This board hosts a RaspberryPi Pico (or similar) microcontroller unit. It provides break out connectors for the GPIOs as well as signal shifting for WS2812 style LEDs and LED drivers for four single LEDs.
- VBUS and VSYS are bridged as recommended in Pico Datasheet Capter 3.5. If you want to add external power, you can cut JP1 to un-bridge.
- For powering active switches, like the Shinsanwa, 5V power is available on J10.
- If you don't need level shifting the for slider LEDs, you can omit U2, C1 and C2 and bridge JP2 instead.
| Reference | Description | Digikey Part | Notes |
|---|---|---|---|
| U1 | Raspberry Pi Pico | 2648-SC0915CT-ND | Other variants like the Pico W or Pico 2 should also work. Debug pins might not line up. |
| U2 | 74LVC1T45 Dual supply translating transceiver | 1727-4560-1-ND | Can be omitted if you don't need level shifting |
| Q1, Q2, Q3, Q4 | BC847 NPN Transistor | BC847BLT3GOSCT-ND | |
| C1, C2 | 0.1µF SMD Ceramic Capacitor | 1276-1003-1-ND | Can be omitted if you don't need level shifting |
| R1,R2,R3,R4,R5,R6,R7,R8 | 4.7kΩ SMD Resistor | 2019-RK73H2ATTD4701FCT-ND | |
| J1,J4,J5 | SWH201 Vertical 5 Pin Header 2mm | S9450-ND | S9417-ND plus S9475CT-ND is the counterpart |
| J2,J3,J6,J7,J8,J9,10 | SWH201 Vertical 4 Pin Header 2mm | S9457-ND | S9406-ND plus S9475CT-ND is the counterpart |
| SW1 | Tactile Switch | 2223-TS02-66-60-BK-100-LCR-D-ND | optional |