4 layers65 × 56 mm
4 layers300 × 120 mm
Ledaw
wang-edward/ledaw5Le DAW!!!
- Size
- 300 × 120 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 265
- Nets
- 314
- Pads
- 1,056
- Tracks, vias
- 1,881, 371
- Pours
- 16
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 18 Feb 2026
- Updated
- 1 Nov 2026
Overview
Ledaw is an open-source printed circuit board by wang-edward, from the wang-edward/ledaw repository on GitHub, published under the MIT licence. It is a 4-layer board of 300 × 120 mm with 265 parts on 314 nets, routed with 1,881 tracks and 371 vias.
It is built around the 74AHC1G125DCKRE4, 74LVC1G07SE-7-MS and LL4148, with the TCC0805X7R105K500DT, TCC0805X7R106K100FT and X1G0041710019 among its other parts. Its parts include 68 capacitors, 46 diodes, 41 switches, 37 resistors and 10 connectors. It belongs with the RP2350 and Raspberry Pi (Linux) boards of this library.
Main components
11
74AHC1G125DCKRE4
SC-70-5-40℃~+125℃ 1 1 10uA 2V~5.5V 7.5ns@5V,50pF 74AHC 8mA 8mA Output enable、Level shifting Tri-State Unidirectional SC-70-5 Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers74LVC1G07SE-7-MS
SC-70-5SC-70-5 Buffers, Drivers, Receivers, Transceivers ROHSMSKSEMIBuffers, Drivers, Receivers, Transceivers
LL4148
LL-341 Independent 1V@10mA 200mA 4A 4ns 500mW 5uA@75V 75V LL-34 Switching Diodes ROHSMDDSwitching Diodes
TCC0805X7R105K500DT
08051uF 50V X7R ±10% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSCCTCMultilayer Ceramic Capacitors MLCC - SMD/SMTTCC0805X7R106K100FT
080510V 10uF X7R ±10% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSCCTCMultilayer Ceramic Capacitors MLCC - SMD/SMT
X1G0041710019
SMD2520-4P-40℃~+85℃ 1.62V~3.63V 1.8mA 12.288MHz CMOS ±50ppm SMD2520-4P Crystal Oscillators ROHSSeiko EpsonCrystal Oscillators
RC0603FR-071KL
UncategorisedUnknown maker
ESDA6V1BC6
SOT-23-6L-40℃~+125℃@(Ta) 1uA 20pF 4 5V 6.1V 6.1V 80W Bidirectional ESD IEC 61000-4-2 SOT-23-6L ESD and Surge Protection (TVS/ESD) ROHSSTMicroelectronicsESD And Surge Protection (TVS/ESD)
XL-2012UBC
0805-40℃~+85℃ 120° 20mA 260mcd 3.2V 460nm~475nm 470nm 70mW Blue Discrete Diode Top-mount Water Clear 0805 LED Indication - Discrete ROHSXINGLIGHTLED Indication - DiscreteKT-0805G
0805-40℃~+85℃ 100mW 120° 2.6V~3.1V 430mcd 513nm~528nm 525nm 5mA Discrete Diode Emerald Green Water Clear 0805 LED Indication - Discrete ROHSHubei KENTO ElecLED Indication - DiscreteNCD0805R1
LED0805-30℃~+85℃ 1.6V~2.6V 130° 195mcd 25mA 615nm~630nm 630nm 65mW Discrete Diode Red 0805 LED Indication - Discrete ROHSFoshan NationStar OptoelectronicsLED Indication - Discrete
README
README.mdledaw
run desktop app
cargo runbuild
cargo buildbuild firmware
cargo build -p firmwaretest
cargo testlint + format
# rustup component add clippy rustfmt # if you don't have it
cargo clippy --all-targets --all-features
cargo fmt --checkFirmware
see firmware/README.md for flashing the rp2350.
