Sensor-Based Projects

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.

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.

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.

IR Remote Tester

Test any IR remote using the TSOP34838 sensor. The LED indicator shows signals received, making it ideal for DIY electronics and hobby projects.

LDR Project

Build an LDR-based light sensor circuit using BC547. Detect ambient light levels to control LEDs or relays automatically for DIY electronics projects.

LDR Tester

Test ambient light levels using an LDR with an LED. LED glows or dims according to light intensity, perfect for DIY electronics and hobby projects.

LDR Working Project

Automatic light-sensing project using LDR and BC547. Switch LEDs or relays based on ambient light levels for DIY electronics and hobby projects.

Light Sensitive Automatic On Off Light LDR

Automatically switch lights ON/OFF using the LDR sensor. Detect ambient light levels to control LEDs or small lamps for energy-saving DIY projects.

Magnetic Reed Switch Circuit

Detect magnetic fields using a reed switch and BC547 transistor. Control LEDs or relays automatically for DIY electronics, alarms, and hobby projects.

Mini Project Motion Sensor

Detect motion easily with a simple BC547-based motion sensor circuit. Ideal for hobbyists and students for mini electronics projects and automatic alarms.

Proximity Sensor Circuit

Build a simple proximity sensor circuit using a BC547 transistor to detect nearby objects. Ideal for DIY electronics, hobby projects, and automation experiments.

Reed Switch Magnetic Sensor

Build a magnetic sensor using a reed switch. Detect magnets, doors, or proximity in DIY projects. Easy assembly with BC547 transistor for switching output.

Remote Control Tester using IR Receiver

Build a remote control tester using IR receiver and BC557 transistor. Check remote signals instantly with LED or buzzer output for DIY electronics projects.

simple and stable metal Detector

Build a simple and stable metal detector for hobby electronics. Detect metals easily using a compact, low-voltage, and beginner-friendly circuit with an LED or buzzer output.

Solid State Relay

Build a solid-state relay (SSR) using BT136 TRIAC. Controls AC loads without mechanical contacts, ideal for DIY electronics, automation, and hobby projects.

Temperature Sensor Fan Controller Circuit

Automatically control a 12V/24V fan using a temperature sensor (LM35 / DS18B20 / NTC). Comparator or MCU drives a MOSFET/relay to switch fan based on set temperature threshold.

Touch on-off Switch Circuit

Simple NE555-based touch on-off switch circuit for controlling LEDs and small loads with a single touch, ideal for DIY electronics projects.

Automatic Day Night Light Switch

Build an automatic day-night light switch that turns lights ON at night and OFF during the day. Learn the circuit diagram, components, working principle, assembly steps, and applications for smart lighting.

Automatic Street Lamp LM393

Build an automatic street lamp using the LM393 comparator to turn the lights ON at night and OFF during the day. Learn the circuit diagram, components, working principle, assembly, and applications.

BC547 Instead of NTC

Learn how to use BC547 instead of an NTC thermistor for switching applications. Explore circuits, working principles, components, and alternatives for low-voltage and current sensing.

Proximity Sensor Circuit Adjustable Range

Learn how to build a proximity sensor circuit with an adjustable range using simple components. Step-by-step guide includes circuit diagram, working principle, assembly, and applications for DIY electronics projects.

Diode 1N4007 as Temperature Sensor

Learn how to use a 1N4007 diode as a temperature sensor. Step-by-step guide with circuit diagram, working principle, components, and DIY assembly for electronics projects.

12V Rechargeable Battery at Home

Learn how to make a 12V rechargeable battery at home using lithium or lead-acid cells. Step-by-step wiring, materials, charging, safety tips, and FAQs included.

Sound Sensitive Bulb 12 Volt Circuit

Build a 12V sound-sensitive bulb circuit that turns ON or OFF with claps or sound. Complete DIY guide with components, working principle, circuit diagram, and assembly steps.

Zener Diode as Temperature Sensor

Learn how to use a Zener diode as a temperature sensor for electronic circuits. Step-by-step DIY guide, circuit diagram, working principle, and applications explained.