Keshav Ashok 
Overview In the realm of robotics, automation, and electronic projects, controlling DC motors efficiently and effectively is a fundamental requirement. The combination of an L298N motor driver and an ESP32 microcontroller presents a powerful solution … Read more
Introduction The HC-SR04 Ultrasonic sensor is a user-friendly, cost-effective sensor ideal for hobby electronics projects and can also be utilized in home automation applications. This sensor is essentially a sound sensor that uses high-frequency sound … Read more
Introduction Unlike a servo motor, which comes with a dedicated control board within its housing, a stepper motor or a simple DC motor does not come with a control board that can control the speed … Read more
Introduction To step down an AC voltage, we use a transformer; however, to step down a DC voltage source efficiently, we use a step-down buck converter for the process. The LM2596 is a switching regulator … Read more
Overview Smoke detectors are crucial devices that play a pivotal role in ensuring the safety of homes and workplaces. They serve as early warning systems, detecting the presence of smoke or potentially harmful gases in … Read more
Overview In today’s era of technology, the Internet of Things (IoT) has opened the doors to innovative solutions in various fields. One such application is an object counter that utilizes Infrared (IR) sensors in conjunction … Read more
Overview In today’s digital age, the integration of various technologies has led to innovative applications across different domains. One such integration is the combination of YouTube’s vast data resources with the capabilities of microcontrollers like … Read more
Overview This compact 13V/2A power supply, ideal for ham radio rigs and other VHF/UHF portable PMRs, utilizes the STR2012/13 voltage regulator IC from Sanken Electric Co. Many power supplies for handheld amateur radio rigs often … Read more
Overview We have previously released designs utilizing a transistor junction in Zener breakdown mode as a noise source. Those familiar with reverse-biased transistors are aware that the noise voltage amplitude produced this way is highly … Read more
Overview The Analog Devices ADP3610 is a voltage doubler utilizing a switched-capacitor converter based on the push-pull principle. The output switching frequency is approximately 550 kHz. The push-pull concept involves two charge pumps operating in … Read more
Overview Imagine you’re designing a compact electronic device that needs to convert a higher input voltage to a stable +5V output, but space and efficiency are critical. Traditional linear voltage regulators won’t work due to … Read more
Overview In the world of IoT (Internet of Things), the ability to gather data from the environment and display it in a user-friendly manner is paramount. One of the key components in such a setup … Read more
More than several years have passed since this website first published the 3 – 5W Class-A Audio Amplifier, and its success has only grown over time. Recently, some minor adjustments were made to enhance its … Read more
Overview The remarkable simplicity of the 7W Class-A Audio Amplifier circuit might naturally suggest that it could be easily adapted into a Headphone Amplifier. Consequently, this adaptation was promptly executed, yielding a Headphone Amplifier capable … Read more
The objective of this project was to create a compact, portable mixer powered by a 9V PP3 battery while maintaining high-quality performance. This mixer consists of three primary modules, which can be customized in terms … Read more
Overview By using a common 78L05 along with an integrated audio amplifier like the TDA2030, you can easily create a customizable voltage regulator that performs excellently. This regulator allows you to adjust the output voltage … Read more