic […]

Filed Under: Automation Projects, Lamps and Lights Tagged With: Lamp, Motion, Sensor, Smart, Street

Mains AC Home Protector Circuit

Last Updated on March 10, 2024 by Swagatam 200 Comments

home protector circuit

This simple mains 220 V, 110 V AC voltage home protector circuit will protect all the mains operated appliances of your home from high and low voltage situations and also from sudden voltage surge. The circuit can be used with 220 V AC inputs and also with 110 V AC inputs. The circuit will basically […]

Filed Under: Voltage Control and Protection Tagged With: AC, Home, Mains, Protector

Use this Battery for 50 Years without Charging

Last Updated on May 17, 2026 by Swagatam 4 Comments

betavolt battery

A novel battery technology, developed by Beijing-based firm Betavolt, has been introduced. It boasts an astounding 50-year lifespan without the need for maintenance or charging. With 63 radioactive isotopes contained in a module the size of a penny, this ground-breaking nuclear battery is a leader in the field of atomic energy miniaturization. https://twitter.com/Byron_Wan/status/1746801325722239367/photo/1 Advancements in […]

Filed Under: Battery Charger Circuits Tagged With: Battery, Charging, without, Years

Automatic Night Activated Wireless Light Circuit for Paintings

Last Updated on June 8, 2026 by Swagatam 12 Comments

single relay 433 MHz remote control switch

In this article I have explained a basic wireless LED light circuit that may be used to autonomously turn on LED lights to illuminate artworks at nighttime.

Filed Under: Automation Projects, Lamps and Lights Tagged With: Activated, Automatic, Light, Night, Paintings, Wireless

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