Noel Mathew Varghese
Electronics and embedded systems engineer in Kerala. I spend my time on microcontrollers, sensor networks, PCBs and small servers — the kind of work that ends up on a bench, in a house, or out in a field.
Every one of these started because something at home or on the farm needed fixing, and buying the fix felt like giving up.
A privacy-first home automation system built on Home Assistant running on a Raspberry Pi, with ESP32 and ESP8266 nodes around the house. Nothing it does depends on somebody else's cloud.
Built with a student team for the SAE INDIA eBAJA competition. My side of it was the electrical end: battery management, custom PCBs, and keeping the wiring alive over rough ground.
Hand-built storage and media server with a 2 Gbps uplink. It holds the family archive, streams through Jellyfin, and records the cameras — all of it mine to repair.
A sensor at the tank, a LoRa link across the farm, and a display in the house showing the level in real time. Built for a place where mobile data is a rumour, so it never asks for the internet.
The formal half of the education. The other half happened at a soldering iron.
APJ Abdul Kalam Technological University
Science stream
Where the first circuit got built, and the first one got fried.
Tools I reach for without having to look things up.
Also: I hold an amateur radio licence from the WPC Wing, Government of India. Most of the antenna and RF practice above comes from there.
A signal generator and an oscilloscope — the two things always switched on at my desk. Pick a shape, turn the knobs, and switch the sound on if you want to hear what you're looking at.
No recordings involved. The line on screen and the tone in your speakers come out of the same few lines of maths.
Work, a project idea, or a question about any of the above — this reaches me directly.