Arduino micro with RFID unlock your computer. Set one or many RFID tag, and unlock your computer with your personal password.
by Giovanni Gentile
My first project running on a lithium ion battery is here: an IOT device that not only detects if there is water but sends data to the cloud
by Science 3D
This device allows me to detect if the spool ran out of filament or if the print head is clogged !!
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