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sbunger
A custom designed split keyboard! Has sixty keys and maxes out the XIAO nrf52840's GPIO. It is wireless and has a battery on each side.
| Reference | Value | Description |
|---|---|---|
| Q1-Q5 | CJ1012 | |
| U1 | HX6538 | |
| U2 | CH343P | |
| U3 | WR0331-18FF4R | |
| U4,U6 | SY80004DQD | |
| U5 | W25Q128JWSIQ | |
| BOOT1,RST1 | SW_Push | |
| C1,C2,C17-C19 | 1uF | |
| C3 | 10nF | |
| C4,C6,C7,C9,C10,C28,C34 | 4.7uF |
| C5,C8,C13,C20-C27,C29-C32,C35,C36,C39 | 100nF |
|---|
| C11,C37 | 10uF |
|---|
| C14,C15 | 12pF |
|---|
| C16 | 220nF |
|---|
| D1-D4 | B5819WS |
|---|
| D5-D8,R9,R12,R17,R18,R25,R27,R28 | DNP |
|---|
| J1 | USB_C_Receptacle_USB2.0 |
|---|
| J2 | Conn_01x15_MountingPin |
|---|
| J3 | Conn_01x04_MountingPin |
|---|
| J5 | ST-TF-MR267 |
|---|
| L1 | VLS201610HBX-4R7M-1 |
|---|
| L2,L3 | 470nH |
|---|
| LED1 | Yellow |
|---|
| LED2 | Green |
|---|
| M1 | XIAO Connector/DNP |
|---|
| MIC1 | MSM261D3526H1CPM |
|---|
| R1,R4,R13-R15,R19-R22,R40 | 2.2k |
|---|
| R2,R3,R36 | 5.1k |
|---|
| R5,R7,R23,R24 | 10k |
|---|
| R6,R16,R32,R33 | 100K |
|---|
| R8,R31,R38 | 10K |
|---|
| R10,R11,R37 | 100k |
|---|
| R26,R34 | 22K |
|---|
| R29,R30,R39 | 0R |
|---|
| R35 | 510k |
|---|
| TP1-TP3 | Test Point |
|---|
| X1 | 24MHz |
|---|