Engineer Arvind Sanjeev turned a normal Brother typewriter into a ChatGPT-powered machine, called Ghostwriter, that can basically reads what you type and have AI respond. How so? An Arduino board reads the queries and then sends them to ChatGPT via a Raspberry Pi.
The hardest part of this project, or at least from a technical perspective, was decoding the keys from the typewriter. This required Sanjeev to build a keyboard matrix consisting of eight scan and eight signal lines. He then had to press each key, read the signal-scan lines they triggered, and then properly map them before coding a driver that ran on an Arduino. A Raspberry Pi eventually became the interface that communicated with the OpenAI API.
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The Ghostwriter is a poetic intervention that allows us to take a moment to breathe and reflect on this new creative relationship we are forming with machines. It tries to alleviate anxiousness around AI by inviting people to co-create with it in a safe space,” said Sanjeev.
