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This is a 2x2 keyboard I made to get experience using KiCAD.
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In the future, I will be developing the drivers through QMK.
Clone the project into your device and open the .kicad files
Here are the parts I used for this build.
| Index | DigiKey Part # | Manufacturer Part Number | Description | Quantity | Unit Price | Extended Price |
|---|---|---|---|---|---|---|
| 1 | 478-KGM21NR71H104MTCT-ND | KGM21NR71H104MT | CAP CER 0.1UF 50V X7R 0805 | 3 | $0.16 | $0.48 |
| 2 | 1276-6455-1-ND | CL21A106KOQNNNG | CAP CER 10UF 16V X5R 0805 | 1 | $0.10 | $0.10 |
| 3 | 1276-1066-1-ND | CL21B105KAFNNNE | CAP CER 1UF 25V X7R 0805 | 1 | $0.10 | $0.10 |
| 4 | 1276-2605-1-ND | CL21C220JB61PNC | CAP CER 22PF 50V C0G/NP0 0805 | 2 | $0.15 | $0.30 |
| 5 | 1N4148WTPMSCT-ND | 1N4148W-TP | DIODE GEN PURP 100V 150MA SOD123 | 4 | $0.12 | $0.48 |
| 6 | 507-1803-1-ND | 0ZCJ0050AF2E | PTC RESET FUSE 24V 500MA 1206 |
| 1 |
| $0.24 |
| $0.24 |
| 7 | P10KDACT-ND | ERA-6AEB103V | RES SMD 10K OHM 0.1% 1/8W 0805 | 2 | $0.32 | $0.64 |
| 8 | P22ACT-ND | ERJ-6GEYJ220V | RES SMD 22 OHM 5% 1/8W 0805 | 2 | $0.10 | $0.20 |
| 9 | CKN10361CT-ND | RS-187R05A2-DS MT RT | SWITCH TACTILE SPST-NO 0.05A 12V | 1 | $0.68 | $0.68 |
| 10 | ATMEGA32U4-AU-ND | ATMEGA32U4-AU | IC MCU 8BIT 32KB FLASH 44TQFP | 1 | $5.29 | $5.29 |
| 11 | WM3895CT-ND | 0548190589 | CONN RCPT MINI USB B 5POS SMD RA | 1 | $1.55 | $1.55 |
| 12 | 478-CX3225SB16000D0GZJC1CT-ND | CX3225SB16000D0GZJC1 | CRYSTAL 16.0000MHZ 8PF SMD | 1 | $0.62 | $0.62 |
| Subtotal |
| $10.68 |
Make sure you get your preferred key switches and keycaps for this build.
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