Thingiverse
Miniature Bat-Symbol
by IdeaZero
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A cool and simple table top bat-signal which lights up and projects a bat symbol on the wall/surface when there is an incoming mobile call. .
The device is powered by 5V with a USB-C port. Device is kept at a vicinity of 150-200mm from the mobile phone to receive the signal.
Circuit works for 2G only for now, will upgrade to 3G/4G to later versions.
https://hackaday.io/project/185063-miniature-bat-signal
Credits: https://www.myminifactory.com/object/3d-print-echo-dot-bat-signal-86104
The device is powered by 5V with a USB-C port. Device is kept at a vicinity of 150-200mm from the mobile phone to receive the signal.
Circuit works for 2G only for now, will upgrade to 3G/4G to later versions.
https://hackaday.io/project/185063-miniature-bat-signal
Credits: https://www.myminifactory.com/object/3d-print-echo-dot-bat-signal-86104
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