Electric Dhamaka

Electric Dhamaka Electronic DIY Project
(4)

Arduino ko kapda pahna Diya Hai!
21/05/2026

Arduino ko kapda pahna Diya Hai!

20/05/2026

Nod MCU 8266
Compass N S E W

19/05/2026

In this video, I built a simple and powerful Clap ON/OFF Switch Circuit using a microphone sound sensor, BC337 transistors, PC817 optocoupler, NE555 timer IC, and relay driver circuit.
With just a single clap, the relay turns ON, and with another clap, it turns OFF. You can use this project to control a 220V bulb, fan, or other home appliances.
This project works without Arduino or microcontroller and is great for beginners and electronics hobbyists.
🔧 Components Used:
NE555 Timer IC
BC337 Transistor
PC817 Optocoupler
Electret Microphone
Relay
Resistors & Capacitors
9V Supply
⚡ Features:
Single clap ON/OFF control
Relay output for AC appliances
Simple and low-cost circuit
Optocoupler isolation using PC817
DIY electronics project
📌 Warning: This project uses high voltage AC with relay output. Be careful while handling 220V connections.

16/05/2026

🔌 DIY 12V to 220V Inverter using 555 Timer & MOSFET ⚡

In this video, I built a simple and powerful inverter circuit using a 555 timer IC and IRF540 MOSFETs. This circuit converts 12V DC into AC voltage, which can be used to power small devices.

🛠️ Components used:
• 555 Timer IC
• IRF540 MOSFETs
• BC549 Transistor
• Resistors & Capacitors
• Step-up Transformer (12V to 220V)
• 12V Battery

💡 How it works:
The 555 timer generates square wave pulses, which are used to switch the MOSFETs alternately. The transistor stage helps drive the MOSFET gates properly, ensuring efficient switching. This creates an alternating current in the transformer, stepping it up to high voltage AC.

⚠️ Note:
This is a basic inverter circuit and produces a square wave output, not pure sine wave. Be careful while handling high voltage.

If you found this useful, don’t forget to like, share, and subscribe 👍

14/05/2026

This is a simple NPN transistor-based sound sensor circuit using two transistors, a microphone, and a few resistors. The microphone detects sound signals and amplifies them through the transistor stages. When a clap or sound is detected, the output signal can be used to trigger other circuits. In my project, I connected this sound sensor to a NE555 IC latching circuit, so the output can switch and hold the load ON or OFF after detecting sound. This circuit is easy to build and useful for clap switches, sound-activated projects, and automation experiments.

13/05/2026

Weekend build success! 🔥 Built 2 circuits from scratch and both are working perfectly ✅

Circuit 1: CD4011 Toggle Switch
One press = relay ON, next press = OFF. Controls any 12V load with just a push button. No microcontroller needed.

Circuit 2: NE555 Timer Switch
Touch the switch and LED stays ON for a few seconds, then auto OFF. Classic 555 monostable magic.

From schematic to real hardware. Love electronics!

13/05/2026

This DIY electronics project is a high sensitivity adjustable temperature controller circuit made using BC547 transistors, a 100k NTC thermistor, variable resistor, PC817 optocoupler, relay driver transistor, and relay. Three BC547 transistors are connected in a Darlington amplifier style setup to create very high sensitivity, allowing the circuit to detect temperature changes quickly and accurately. The 100k NTC thermistor senses heat, while the potentiometer is used to adjust the desired temperature trigger point.

When the temperature reaches the preset level, the BC547 transistor stage activates the PC817 optocoupler, which then drives the relay through the transistor switch stage. The relay can automatically turn connected devices ON or OFF depending on the set temperature. This makes the circuit very useful for controlling a 220V exhaust fan, cooling fan, heater, charger auto cut-off, soldering iron standby auto power cut, and other home automation uses.

The circuit works from a low voltage 3.7V power supply, making it battery friendly and energy efficient. It is a simple, low-cost, and practical homemade electronics project for beginners and hobbyists interested in transistor circuits, temperature sensing, relay control, and automatic switching systems.

12/05/2026

⚡ Thunderstorm Detector Circuit | Lightning Sensor DIY ⚡

In this video, I built a simple thunderstorm (lightning) detector circuit using BC547 and BC557 transistors. This circuit can detect the electromagnetic pulses produced during lightning strikes and convert them into visible flashes using a small lamp.

🌩️ How it works:
Lightning generates a wide range of electromagnetic frequencies. The antenna and LC tuning network in this circuit pick up these signals (around ~300 kHz range). The signal is then amplified using transistor stages, detected through a diode, and finally drives a lamp that flashes whenever lightning is detected.

🔧 Main Components Used:

- BC547 transistor
- BC557 transistor
- 1N914 diode
- Inductors (10 mH, 330 µH)
- Capacitors (680 pF, 0.01 µF, 100 µF)
- 2.5V lamp
- 3V power supply

💡 Features:

- Detects distant lightning activity
- Works without microcontroller
- Pure analog circuit design
- Great project for electronics beginners & hobbyists

⚠️ Note:
This circuit may also respond to electrical noise from nearby electronic devices, so proper placement and shielding are important for accurate detection.

📌 If you enjoyed this project, don’t forget to Like 👍, Share 🔁, and Subscribe 🔔 for more electronics experiments!

Thunderstorm lightning detector circuit diagram
12/05/2026

Thunderstorm lightning detector circuit diagram

11/05/2026

Working on this project.

06/05/2026

Thunderstorm detector circuit.
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