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Author: Sagar

I am Sagar Saini from a well know city- Kurukshetra (Haryana). I completed my graduation in electronic science and pursuing Masters in electronics. I really Love designing circuits, Schematics, Diagrams and PCB's. Well I am also developing my skills in Coding, Soldering and Studying Micro-controllers, Processors
ESP8266 and GNSS Interfacing
Sensors

ESP8266 and GNSS Interfacing

BySagar March 31, 2023March 31, 2023

In the previous GNSS interfacing tutorial we have seen the location readings in GPRMC and GPGGA format on the serial monitor in Arduino IDE. We are using the same RYS8830 GNSS sensor which has a very small form factor and high gain small antenna on top. This RYS8830 is developed by Reyax technologies, here we…

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Arduino Based Square Pulse Generator (1Mhz)
Arduino

Arduino Based Square Pulse Generator (1Mhz)

BySagar December 26, 2022

There are two type of digital circuits, some need a clock pulse trigger known as synchronous and other are asynchronous (no need of trigger). Asynchronous action is fast but unpredictable that’s why whole the microcontroller world run at a desirable clock. Nowadays CPU working frequency is very high (current Gen Intel i9 13 gen can…

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USB TO UART CONVERTER !! The CP2102
Arduino | Embedded Electronics

USB TO UART CONVERTER !! The CP2102

BySagar December 20, 2022

There are a lot of programmers available which helps to covert the USB data into UART form. Which then allows to flash the complied data into microcontroller’s memory. But some of the programmers are compatible with Arduino and has DTR reset pin. Another big problem is that these programming boards has an old USB ports…

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TDA7498 Class D Amplifier PCB Assembly
Audio Amplifiers

TDA7498 Class D Amplifier PCB Assembly

BySagar December 19, 2022

Today I have another Class D amplifier circuit, this amplifier is based on TDA7498 IC. TDA series is known for its high performance and good sound quality. You can say this IC is the king of Class D amplifiers.TDA7498 comes into two type of SMD packages. One is TDA7498-M which has a 100w mono channel…

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Soft BASS preamplifier using TL072
Audio Amplifiers

Soft BASS preamplifier using TL072

BySagar November 22, 2022

Soft base with high treble settings is the need of every stereo system. And today I have TL072 jfet operational amplifier-based audio preamp. All the controls are running on a single two channel op amp IC. Simple RC filters are used for the bass and treble audio separation further regulated by operational amplifier. This operational…

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6-layer PCB is in Trend – NRFduino
Arduino

6-layer PCB is in Trend – NRFduino

BySagar November 20, 2022November 20, 2022

PCB (printed circuit boards) are really very important to minimize the circuit design area and overall cost. PCB manufacturer quality and capabilities depend on the material and minimum featured sized of tracks width. Some of the manufacturers provide up to 6 layers of PCB. I designed and integrated the Arduino NANO with NRF24L01 trans receiver…

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TDA2030 Amplifier Has Amazing Performance
Audio Amplifiers | Power Electronics

TDA2030 Amplifier Has Amazing Performance

BySagar November 20, 2022

Today I have TDA2030 amplifier project here to share with you guys. This IC is developed by ST microelectronics and TDA series is known for its high-fidelity sound experience. TDA2030 is very old and discontinued by ST but still available due to huge stock. Some other manufacturers also making the same but Original IC has…

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Simplest Stereo Preamplifier Ever
Audio Amplifiers | Simple projects

Simplest Stereo Preamplifier Ever

BySagar November 20, 2022

In previous tutorial I made a TDA2030 stereo based 28w amplifier. which is operated by external power supply. but how to use an amplifier without improper signal strength and frequency. That’s why preamplifiers come into market. Because I did not want more regulators/ wires and power supplies here in this circuit, I am making a…

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The Real Audio Preamplifier- DIY
Audio Amplifiers

The Real Audio Preamplifier- DIY

BySagar November 9, 2022November 9, 2022

I made many amplifiers and tone controlling boards in past. But most of them either work on dual mode power supply or need a lot of external components. Today, I have an idea of single power supply transistor based stereo type preamplifier. This preamplifier circuit is used to control volume, bass and treble of any…

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DIY Vibration sensor using OP-AMP
Sensors | Simple projects

DIY Vibration sensor using OP-AMP

BySagar October 16, 2022October 18, 2022

Recently, I got a vibration sensor from one of my friend, which is highly sensitive to vibrations and I want to convert this into a fully fledge vibration sensor module. The sensor is SW-18010P has two wire interface. This one is also known for waterproof action, shock spring switch. We will use this sensor with…

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