Beginner Electronics Projects

2 Switch with Battery Wiring

Learn 2 switch with battery wiring in series and parallel modes. Control loads safely using simple connections for lights, motors, or DC circuits.

Power Tesla Coil

Build a transistor-based Tesla coil using a simple transistor oscillator circuit to generate high-voltage sparks for educational and DIY electronics projects.

Transistor led blinking circuit

Build a transistor-based LED blinking circuit using a few resistors and capacitors to make LEDs blink automatically, ideal for beginners and DIY projects.

Transistor LED Flasher Circuit

Build a transistor-based LED flasher circuit that makes LEDs blink automatically using an RC network, ideal for beginners and small DIY electronics projects.

USB Voltage Protector Circuit

Protect your USB devices with a simple IRFZ44N MOSFET-based voltage protector circuit that prevents overvoltage, short-circuits, and device damage effectively.

Use Relay As a Switch

Learn how to use a relay as a switch to control high-voltage or high-current devices safely using low-voltage signals in DIY and electronics projects.

Touch on-off Switch

7N80 touch on-off switch circuit toggles LEDs or relays with a fingertip, ideal for DIY electronics and home automation projects.

Touch Sensor to Light Control

Control LEDs or small lights with a fingertip using BC547 transistor touch sensor circuit, ideal for DIY electronics and home automation projects.

Touch Switch Circuit

Control LEDs or small devices with a fingertip using a 2N2222A transistor touch switch circuit, ideal for DIY electronics and home automation projects.

Transformerless Power Supply

Compact transformerless power supply circuit provides a low-current DC output for small electronics using capacitive or resistive voltage drop methods.

Transformer Using LED Tester

Test transformers quickly and safely using an LED tester circuit to check output voltage and continuity, ideal for DIY electronics and troubleshooting.

Transformerless 12v power supply

Compact transformerless 12V DC power supply provides low-current output for small electronics using a capacitor dropper or resistive method.

Transformerless Isolation Power Supply 12v Fix

Compact transformerless 12V fixed DC supply with isolation provides low-current power for small electronics safely using capacitor or resistive dropper techniques.

Transformerless LED Tester Circuit

Test LEDs safely without a transformer using a compact transformerless LED tester circuit, ideal for hobbyists and electronics enthusiasts for quick checks.

vu-meter for BC547

Build a simple audio VU meter using BC547 transistors to display audio signal levels with LED indicators, ideal for DIY music and electronics projects.

water Level Indicator

Build a simple water level indicator circuit to monitor tank levels with an LED display, preventing overflow and low-level issues for home and industrial applications.

Without IC Chaser LED Relay Based Project

Build a relay-based LED chaser project without using ICs. LEDs sequentially blink using relays, providing a simple DIY electronics display for beginners and hobbyists.

Zener Diode Tester

Build a simple Zener diode tester to check Zener voltage and polarity, ensuring proper operation for DIY electronics and hobby projects.

fire alarm system wiring diagram

Learn how to wire a fire alarm system including detectors, control panel, sirens, and manual call points for reliable safety and early fire detection.

Fire Alarm System Conventional Wiring

Learn how to wire a conventional fire alarm system with detectors, manual call points, a control panel, and sirens for reliable home or office fire protection.

simple Fire Alarm System Wiring

Learn how to wire a simple fire alarm system with smoke detectors, a manual call point, a control panel, and an alarm siren for basic home or office fire protection.

1.5V 220 Volt Inverter Mobile Phone Charger

Learn how to build a 1v5 220 Volt inverter using an old mobile phone charger. Step-by-step guide, circuit diagram, safety tips, and applications for DIY electronics projects.

3 Step LED Dimmer Circuit

Learn how to make a 3-step LED dimmer circuit to adjust LED brightness in three levels. Step-by-step guide, circuit diagram, components list, and safety tips included.

3.7V Battery Charger Circuit 1s-2s TL431 auto off

Build a 3.7V battery charger circuit 1S – 2S using TL431 for high-precision auto cut-off. Step-by-step guide, schematic, components, working principle, and safety tips included.

3.7V Lithium Battery Charge Indicator Circuit

Build a 3v7 lithium battery charge low & full indicator circuit to monitor battery status with LED indicators. Complete guide with circuit diagram, components, working principle, and troubleshooting tips.

3.7V volt battery level indicator diagram

Build a 3.7V battery level indicator circuit to monitor your lithium battery with LED indicators. Step-by-step guide, circuit diagram, components, working principle, and troubleshooting tips.