Megadoor

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Overview

"I don't even know how this happened." - ctag

We're making yet another door auth system. This one will use microcontrollers and NFC.

Hardware

ATmega DIP Pin Arduino Pin Function/Connection
15 D9 Door Unlock Transistor
28 A5 NFC -> SCL
27 A4 NFC -> SDA
12 D6 NFC -> IRQ
11 D5 NFC -> RST

Software

Oh boy.

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