Auto night light on-off Circuit

Simple auto night light on-off circuit using IRFZ44N MOSFET. Automatically turns lights on at night and off during the day with efficient control.

Automatic Street Light Circuit

Build an automatic street light circuit using a BT136 triac. Lights turn on at dusk and off at dawn using an LDR sensor for energy-efficient operation.

Battery Charger

Build a simple 12V battery charger using a TIP120 transistor. Safely charges lead-acid batteries with automatic current regulation for protection.

12v Battery Level Indicator

Build a simple battery level indicator circuit to monitor battery charge. Displays voltage levels using LEDs for 12V batteries in a cost-effective way.

Battery Low voltage cut off Circuit

Protect your 12V battery with LM431 & TIP42C low voltage cut-off circuit. Automatically disconnects the load when the battery drops below safe voltage.

BC547 Touch Switch Circuit

Build a simple BC547 touch switch circuit. Turn on/off lamps or small devices by touch with a low-cost transistor-based electronic switch.

BC557 Transistor Project

Explore BC557 transistor projects for DIY electronics. Build amplifiers, switches, or LED control circuits using this PNP transistor in simple setups.

DC Motor Speed Controller Circuit

Control DC motor rotation direction with BC139 transistors. Build a simple bi-directional motor driver circuit for DIY robotics and electronics projects.

Component Tester

Build a simple component tester circuit to check transistors, diodes, resistors, and capacitors. Ideal for hobbyists and electronics beginners.

Convert 5v to 3-7v

Step down 5V to 3.7V using BC547 transistor. Simple voltage regulator circuit suitable for powering 3.7V devices from 5V supply safely.

Convert 12v to 5v

Step down 12V to 5V using the LM317 adjustable voltage regulator. Ideal for powering 5V devices safely with a simple resistor setup.

Convert 12v to 9v

Step down 12V to 9V using BC547 transistor. Simple linear regulator circuit suitable for powering 9V devices safely from a 12V supply.

Dark Sensor Without LDR

Build a dark sensor circuit without using an LDR. Detect darkness with transistor or photodiode-based circuits to automatically turn on night lights or LEDs.

Day Night Sensor Wiring

Automatically turn lights on/off using a BC547 transistor-based day-night sensor. Ideal for LED lamps or night lights without complex ICs.

DC Motor Control Circuit

Control DC motor speed and direction using IRFP250N MOSFET. Simple H-bridge or PWM-based circuit for reliable low to medium power motor applications.

DC Motor Forward Reverse Control

Control a DC motor’s forward, reverse, and stop functions using relays. Simple and cost-effective circuit ideal for small robotics and automation projects.

Forward Reverse Motor Control

Control DC motor direction forward and reverse using DPDT relays. Simple relay-based motor controller ideal for robotics, automation, and small motor projects.

DC Motor Speed Controller

Control DC motor speed efficiently using IRFP450PBF MOSFET. A PWM-based circuit provides smooth speed regulation for small to medium power motors.

DC Motor Speed Controller using FQA60n60

Control DC motor speed efficiently using FQA60N60 MOSFET. A PWM-based controller allows smooth and adjustable speed regulation for low to high-power motors.

12v DC Fan Speed Controller

Control DC motor speed using TIP41 transistor. Simple PWM-based circuit allows smooth speed adjustment for small DC motors in robotics and DIY projects.

DC Voltage Regulator

Regulate DC voltage efficiently using the IRF840 MOSFET. Smooth and stable output with adjustable voltage control, ideal for power supply and electronics projects.

Dc-Dc Boost Feedback

An efficient DC-DC boost converter with feedback ensures a stable and adjustable higher voltage output. Ideal for battery-powered electronics and power supply projects.

Delay LED Light Circuit

Control the LED light with an adjustable delay using a BC547 transistor. Simple RC-based timing circuit for smooth LED ON/OFF transitions in DIY projects.

Convert AC to DC Power Supply

Convert AC mains voltage to stable DC with this DIY power supply circuit. Ideal for hobby electronics, microcontrollers, and small devices requiring a regulated DC output.

Emergency Light auto Cut

Automatically cut off charging and power for the emergency light using the D882 transistor. Simple and reliable circuit for battery protection and LED safety.

Fire Alarm System Project

Design a simple fire alarm system using BC547 transistor. Detect smoke or heat and trigger buzzer or LED for early fire warning in DIY projects.