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Building a Fun and Smart Home with a DIY Smart Doorbell

  Title: Building a Fun and Smart Home with a DIY Smart Doorbell Introduction: In the exciting world of electronics, there's nothing quite as thrilling as creating your very own smart home gadgets. Today, we'll embark on a journey to build a Smart Doorbell using simple and easily accessible equipment like the Arduino Uno, an IR proximity sensor, and a buzzer. This DIY project is not only a fantastic introduction to electronics but also a step towards transforming your home into a tech-savvy haven. So, gear up, young inventors, as we venture into the world of smart homes! Materials You'll Need: 1. Arduino Uno: The brain of our smart doorbell, capable of processing information and controlling the connected devices. 2. IR Proximity Sensor: A nifty gadget that detects the presence of objects in its vicinity. 3. Buzzer: This component will be the voice of our smart doorbell, alerting you when someone approaches. Step 1: Setting Up the Arduino Uno: Begin by connecting your Arduin...
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Diy project- inverter using 555timer



Today we are going to make a inverter using a 555timer.like I said earlier on principle of operation of an inverter (my previous post) we need an oscillating circuit and we are going to use an astable multivibrator (A astable multivibrator is an oscillating circuit that produce rectangular wave without the aid of an external triggering) such as a 555timer
   
Here below is the electronic components needed for this circuitry
1.555timer
2.BC547 npn transistor
3.15k resistor (4)
4.100k resistor
5.2N6292 transistor 
6.12v battery
7.12-0-12 transformer
8.a breadboard or veroboard  or you can create a PCB (any of your choice) and a heat sink for the 2N6292 transistor.
OK here is the circuit diagram

Then you start the connection that all for now.



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