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A 13-year-old has made a cheap machine that helps blind people read. The machine uses Braille - small bumps that people touch to read the letters. Machines that make these small bumps into words, sentences and paragraphs are very expensive. They usually cost at least $2,000. The teenager, Shubham Banerjee, made a new Braille writer from a Lego robot kit. It costs just $350. Banerjee has called his new device the Braigo – a combination of the words Braille and Lego. It works by changing electronic text into Braille and then printing it using a computer or mobile device.

Banerjee designed his Braigo last year as a science project. Silicon Valley is now interested in him. The technology giant Intel invested in his machine last year. They did not say how much money they gave him. Banerjee also got $35,000 from his father. His father is a computer engineer at Intel. He spoke about giving money to his son, saying: "We as parents started to get involved more, thinking that he's on to something and this innovation process has to continue." Banerjee said: "My end goal would probably be having most of the blind people...using my Braille printer."