SATHYAJITH

Developed a Python-based Software-in-the-Loop (SIL) validation framework to reduce machine proving time at TVS Motor Company. The framework emulated PLC behaviour using an OPC UA virtual server built with asyncua, so traceability data capture testing no longer needed a physical PLC or assembly line. It ran configurable test cases, validated business logic, and generated structured JSON reports. A FlowFuse dashboard visualized results in real time. The result: a vendor-independent, repeatable testing framework that cut manual validation effort and improved test coverage across production stations.

Designed a low-cost power quality analyzer that detected voltage sag and swell conditions in real time alongside PQ parameter computation. The system combined LEM voltage and current sensors with op-amp based analog signal conditioning, running on a TI C2000 F28027F microcontroller. Wavelet-based analysis (DWT db4) picked out disturbances, while FFT handled harmonics. Results were displayed on a Python-based dashboard.

Built a web-based resistor color code calculator that converts resistor bands to values and back. Used HTML, CSS, and JavaScript, with a responsive layout and live preview as you type.

Built an analog feedback control system using an LM358 op-amp to regulate the speed of a 12V DC motor. Proportional, integral, and derivative control were realized entirely through discrete analog components. No digital processing involved, just op-amps doing the work of a controller.

Built a simulation-based system to locate underground cable faults using the voltage drop principle. Implemented and tested in Proteus with an ESP32, it estimated fault distance in real time and visualized the result.

Built an electronic Braille input interface on an Arduino Uno that reads 6-dot button inputs and converts them to alphanumeric characters on an LCD. Added Alpha/Numeric mode switching, backspace, and clear functions. Designed and validated the whole circuit in Tinkercad before building it.