Video: Braigo braille printer

In the project for the local science fair, Banerjee sought answers to the Braille printer problem: the 12-year-old said that the price of $ 2,000 or more of braille printers was too expensive.

>>>12-year-old students build Braille printers from Lego

Banerjee's solution has a much lower cost: the boy looking to buy a Lego Mindstorms EV3 costs only 350 USD (about 7.5 million VND) and a few dollars of spare parts at Home Depot store. After a while, Banerjee successfully created this blind Braille printer called "Braigo".