pics
Video demo
Video demo 2 (art project)
Parts
265| Qty | Value | Footprint | References |
|---|---|---|---|
| 42 | LL4148 | Diode_SMD:D_MiniMELF | D301, D401, D402, D403, D404, D405, D406, D407, D408, D409, D410, D411, D412, D413, D414, D415 +26 |
| 41 | SW_Push | ledaw:ks-33-2.0 | SW401, SW402, SW403, SW404, SW405, SW406, SW407, SW408, SW409, SW410, SW411, SW412, SW413, SW414, SW415, SW416 +25 |
| 19 | 10k | Resistor_SMD:R_0805_2012Metric | R201, R203, R302, R303, R304, R305, R306, R307, R308, R309, R310, R311, R312, R313, R314, R315 +3 |
| 17 | 1uF | Capacitor_SMD:C_0805_2012Metric | C205, C206, C207, C208, C209, C217, C218, C220, C221, C223, C225, C226, C227, C228, C229, C503 +1 |
| 11 | 100nF | Capacitor_SMD:C_0402_1005Metric | C301, C303, C304, C305, C306, C307, C308, C309, C310, C311, C312 |
| 10 | 100nF | Capacitor_SMD:C_0805_2012Metric | C202, C204, C210, C212, C216, C327, C328, C329, C330, C501 |
| 8 | 10nF | Capacitor_SMD:C_0805_2012Metric | C317, C318, C319, C320, C321, C322, C323, C324 |
| 8 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H101, H102, H103, H104, H105, H106, H107, H108 |
| 5 | 10uF | Capacitor_SMD:C_0805_2012Metric | C201, C203, C213, C215, C313 |
| 4 | 470pF | Capacitor_SMD:C_0805_2012Metric | C211, C214, C219, C222 |
| 4 | 600Ohm@100MHz, 1A | Inductor_SMD:L_0805_2012Metric | FB202, FB203, FB204, FB205 |
| 4 | RotaryEncoder_Switch | ledaw:XDCR_PEC11R-4015F-S0024 | ENC301, ENC302, ENC303, ENC304 |
| 3 | 22uF X5R 16V | Capacitor_SMD:C_1206_3216Metric | C101, C102, C103 |
| 2 | 15pF | Capacitor_SMD:C_0402_1005Metric | C325, C326 |
| 2 | 1k | Resistor_SMD:R_0805_2012Metric | R101, R102 |
| 2 | 2.2K 1% | Resistor_SMD:R_0805_2012Metric | R501, R502 |
| 2 | 4.7k | Resistor_SMD:R_0805_2012Metric | R103, R104 |
| 2 | 4.7uF | RP2350_80QFN_minimal:C_0402_1005Metric_small_pads | C315, C316 |
| 2 | 4.7uF | Capacitor_SMD:C_0402_1005Metric | C302, C314 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric | R510, R511 |
| 2 | Jumper_SWCLK_Open | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP101, JP103 |
| 2 | ~ | ledaw:dummy_hirose | U102, U103 |
| 1 | 10 | Resistor_SMD:R_0805_2012Metric | R321 |
| 1 | 10 uF, 10 V, X7R ceramic | Capacitor_SMD:C_0805_2012Metric | C104 |
| 1 | 10-22 µF, 10 V tantalum, ESR 0.033-2.2 Ω over operating conditions | Capacitor_Tantalum_SMD:CP_EIA-3528-21_Kemet-B | C105 |
| 1 | 12.288MHz | Oscillator:Oscillator_SMD_SeikoEpson_SG210-4Pin_2.5x2.0mm | Y201 |
| 1 | 1M | Resistor_SMD:R_0805_2012Metric | R503 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric | R318 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R322 |
| 1 | 2.2k | Resistor_SMD:R_0805_2012Metric | R202 |
| 1 | 2.2uF | Capacitor_SMD:C_0805_2012Metric | C224 |
| 1 | 220 | Resistor_SMD:R_0805_2012Metric | R319 |
| 1 | 3.3nF | Capacitor_SMD:C_0805_2012Metric | C502 |
| 1 | 3.3uH | RP2350_80QFN_minimal:L_pol_2016 | L301 |
| 1 | 33 | Resistor_SMD:R_0402_1005Metric | R301 |
| 1 | 33 | Resistor_SMD:R_0805_2012Metric | R320 |
| 1 | 390k | Resistor_SMD:R_0805_2012Metric | R504 |
| 1 | 600Ohm@100MHz | Inductor_SMD:L_0805_2012Metric | FB201 |
