After the development of the handwired Adalyn case, it was clear this great combination needed a formalized pcb. This is that PCB. Designed by tominabox1, the pcb features an ATmega32u4a, USB-C, and ESD protection. The pcb is supported in QMK and VIAL.
The bill of materials is listed below, with LCSC parts where possible. Total unique part count: 14. Total parts: 37.
| Ref | Qnty | Value | Part | Footprint |
|---|---|---|---|---|
| C1, C2, C4, C101 | 4 | 100nF | C187860 | 0603 |
| C5 | 1 | 10uF | C97885 | 0603 |
| C6 | 1 | 1uF | C302042 | 0603 |
| D101, D102, D103, D104, D105, D106, D107, D108, D109, D110, D111, D112, D113, D114, D115, D116, D117, D118 | 18 | BAV70 | C181110 | SOT-23 |
| F101 | 1 | 700mA | C182438 | 0603 |
| L101 | 1 | 600R@100MHz | C139183 | 0603 |
| R2, R3 | 2 | 22 | C96423 | 0603 |
| R4, R5 | 2 | 10k | C73809 | 0603 |
| R101, R102 | 2 | 5.1k | C415096 | 0603 |
| SW1 | 1 | SW_Push | C589220 | 4.9x4.9 |
| U101 | 1 | ATmega32U4-A | C44854 | TQFP-44_10x10mm_P0.8mm |
| U102 | 1 | PRTR5V0U2X | C2827688 | SOT-143 |
| USB101 | 1 | HRO-TYPE-C-31-M-12 | C165948 | HRO-TYPE-C-31-M-12 |
| Y1 | 1 | 16MHz | C341521 | Crystal:Resonator_SMD_Murata_CSTxExxV-3Pin_3.0x1.1mm_HandSoldering |