Chu Pico Main
About the Chu Pico Main PCB
Chu Pico Main is an open source PCB design by whowechina, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 294 × 100 mm, with 109 components from 15 distinct parts.
Other key parts include the ChuAcrylic, PiPico_No_SWD, PCA9548APW and MPR121QR2_BOARD. By type, the board carries 36 diodes, 32 relays, 12 resistors, 8 capacitors, 6 ICs and 5 crystals.
From the project
Pico controller for Chunithm-type rhythm game
Features: It's small, made for 15-17 inch screen. Air towers are replaced with built-in ToF sensors. Traditional IR Air mechanism is also provided for DIYers. HID lights, of course! 32 keys (upper and lower rows). Follows CrazyRedMachine's RedBoard I/O protocol. Command line of rich features. All source files open.
Thanks to many respectful guys/companies who made their tools or materials free or open source (KiCad, OnShape, InkScape, Raspberry things).
Main components on the Chu Pico Main
Chu Pico Main bill of materials (BOM)
109 components, 15 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ChuAcrylic | ChuAcrylic | U0 |
| 1 | PiPico_No_SWD | RPi_Pico_SMD_Pins_No_SWD | U1 |
| 1 | PCA9548APW | TSSOP-24_4.4x7.8mm_P0.65mm | U2 |
| 3 | MPR121QR2_BOARD | MPR121_BOARD | U3, U4, U5 |
| 5 | GP2Y0E03_REAL | GP2Y0E03_REAL | X1, X2, X3, X4, X5 |
| 24 | Conn_01x01_Female | ChuKey | K1, K2, K3, K4, K5, K6, K7, K8 +16 |
| 4 | Conn_01x01_Female | ChuKeyBiasLeft | K11, K14, K23, K26 |
| 4 | Conn_01x01_Female | ChuKeyBiasRight | K12, K13, K24, K25 |
| 6 | TOF_I2C | SH1.0_4P_Solder_Combo | PN532, TOF1, TOF2, TOF3, TOF4, TOF5 |
| 3 | SPST_EVQP4 | SW_EVQ-P46B3M | SW1, SW2, SW3 |
| 1 | U262-161N-4BVC11 | HRO-TYPE-C-31-M-12-Assembly | USB1 |
| 36 | WS2812B_Unified | WS2812B-4020 | D1, D2, D3, D4, D5, D6, D7, D8 +28 |
| 8 | 0.1uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C3, C4, C5, C6, C7, C8 |
| 2 | 5K1 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2 |
| 10 | 4.7K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R5, R6, R7, R8, R9, R10, R11 +2 |
Chu Pico Main design files
The KiCad project lives in the whowechina/chu_pico repository on GitHub; these links point at the commit this page was built from.
- LayoutPCB/main/chu_main.kicad_pcb
- SchematicPCB/main/chu_main.kicad_sch
Chu Pico Main: common questions
How big is the Chu Pico Main PCB?
The Chu Pico Main measures 294 × 100 mm, has 2 copper layers and is 1.2 mm thick.
How many components are on the Chu Pico Main?
109 components, from 15 distinct parts. The full bill of materials is listed on this page.
Where can I download the Chu Pico Main design files?
From the whowechina/chu_pico repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Chu Pico Main design in my own project?
It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.
