2 layers63.2 × 23.8 mm
Wand
ayuusweetfish/Malletwand
A pendulum as a hands-on musical interface for all · NIME 2024 Short Paper
68 parts1CERN-OHL-S-2.0
2 layers100 × 68 mm
AICHO
ayuusweetfish/AICHO(✔️ Docs to-do) 《同呼吸：生灵和鸣》互动装置 · Interactive installation on machines' lifelike reactions to life · 2024 全国美展
- Size
- 100 × 68 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 124
- Nets
- 104
- Pads
- 483
- Tracks, vias
- 682, 203
- Pours
- 12
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 1 Jun 2024
- Updated
- 21 Oct 2025
Overview
AICHO is an open-source printed circuit board by ayuusweetfish, from the ayuusweetfish/AICHO repository on GitHub. It is a 2-layer board of 100 × 68 mm with 124 parts on 104 nets, routed with 682 tracks and 203 vias.
It is built around the RP2040, SN74AHCT245PWRE4 and W25Q128JVPIQ, with the PCM5102APW, SPX3819M5-L-3-3 and USBLC6-2SC6 among its other parts. Its parts include 44 capacitors, 23 connectors, 14 diodes, 13 resistors and 12 transistors. It belongs with the RP2040 boards of this library.
Main components
8
RP2040
LQFN-56(7x7)12bit 133MHz 30 LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
SN74AHCT245PWRE4
TSSOP-20-40℃~+125℃ 1 11ns@5V,50pF 4.5V~5.5V 40uA 74AHCT 8 8mA 8mA Bidirectional Edge rate controllable、Output enable、Level shifting Tri-State TSSOP-20 Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers
W25Q128JVPIQ
WSON-8-EP(5x6)-40℃~+85℃ 100,000 cycles 10uA 120ms@(32KB) 128Mbit 133MHz 2.7V~3.6V 20 Years Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection、Power lock protection SPI WSON-8-EP(5x6) NOR FLASH ROHSWinbond ElecNOR FLASHPCM5102APW
TSSOP-20-25℃~+85℃ 1.8V~3.3V 2 32 384kHz 500uA 50MHz Audio Decoder Digital filtering、Power-down mode I2S TSSOP-20 ADCs/DACs - Special Purpose ROHSTexas InstrumentsADCs/DACs - Special Purpose
SPX3819M5-L-3-3
SOT-23-5-40℃~+85℃@(Ta) 1 20V 3.3V 420mV@(100mA) 500mA 5uA 70dB@(1kHz) Fixed Over Current Protection、Over Temperature Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTECH PUBLICVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
MBR0530
SOD-1231 Independent 30V 5.5A 500mA 550mV@500mA 80uA@30V SOD-123 Schottky Diodes ROHSJiangsu Changjing Electronics Technology (CJ)Schottky Diodes
SI2302
SOT-23-55℃~+150℃ 1 N-channel 120pF 1V 1W 20V 300pF 3A 4nC@4.5V 65mΩ@2.5V 80pF N-Channel SOT-23 MOSFETs ROHSYONGYUTAIMOSFETs
Parts
124| Qty | Value | Footprint | References |
|---|---|---|---|
| 21 | 100n | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3, C4, C10, C14, C17, C19, C21, C23, C25, C30, C35, C37, C39, C41 +5 |
| 14 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J21, J22, J102, J103, J104, J202, J203, J204, J302, J303, J304, J402, J403, J404 |
| 12 | MBR0530 | Diode_SMD:D_SOD-123 | D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14 |
| 12 | Si2302 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12 |
| 7 | 10u | Capacitor_SMD:C_0603_1608Metric | C18, C20, C22, C24, C36, C38, C40 |
| 4 | 2.2u | Capacitor_SMD:C_0402_1005Metric | C26, C27, C32, C42 |
| 4 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J101, J201, J301, J401 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_2.5mm_Pad_Via | H1, H2, H3, H4 |
| 3 | 1u | Capacitor_SMD:C_0402_1005Metric | C8, C11, C31 |
| 3 | 2.2n | Capacitor_SMD:C_0402_1005Metric | C28, C29, C43 |
| 3 | 470 | Resistor_SMD:R_0402_1005Metric | R8, R9, R13 |
| 2 | 27 | Resistor_SMD:R_0603_1608Metric | R2, R3 |
| 2 | 27p | Capacitor_SMD:C_0402_1005Metric | C12, C13 |
| 2 | 470n | Capacitor_SMD:C_0402_1005Metric | C33, C34 |
| 2 | 7.5k | Resistor_SMD:R_0603_1608Metric | R6, R7 |
| 2 | AudioJack3_SwitchTR | Connector_Audio:Jack_3.5mm_CUI_SJ1-3525N_Horizontal | J4, J6 |
| 2 | LOGO | LOGO | G***, G*** |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric | R12 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 10n | Capacitor_SMD:C_0603_1608Metric | C15 |
| 1 | 120R | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | 12MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 150k | Resistor_SMD:R_0402_1005Metric | R11 |
| 1 | 1k TBD | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 2.2k | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | 4.7k | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C16 |
| 1 | Conn_01x06 | AICHO_footprints:TestPoints_1x06_P2.0 | J1 |
| 1 | MAX9814 | Package_DFN_QFN:DFN-14-1EP_3x3mm_P0.4mm_EP1.78x2.35mm | U7 |
| 1 | OPA1622 | Package_SON:Texas_S-PVSON-N10 | U6 |
| 1 | PCM1808PWR | PCM1808PWR:PCM1808PWR | U8 |
| 1 | PCM5102A | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U5 |
| 1 | Pink | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U1 |
| 1 | SN74AHCT245PWR | SN74AHCT245PWR:SOP65P640X120-20N | U9 |
| 1 | SPX3819M5-L-3-3 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | Speaker | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J5 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U4 |
| 1 | USB_A | Connector_USB:USB_A_CNCTech_1001-011-01101_Horizontal | J2 |
| 1 | Violet | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | W25Q128JVPIQ | W25Q128JVPIQ:SON127P600X500X80-9N-D | U2 |
Questions
How big is the AICHO PCB?
It measures 100 × 68 mm and has 2 copper layers, 1.6 mm thick.
What parts does the AICHO use?
124 parts, built around the RP2040, SN74AHCT245PWRE4, W25Q128JVPIQ and PCM5102APW. 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 AICHO KiCad files?
From the ayuusweetfish/AICHO repository on GitHub, at the commit this page was made from: the board is hw/AICHO.kicad_pcb and its schematic hw/AICHO.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the AICHO design in my own project?
Its repository states no licence, so its author keeps all rights: ask ayuusweetfish before reusing the design.
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