Prismo

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An open-source NFC access controller you can build for about $10 in parts. Tap a card to unlock a door or a machine.

b.sverdlyuk

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Step 3.5

Solder three BC337 transistors
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Solder PN532 module
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Step 4

Solder the male pins to the PN532 module
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Assemble
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Step 5.1

Add two heat inserts into 3d printed housing and add the diffuser; use glue for permanent attachment.
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Step 5.2

Attach the PN532 using two PCB standoffs
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Step 5.3

Add the main PCB and fix it with two M3 bolts

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