An RP2040 mini-sized BadUSB clone
Size: 19x39mm
This tiny (19x34mm) device is just a common "Rubber Ducky" clone.
Without software this is just an RP2040-on-a-stick ;)
A good starting point for this board is the BadPico Repository by @EvgeniGenchev.
The board in general works identical to a Raspberry Pi Pico and can be programmed as such. However, due to the intended use-case the I/O pins are not available for usage with the exception of those listed below.
| Designator | GPIO | Type | Description |
|---|---|---|---|
| D4 | 25 | LED | Status LED |
| D3 | 24 | LED | User-programmable LED |
| SW1 | 0 | Switch | User-programmable switch. I use it as an 'arming' switch |
| Name | Designator | Footprint | Manufacturer | Man. Part No. |
|---|---|---|---|---|
| 27pF | C15,C16 | C0402 | FH | 0402CG270J500NT |
| 100nF | C1-C9,C12 | C0402 | Yaego | CC0402KRX7R7BB104 |
| 1uF | C10,C11 | C0402 | Samsung | CL05A105KQ5NNNC |
| 10uF | C13,C14 | C0603 | Samsung | CL10A106MP8NNNC |
| Y | Y1 | 5032 | Abracon | ABMM2-12.000MHZ-E2-T |
| 24.7R | R3,R4 | R0402 | FH | RC-02W27R4FT |
| 330R | R5 | R0402 | FOJAN | FRC1206J331 |
| 1k | R7,R9,R10,R11 | R0402 | Walsin | MR04X102 |
| 100k | R8 | R0402 | FH | RS-03K104JT |
| Flash | U1 | WSON-8 | Winbond Elec | W25Q128JVPIQ |
| LDO | U2 | TSOT-23-5 | Maxlinear | SPX3819M5-L-3-3 |
| RP2040 | U3 | QFN-56 | Raspberry Pi | RP2040 |
| FET | Q1 | SOT-24 | Vishay | Si2319CDS |
| Diode | D2 | SOD_123F | Shandong | 1N4002W |
| LEDs | D3,D4 | D0402 | Everlight | 17-21/BHC-XL2M2TY/3T |
| Fuse | F1 | F0805 | LittelFuse | 0805L050WR |
| Bead | FB1 | F0402 | Chillsin | BBSY00100505101Y00 |
| USB | J1 | Custom | XKB Connectivity | U217-041N-4BV81 |
| SWT | SW2,SW3 | Custom | ALPS | SKRKAEE020 |
| SWF | SW1 | Custom | Shou Han | SK12D07VG4 |
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