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Smart Street Lamp Circuit with Motion Sensor

Last Updated on June 1, 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

Smart Emergency Lamp Circuit with Maximum Features

Last Updated on June 1, 2026 by Swagatam 120 Comments

smart E light

In this post I have explained about a simple yet sophisticated automatic emergency light circuit which can be considered “smart” due to the involved advanced features and an inexpensive design. The idea was requested by Mr. Lokesh. Technical Specifications Hi sir, I am so glad to see your interest towards electronic circuits. So eagerly waiting […]

Filed Under: Lamps and Lights Tagged With: Emergency, Features, Lamp, Maximum, Smart

BQ24295 Smart Battery Charger IC with Boost + OTG

Last Updated on May 18, 2026 by Swagatam Leave a Comment

This BQ24295 IC is like a super smart charger chip. This one is not just for charging battery, but also doing many other jobs like boost converter, USB detection, power path control, and even OTG (host power supply). So we can say that this is a full battery charging and power management IC. Let us […]

Filed Under: Battery Charger Circuits, Datasheets and Components Tagged With: Battery, Boost, BQ24295, Charger, OTG, Smart

3 Smart Li-Ion Battery Chargers using TP4056, IC LP2951, IC LM3622

Last Updated on May 17, 2026 by Swagatam 60 Comments

TPelectrical

These smart, intelligent battery charger will charge a Li-IOn battery rapidly by monitoring 3 crucial parameters, which are constant current, constant voltage and constant 25 degrees Celsius temperature. The post elaborately explains 3 Hi-End, automatic, advanced, single chip CC/CV or constant current, constant voltage 3.7V Li-Ion battery charger circuits, using specialized Hi-End IC TP4056, IC […]

Filed Under: Battery Charger Circuits Tagged With: Battery, Chargers, LM3622, LP2951, Smart, TP4056

Smart Buck-Boost MPPT Solar Charger Circuit for 12V 24V Battery

Last Updated on May 17, 2026 by Swagatam 2 Comments

In this post we are going to learn how we can make one real working smart solar battery charger circuit which can do MPPT charging. We are using Arduino Nano as the brain for controlling everything. We will also use INA219 sensor module so that we can read the solar voltage and current properly. And […]

Filed Under: Battery Charger Circuits, Solar Controller Circuits Tagged With: Boost, Buck, Charger, MPPT, Smart, Solar

Smart Bathroom Exhaust Fan Controller Circuit with Sensors

Last Updated on May 14, 2026 by Swagatam 23 Comments

So here we are now making one automatic smart exhaust fan controller system using Arduino UNO which will work for three bathrooms that are all connected to a single ventilation pipe and one common exhaust fan. This whole project is going to be based on PIR sensors for human detection, VOC sensors for odor detection […]

Filed Under: Arduino Projects, Sensors and Detectors Tagged With: Bathroom, Controller, Exhaust, Sensors, Smart

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