if cant see the emojis you should probably update frfr
It's, well, a keychain in the shape of a floppy disc. It has very awesome amazing functions like:
- Being a keychain
- Being a PCB
- Being a PCB (with NFC :0)
- Being NOT waterproof (unless you or I make a case)
If you'd like to see the process of making this thing I recommend you check out the journal.
Size: 25mm x 25mm
BOM:
| ID | Name | Designator | Quantity | Manufacturer Part | Manufacturer | Price (USD) |
|---|---|---|---|---|---|---|
| 1 | 220nF | C1 | 1 | CL10B224KA8NNNC | SAMSUNG(三星) | 0.006 |
| 2 | 0805G (Green) | LED1 | 1 | KT-0805G | KENTO | 0.011 |
| 3 | 47Ω | R1 | 1 | 0603WAF470JT5E | UNI-ROYAL(厚声) | 0.001 |
| 4 | EVPAA602W | SW1 | 1 | EVPAA602W | PANASONIC(松下) | 0.214 |
| 5 | NT3H2111W0FHKH | U1 | 1 | NT3H2111W0FHKH | NXP(恩智浦) | 0.695 |
This is just for the PCB part, if you want to actually also make the keychain part, you'll need some keychain split rings, a keyring, and (if necessary, a normal pair of pliers should do fine) some keychain pliers.
(I also sincerely apologize for the low quality images, but I'll throw my laptop off of the second floor if I have to go through EasyEDA to KiCad conversion.)
The schematic of the PCB
Front and backside of the PCB.