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ESPHome NFC Card Reader
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A ESPHome NFC scanner using a card slot.
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Model information
- Source
- Printables
- Category
- Other Gadgets
- License
- Creative Commons — Attribution — Noncommercial
After seeing ESPHome Cartridge Player, I thought I should finally get around to my own project (which has been languishing for 10 years on the to-do list)…
My design revolves around having a giant stack of credit-card sized NFC cards, and the TurboGrafx-16 slot form factor.
The slot is pretty much cosmetic, as cards will scan when left on-top of the device, but it's still fun. About half of the card is still visible when slotted, thus allowing for printed adhesive labels to be visible.
Instructions
- Print all four parts: case-bottom, case-top, tray, clamp.
- All STLs are pre-aligned for printing.
- (Optionally) Insert the clamp into the slot on the case-top.
- This provides a little bit of friction to hold the NFC card.
- Insert the ESP32 PCB into the rear slot of case-bottom and hot-glue it in-place.
- (Optionally) hot-glue a bunch of weights into case-bottom, for a bit of heft.
- Attach the PN532 PCB to case-bottom.
- Insert the tray.
- Slot in case-top, making sure no cables are in the way.
- Apply pressure to case-top and case-bottom, and screw them together.
- (Optionally) apply rubber feet.
Hardware
- ESP32-C3 SuperMini
- Elechouse PN532 V3 NFC reader
- 4qty M3 x 10-14mm countersunk head (to assemble case)
- 2qty M3 x 10mm (to secure reader PCB)
- credit-card sized NFC cards
- hot-glue gun