Kerala student builds “Talk to Write” AI tool that turns voice into handwritten notes

An Electronics Engineering student and his team from Kerala impressed everyone at Ente Keralam Expo 2025 with “Talk to Write” — an AI tool that turns voice into handwritten notes using Raspberry Pi and Arduino.

What is Talk to Write?

The device is a smart solution to help students, professionals, and those with disabilities.

It works like a digital scribe, writing spoken words line by line on A4 paper through a CNC pen plotter. Powered by Python and GRBL, the device brings together voice tech and robotics to make note-taking easier for all.

“Honoured to Represent Our Project at Ente Keralam Expo 2025!” Ajay H shared on LinkedIn. 

“I recently had the amazing opportunity to participate in the Ente Keralam Expo 2025 — the vibrant annual celebration of the Government of Kerala, held in Alappuzha,” he added. 

About their academic project, Talk to Write, he said: “It is an AI-powered voice-to-pen system that converts spoken words into handwritten text using a CNC pen plotter. Built with Raspberry Pi, Arduino (GRBL), and Python, it is especially designed to help people with disabilities, acting as a digital scribe that writes what you say — line by line on A4 paper.”

Ajay H expressed special gratitude to his incredible team - Aparna Hari, Roobak Hari Nair, and Akash G Nair- for making the innovation possible.

“Couldn’t have done it without you all!” he thanked. “Grateful for this recognition and the chance to share our work with a larger audience.”

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