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DIY Projects

5V 3A Linear Power Supply Circuit

Last updated on 3 July 2026 by Admin-Lavi Leave a Comment

This 5V 3A Linear Power Supply Circuit is very simple for one to give it a try, as it uses only LM323K IC and few more parts which are easily available; also, it gives 5V fixed output and can handle load up to 3A. Circuit Working: Parts List: Components Values Quantity Capacitors Electrolytic 4700uF 25V, […]

Filed Under: DIY Projects, Power Supply Circuits

Simple Solar USB Charging Circuit

Last updated on 2 July 2026 by Admin-Lavi Leave a Comment

We can charge phone or gadgets from sun with no wire and with no electricity bill; but this is possible only through solar power! therefore, this Simple Solar USB Charging Circuit help store sun energy in battery. Battery give power anytime and only few parts needed: solar panel, diode, battery, USB module and is small […]

Filed Under: DIY Projects, Mini Projects, Power Supply Circuits, Renewable energy, Solar Circuits

Arduino Battery Charger Circuit

Last updated on 2 July 2026 by Admin-Lavi Leave a Comment

This article show how to make a simple Arduino Battery Charger Circuit. Here, charger stop and start charging using MOSFET and then Arduino read battery temperature with TMP36 sensor and decide safe charging. Additionally, circuit is simple and work with basic components. Arduino Code: Code Explanation: Circuit Working: Parts List: Components Values Qty Resistors 10k […]

Filed Under: Arduino Projects, Battery Charger Circuits, DIY Projects, Power Supply Circuits

Arduino Sine Wave Output Circuit with RC Filter

Last updated on 2 July 2026 by Admin-Lavi Leave a Comment

This project show how to make simple Arduino sine wave circuit with RC filter; as Arduino cannot give real analog output, but it only gives PWM signal. So we use low pass RC filter to change PWM into smooth sine wave; also two potentiometer control amplitude and frequency, therefore, this circuit is very easy and […]

Filed Under: Arduino Projects, DIY Projects, Mini Projects

Natural Bird Sound Generator Circuit using Transistors

Last updated on 2 July 2026 by Admin-Lavi Leave a Comment

This is a small Natural Bird Sound Generator Circuit using Transistors, as this circuit uses two BC547 transistors, some resistors, capacitor and a speaker. In addition, the circuit is simple for beginners and works on low voltage like 3V to 9V and is also good for toys, hobby projects, alarms and for school projects. Circuit […]

Filed Under: Audio Circuits, DIY Projects, Hobby Circuits, Transistor Circuits

Arduino Chirping Bird Sound Circuit

Last updated on 2 July 2026 by Admin-Lavi Leave a Comment

This small Arduino project make cute bird sound like real chirping and also which make our room feel like forest; with only one button press and tiny speaker sing like little bird, sound is clear and fun, anyone can make in few minutes. Therefore, this Arduino Chirping Bird Sound Circuit has a very low cost, […]

Filed Under: Arduino Projects, Audio Circuits, DIY Projects, Mini Projects

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