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🛠 Secret Messages with OpticSpy + Tomu

Tech Highlight

Share hidden messages with invisibly blinking lights, using the Tomu mini USB device and an OpticSpy decoder! One of the cool things Alex learned at Teardown 2018.

// Tutorials:
https://www.hackster.io/glowascii/get-started-with-opticspy-arduino-088272
https://www.hackster.io/glowascii/share-hidden-messages-with-opticspy-tomu-052ccb