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…
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…
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…
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…
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…
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…
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…
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…
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…
I made many projects regarding Audio amplifiers and preamplifiers but this tutorial is for the visual music experience. I am going to make a music reactive neopixel based LED strip. The LEDs will glow according to the change in beat and the color is changed automatically. This type of multi color RGB pattern gives a…