2 layers58.8 × 55.7 mm
A1s mini
martinroger/ipodesp32
An iPod emulator for 2006-2013 BMW Mini Coopers that need Bluetooth
86 parts24MIT
2 layers58.8 × 55.7 mm
AiO i2s DAC
martinroger/ipodesp3224An iPod emulator for 2006-2013 BMW Mini Coopers that need Bluetooth
- Size
- 58.8 × 55.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 102
- Nets
- 117
- Pads
- 412
- Tracks, vias
- 817, 367
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 21 Feb 2024
- Updated
- 17 Oct 2026
Overview
AiO i2s DAC is an open-source printed circuit board by martinroger, from the martinroger/ipodesp32 repository on GitHub, published under the MIT licence. It is a 2-layer board of 58.8 × 55.7 mm with 102 parts on 117 nets, routed with 817 tracks and 367 vias.
It is built around the ESP32-WROVER-E(4MB), CP2102-GM and AZ1117CH-3.3TRG1, with the PCM5102APW, 1N5819HW-7-F-01 and MBT3904DW1 among its other parts. Its parts include 36 resistors, 26 capacitors, 10 diodes, 7 connectors and 5 ICs. It belongs with the audio and music boards and the ESP32 boards of this library.
Main components
10
ESP32-WROVER-E(4MB)
SMD,18x31.4mmSMD,18x31.4mm WiFi Modules ROHSEspressif SystemsWiFi Modules
CP2102-GM
QFN-28-EP(5x5)-40℃~+85℃ 1 12Mbps 3V~3.6V USB 2.0 USB to UART QFN-28-EP(5x5) USB Converters ROHSSilicon LabsUSB Converters
AZ1117CH-3.3TRG1
SOT-223-20℃~+125℃@(Tj) 0.003%Vout 1 1.2V@(800mA) 1.35A 10V 3.3V 4mA 70dB@(120Hz) Fixed Over Current Protection、Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
PCM5102APW
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
1N5819HW-7-F-01
SOD-123Schottky DiodesDiodes Incorporated
MBT3904DW1
SOT-363-55℃~+150℃ 100 150mW 2 NPN 200mA 300MHz 300mV 40V 50nA 6V NPN SOT-363 Bipolar (BJT) ROHSonsemiBipolar (BJT)
SP0503BAHTG
SOT-143-55℃~+125℃ 10A@8/20us 14V 150W@8/20us 30pF、60pF 5.5V 6V 80nA ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Three channels Unidirectional SOT-143 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
TL3305BF260QG
SMD-4P,4.5x4.5mm-20℃~+70℃ 12V 2.6N 200,000 Cycles 4.5mm 4.5mm 50mA 5mm Gull Wing Red Round Button SPST Surface Mount,Vertical Without Bracket SMD-4P,4.5x4.5mm Tactile Switches ROHSE-SwitchTactile Switches
USB4105-GF-A
SMD-40℃~+85℃ 1 12P 48V 5A Black Female Surface Mount, Right Angle Type-C USB 2.0 SMD USB Connectors ROHSGlobal Connector Technology (GCT)USB Connectors
SJ-3524-SMT-TR
SMDSMD Audio Connectors ROHSCUIAudio Connectors (Headphones)
README
pcbs/AiO-i2s-DAC/readme.mdHow to use this KiCad template
Step 1 - Clone the repository to a folder on your harddrive using git
Step 2 - Configure Paths in KiCad
Step 3 - Point to that template folder in the KiCad preferences
Step 4 - Create a new project from template in KiCad
Step 5 - Select the PCBWay template
Step 6 - Design your project!
