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No string attaches this tin can telephone

Arduino TeamJune 9th, 2020

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Geoff (AKA Facio Ergo Sum) has created a new take on the classic “tin can telephone,” using an Arduino and nRF24L01 transceiver to pass audio signals instead of a physical string. 

The build and testing process are outlined in the video below, including poking holes for an antenna and talk button, as well as hot gluing everything in place.

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More specifics can be found in Geoff’s project write-up, and along with the RF unit, it uses an Uno to run a transmission program. Batteries, a speaker, amp, and microphone are also implemented, enabling a pair of these cans to communicate from what appears to be well over 100 meters away.

Source: Arduino Blog