| 1 | 681 @ 1% | Resistor_SMD:R_0805_2012Metric | R506 |
| 1 | 74AHC1G125DCKR | Package_TO_SOT_SMD:SOT-353_SC-70-5 | U304 |
| 1 | 74LVC1G07SE-7 | Package_TO_SOT_SMD:SOT-353_SC-70-5 | U104 |
| 1 | AUDIO_LDO_IN | ledaw:named_TestPoint | TP217 |
| 1 | AUDIO_LDO_OUT | ledaw:named_TestPoint | TP218 |
| 1 | CM4_1V8 | ledaw:named_TestPoint | TP105 |
| 1 | CM4_3V3 | ledaw:named_TestPoint | TP104 |
| 1 | CM4_5V | ledaw:named_TestPoint | TP103 |
| 1 | CM4_DEBUG | ledaw:named_PinSocket_01x03 | J102 |
| 1 | CM4_STATUS | ledaw:named_PinSocket_01x03 | J106 |
| 1 | CM4_UART | ledaw:named_PinSocket_01x03 | J101 |
| 1 | CODEC_MCLK | ledaw:named_TestPoint | TP201 |
| 1 | ComputeModule4-CM4 | ledaw:Raspberry-Pi-4-Compute-Module | Module101 |
| 1 | ESDA6V1BC6 | Package_TO_SOT_SMD:SOT-23-6 | D201 |
| 1 | GND | ledaw:named_TestPoint | TP106 |
| 1 | HPSNS | ledaw:named_TestPoint | TP214 |
| 1 | Headphone | ledaw:CUI_SJ-43514 | J202 |
| 1 | JACKSENSE | ledaw:named_TestPoint | TP203 |
| 1 | Jumper_SWD_Open | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP102 |
| 1 | LDO_IN(5V) | ledaw:named_TestPoint | TP101 |
| 1 | LDO_OUT(3V3) | ledaw:named_TestPoint | TP102 |
| 1 | LED Blue | LED_SMD:LED_0805_2012Metric | D302 |
| 1 | LED Green | LED_SMD:LED_0805_2012Metric | D101 |
| 1 | LED Red | LED_SMD:LED_0805_2012Metric | D102 |
| 1 | LineIn | Connector_Audio:Jack_3.5mm_CUI_SJ1-3525N_Horizontal | J203 |
| 1 | LineOut | Connector_Audio:Jack_3.5mm_CUI_SJ1-3525N_Horizontal | J201 |
| 1 | MAX98089ETN_T | ledaw:MAX98089ETN_T | U201 |
| 1 | MCU_1V1 | ledaw:named_TestPoint | TP302 |
| 1 | MCU_3V3 | ledaw:named_TestPoint | TP301 |
| 1 | MCU_DEBUG | ledaw:named_PinSocket_01x03 | J103 |
| 1 | MCU_UART | ledaw:named_PinSocket_01x03 | J104 |
| 1 | MCU_VREGA | ledaw:named_TestPoint | TP303 |
| 1 | MICBIAS | ledaw:named_TestPoint | TP207 |
| 1 | MicL | Sensor_Audio:Knowles_LGA-5_3.5x2.65mm | MK201 |
| 1 | MicR | Sensor_Audio:Knowles_LGA-5_3.5x2.65mm | MK202 |
| 1 | MidiIn | Connector_Audio:Jack_3.5mm_CUI_SJ1-3525N_Horizontal | J301 |
| 1 | MidiOut | Connector_Audio:Jack_3.5mm_CUI_SJ1-3525N_Horizontal | J302 |
| 1 | NCP1117-3.3_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U105 |
| 1 | NetTie_2 | NetTie:NetTie-2_SMD_Pad0.5mm | NT201 |
| 1 | Oled | ledaw:waveshare-1.5inch-oled | U101 |
| 1 | RP2354B_80QFN | RP2350_80QFN_minimal:RP2350-QFN-80-1EP_10x10_P0.4mm_EP3.4x3.4mm_ThermalVias | U301 |
| 1 | RUN | ledaw:named_TestPoint | TP107 |
The 252 most common of 265 parts.
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Questions
How big is the Ledaw PCB?
It measures 300 × 120 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Ledaw use?
265 parts, built around the 74AHC1G125DCKRE4, 74LVC1G07SE-7-MS, LL4148 and TCC0805X7R105K500DT. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Ledaw KiCad files?
From the wang-edward/ledaw repository on GitHub, at the commit this page was made from: the board is hardware/board/board.kicad_pcb and its schematic hardware/RP-008173-DS-1-CM4IO-KiCAD/CM4IOv5.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Ledaw design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).