Parts
102| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 10K 1% | Resistor_SMD:R_0603_1608Metric | R7, R12, R13, R14, R32, R33, R36, R37, R38, R39, R40 |
| 10 | 0.1uF 50V | Capacitor_SMD:C_0603_1608Metric | C1, C3, C8, C9, C11, C14, C18, C22, C23, C25 |
| 7 | 0R | Resistor_SMD:R_0603_1608Metric | R18, R19, R21, R26, R27, R29, R41 |
| 6 | 1K 1% | Resistor_SMD:R_0603_1608Metric | R1, R2, R5, R6, R34, R35 |
| 5 | TestPoint_Small | TestPoint:TestPoint_Pad_D1.0mm | 3V1, 5V1, DCD1, GND1, VBUS1 |
| 4 | 10uF 10V | Capacitor_SMD:C_0603_1608Metric | C10, C12, C13, C15 |
| 4 | 10uF 16V | Capacitor_SMD:C_0805_2012Metric | C21, C24, C26, C29 |
| 4 | 2.1V G 10mA | LED_SMD:LED_0603_1608Metric | D1, D2, D9, D11 |
| 4 | 22uF 10V | Capacitor_SMD:C_0805_2012Metric | C2, C6, C7, C16 |
| 4 | 5.1K 1% | Resistor_SMD:R_0603_1608Metric | R20, R22, R28, R30 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad_TopBottom | H1, H2, H3, H4 |
| 2 | 1N5819HW-7-F | DIY:SOD3716X145N | D10, D14 |
| 2 | 2.2nF | Capacitor_SMD:C_0603_1608Metric | C27, C28 |
| 2 | 2.2uF 16V | Capacitor_SMD:C_0603_1608Metric | C17, C20 |
| 2 | 22.1K 1% | Resistor_SMD:R_0603_1608Metric | R15, R23 |
| 2 | 2K 1% | Resistor_SMD:R_0603_1608Metric | R17, R25 |
| 2 | 47.5K 1% | Resistor_SMD:R_0603_1608Metric | R16, R24 |
| 2 | 470R 1% | Resistor_SMD:R_0603_1608Metric | R3, R4 |
| 2 | CP2102-GM | Package_DFN_QFN:QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm | U3, U4 |
| 2 | MBT3904DW1 | Package_TO_SOT_SMD:SOT-363_SC-70-6 | Q4, Q6 |
| 2 | SP0503BAHTG | Package_TO_SOT_SMD:SOT-143 | D7, D8 |
| 2 | TL3305BF260QG | DIY:TL3305BF260QG | S1, S2 |
| 2 | USB4105-GF-A | DIY:GCT_USB4105-GF-A | J5, J6 |
| 1 | 120R@100MHz | Inductor_SMD:L_0603_1608Metric | FB1 |
| 1 | 2.1V O 10mA | LED_SMD:LED_0603_1608Metric | D5 |
| 1 | 2V R 10mA | LED_SMD:LED_0603_1608Metric | D6 |
| 1 | AZ1117CH-3.3TRG1 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | ActDCD | Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm | JP1 |
| 1 | Audio Out | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | BC818 | Package_TO_SOT_SMD:SOT-23 | Q3 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J7 |
| 1 | ESP32-WROVER-E | PCM_Espressif:ESP32-WROVER-E_ThermalVias | U1 |
| 1 | Ferrite bypass | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP3 |
| 1 | PCM5102A | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U5 |
| 1 | SIL_BOOT | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP2 |
| 1 | SJ-3524-SMT-TR | Connector_Audio:Jack_3.5mm_CUI_SJ-3524-SMT_Horizontal | J2 |
| 1 | UART0 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | UART1 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J1 |
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Questions
How big is the AiO i2s DAC PCB?
It measures 58.8 × 55.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the AiO i2s DAC use?
102 parts, built around the ESP32-WROVER-E(4MB), CP2102-GM, AZ1117CH-3.3TRG1 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 AiO i2s DAC KiCad files?
From the martinroger/ipodesp32 repository on GitHub, at the commit this page was made from: the board is pcbs/AiO-i2s-DAC/AiO-i2s-DAC.kicad_pcb and its schematic pcbs/AiO-i2s-DAC/AiO-i2s-DAC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the AiO i2s DAC 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).