T.K. Hareendran is an Internationally certified Professional Freelance Technical Author and Circuit Designer with more than 25 years of experience in the domain. Now he is actively engaged in the expansion of «TechNode», an advanced, independent electronics R&D lab founded & promoted by him.
T.K. Hareendran
T.K. Hareendran
Areas of interest of the author: Automation Supply Analogue Design Oscillators Tools and Technologies Microcontrollers Usage Measurement Robots Power Security Light Solar
Publications on RadioLocman by the author T.K. Hareendran:
- How hot swap circuits and controllers workMost mission-critical systems need to be designed for near-zero downtime throughout their useful...Jun 3, 2025
- Ultrasonic mist maker (DIY)I needed a simple mist maker/humidifier for a project that I was working on. I found lots of...Dec 24, 2024
- Handheld electric PCB drill speed controllerThis handheld electric PCB drill speed controller is cheap, easy to build, and only uses a few...Sep 28, 2023
- Portable Power Inverter CircuitRecently, my neighbor expressed a deep interest in building a low-power inverter from scratch. This...Jul 19, 2021
- Use Inexpensive Components To Create An Infrared Close-Object Alert CircuitMany robotic applications require a sensor to detect close or very close obstacles. Typically,...Dec 10, 2018
- Smart Power Supply for Microcontroller ProjectsA good, reliable and easy to use dc power supply is probably the most important thing for every...Feb 19, 2017
- Low-Cost Impact Sensor Uses Piezoelectric DeviceAlthough piezoelectric elements have been used for shock and vibration detection for some time,...Feb 2, 2014
- Outdoor Garden Solar LightsThis Outdoor LED Solar Garden Lights project is a hobby circuit of an automatic garden light using...Oct 12, 2010
