Board
About the Board
Board is an open source RP2040/RP2350 PCB design by wang-edward, published on GitHub under the MIT license. It is a 4-layer board measuring 300 × 120 mm, with 228 components from 66 distinct parts.
Its main chip is the RP2350_80QFN, from the RP2040/RP2350 family. Other key parts include the Oled, MAX98089ETN_T, TPS7A20xxxDBV, THB001P and TLP2310. By type, the board carries 64 capacitors, 43 diodes, 41 switches, 35 resistors, 12 ICs and 11 connectors.
From the project
Le DAW!!!
see firmware/README.md for flashing the rp2350.
Main components on the Board
Board bill of materials (BOM)
228 components, 66 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Oled | waveshare-1.5inch-oled | U101 |
| 2 | ~ | Hirose_DF40C-100DS-0.4V_2x50_P0.4mm | U102, U103 |
| 1 | MAX98089ETN_T | MAX98089ETN_T | U201 |
| 1 | TPS7A20xxxDBV | SOT-23-5 | U202 |
| 1 | RP2350_80QFN | RP2350-QFN-80-1EP_10x10_P0.4mm_EP3.4x3.4mm_ThermalVias | U301 |
| 1 | THB001P | THB001P | U302 |
| 1 | TLP2310 | SO-5-6_4.55x3.7mm_P1.27mm | U303 |
| 1 | 74AHC1G125DCKR | SOT-353_SC-70-5 | U304 |
| 1 | AP22653W6 | SOT-23-6 | U501 |
| 1 | FSUSB42MUX | MSOP-10_3x3mm_P0.5mm | U502 |
| 1 | TPS259531DSGR | SON50P200X200X80-9N | U503 |
| 1 | 12.288MHz | Oscillator_SMD_SeikoEpson_SG210-4Pin_2.5x2.0mm | Y201 |
| 1 | ABM8-272-T3 | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y301 |
| 1 | UART | PinSocket_1x03_P2.54mm_Vertical | J101 |
| 1 | CM4_DEBUG | PinSocket_1x03_P2.54mm_Vertical | J102 |
| 1 | DEBUG_PORT | PinSocket_1x03_P2.54mm_Vertical | J103 |
| 1 | LineOut | Jack_3.5mm_CUI_SJ1-3525N_Horizontal | J201 |
| 1 | Headphone | CUI_SJ-43514 | J202 |
| 1 | LineIn | Jack_3.5mm_CUI_SJ1-3525N_Horizontal | J203 |
| 1 | MidiIn | Jack_3.5mm_CUI_SJ1-3525N_Horizontal | J301 |
Show 46 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MidiOut | Jack_3.5mm_CUI_SJ1-3525N_Horizontal | J302 |
| 1 | USB_B_Micro | USB_Micro-B_Molex_47346-0001 | J501 |
| 1 | USB_C_Receptacle_PowerOnly_24P | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J502 |
| 1 | USB_C_Plug_USB2.0 | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | P501 |
| 1 | 1uF | C_0805_2012Metric | CX201 |
| 4 | RotaryEncoder_Switch | XDCR_PEC11R-4015F-S0024 | ENC301, ENC302, ENC303, ENC304 |
| 1 | Jumper_SWCLK_Open | SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP101 |
| 1 | Jumper_SWD_Open | SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP102 |
| 1 | SpeakerL | bf-32-s-8ohm | LS201 |
| 1 | SpeakerR | bf-32-s-8ohm | LS202 |
| 1 | MicL | Knowles_LGA-5_3.5x2.65mm | MK201 |
| 1 | MicR | Knowles_LGA-5_3.5x2.65mm | MK202 |
| 1 | ComputeModule4-CM4 | Raspberry-Pi-4-Compute-Module | Module101 |
| 41 | SW_Push | ks-33-2.0 | SW401, SW402, SW403, SW404, SW405, SW406, SW407, SW408 +33 |
| 1 | TerminalL | TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | T201 |
| 1 | TerminalR | TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | T202 |
| 1 | ESDA6V1BC6 | SOT-23-6 | D201 |
| 42 | LL4148 | D_MiniMELF | D301, D401, D402, D403, D404, D405, D406, D407 +34 |
| 5 | 600Ohm@100MHz | L_0805_2012Metric | FB201, FB202, FB203, FB204, FB205 |
| 1 | 3.3uH | L_pol_2016 | L301 |
| 3 | 22uF X5R 16V | C_1206_3216Metric | C101, C102, C103 |
| 6 | 10uF | C_0805_2012Metric | C201, C203, C213, C215, C313, C501 |
| 8 | 100nF | C_0805_2012Metric | C202, C204, C210, C212, C216, C327, C502, C503 |
| 16 | 1uF | C_0805_2012Metric | C205, C206, C207, C208, C209, C217, C218, C220 +8 |
| 4 | 470pF | C_0805_2012Metric | C211, C214, C219, C222 |
| 1 | 2.2uF | C_0805_2012Metric | C224 |
| 11 | 100nF | C_0402_1005Metric | C301, C303, C304, C305, C306, C307, C308, C309 +3 |
| 2 | 4.7uF | C_0402_1005Metric | C302, C314 |
| 2 | 4.7uF | C_0402_1005Metric_small_pads | C315, C316 |
| 8 | 10nF | C_0805_2012Metric | C317, C318, C319, C320, C321, C322, C323, C324 |
| 2 | 15pF | C_0402_1005Metric | C325, C326 |
| 1 | 3.3nF | C_0805_2012Metric | C505 |
| 20 | 10k | R_0805_2012Metric | R201, R203, R302, R303, R304, R305, R306, R307 +12 |
| 1 | 2.2k | R_0805_2012Metric | R202 |
| 1 | 33 | R_0402_1005Metric | R301 |
| 1 | 1k | R_0402_1005Metric | R318 |
| 1 | 220 | R_0805_2012Metric | R319 |
| 1 | 33 | R_0805_2012Metric | R320 |
| 1 | 10 | R_0805_2012Metric | R321 |
| 2 | 56k | R_0805_2012Metric | R501, R503 |
| 1 | 49.9k @ 1% | R_0805_2012Metric | R502 |
| 1 | 2.2k @ 1% | R_0805_2012Metric | R505 |
| 1 | 1M | R_0805_2012Metric | R507 |
| 1 | 390k | R_0805_2012Metric | R508 |
| 1 | 681 @ 1% | R_0805_2012Metric | R509 |
| 2 | 5.1k | R_0805_2012Metric | R510, R511 |
Board design files
The KiCad project lives in the wang-edward/ledaw repository on GitHub; these links point at the commit this page was built from.
- Layouthardware/board/board.kicad_pcb
- Schematichardware/board/board.kicad_sch
Board: common questions
What microcontroller does the Board use?
The Board is built around the RP2350_80QFN, from the RP2040/RP2350 family.
How big is the Board?
The Board measures 300 × 120 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Board?
228 components, from 66 distinct parts. The full bill of materials is listed on this page.
Where can I download the Board design files?
From the wang-edward/ledaw repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Board design in my own project?
Yes, under the terms of its MIT license, which wang-edward chose for the repository.
Can I test firmware for the Board without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.
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