4 layers177 × 110 mm
6 layers51 × 65 mm
uwu
- Size
- 51 × 65 mm
- Copper layers
- 6
- Thickness
- 1.6 mm
- Parts
- 135
- Nets
- 133
- Pads
- 645
- Tracks, vias
- 1,669, 250
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 5 Jun 2025
- Updated
- 3 Aug 2025
Overview
Owo is an open-source printed circuit board by hydrastro, from the hydrastro/owo repository on GitHub. It is a 6-layer board of 51 × 65 mm with 135 parts on 133 nets, routed with 1,669 tracks and 250 vias.
It is built around the ESP32-C6-WROOM-1-N8, PCM5122PW and TPS62840DLCR, with the KMR241GLFS, BQ24074RGTR and CD74HC4067M among its other parts. Its parts include 43 capacitors, 40 resistors, 14 ICs, 10 switches and 8 diodes. It belongs with the ESP32 and RISC-V boards of this library.
Main components
12
ESP32-C6-WROOM-1-N8
SMD,25.5x18mm-40℃~+85℃ -99.2dBm 2.4GHz 20.5dBm 382mA 3V~3.6V 78mA ESP32-C6 On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
PCM5122PW
TSSOP-28-25℃~+85℃ 0.6mA 2 24 3.3V~3.6V 384kHz Audio Decoder Digital filtering、Power-down mode SPI、I2S TSSOP-28 Digital to Analog Converters (DAC) ROHSTexas InstrumentsADCs/DACs - Special Purpose
TPS62840DLCR
VSON-8(1.5x2)-40℃~+125℃@(TJ) 1 1.8MHz 1.8V~3.3V 1.8V~6.5V 60nA 750mA Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Output discharge、Cycle-by-cycle current limiting Step-down type Yes VSON-8(1.5x2) DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
KMR241GLFS
SMD-40℃~+85℃ 1.9mm 100,000 cycles 2.8mm 32V 4.6mm 4N 50mA Gull Wing Round Button SPST-NO Surface Mount,Vertical SMD Tactile Switches ROHSC&KTactile Switches
BQ24074RGTR
QFN-16-EP(3x3)-40℃~+125℃ 1 1.5A 4.2V 4.35V~10.2V 6.5uA Charging IC Lithium Battery Not supported Support QFN-16-EP(3x3) Battery Management ROHSTexas InstrumentsBattery Management
CD74HC4067M
SOIC-24-300mil-55℃~+125℃ 16 160Ω 16:1 22ns 2V~6V 345ns 365ns 89MHz Bidirectional analog channel、Glitch-free switching SOIC-24-300mil Analog Switches, Multiplexers ROHSTexas InstrumentsAnalog Switches, Multiplexers
LM27762DSS
WSON-12-EP(2x3)-40℃~+85℃ -5V~-1.5V、1.5V~5V 2.5Ω 2.7V~5.5V 250mA 2MHz 390uA Inverted Support WSON-12-EP(2x3) Charge Pumps ROHSTexas InstrumentsCharge Pumps
KMR221GLFS
SMD,4.6x2.8mm-40℃~+85℃ 1.9mm 2.8mm 2N 32V 4.6mm 50mA Gull Wing Round Button SPST Surface Mount,Vertical SMD,4.6x2.8mm Tactile Switches ROHSC&KTactile Switches
SP1005-01WTG
0201-40℃~+125℃ 100nA 10A@8/20us 15.6V 30pF 6V 8.5V Bidirectional IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 TVS 0201 ESD and Surge Protection (TVS/ESD) ROHSLittelfuseESD And Surge Protection (TVS/ESD)
AYZ0102AGRLC
SMD-10℃~+60℃ 12V PC Pin Rectangular Columnar SPDT Surface Mount,Vertical SMD Slide Switches ROHSC&KSlide Switches
SJ-43516-SMT-TR
SMD-20℃~+85℃ 12V 1A 3.5mm Headphone Jack Brass、Copper alloy Silver SMD Audio Connectors ROHSCUIAudio Connectors (Headphones)
ASE-24.576MHZ-ET
SMD3225-4P-20℃~+70℃ 13mA 24.576MHz 3.3V SMD3225-4P Crystal Oscillators ROHSAbraconCrystal Oscillators
Parts
135| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 10k | Resistor_SMD:R_0603_1608Metric | R24, R26, R27, R36, R40, R43, R44, R45, R46 |
| 7 | KMR221GLFS | uwu:SW4_KMR221GLFS_CNK | SW1, SW2, SW3, SW4, SW5, SW6, SW7 |
| 6 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C3, C9, C14, C16, C17, C21 |
| 5 | 10uF/16V | Capacitor_Tantalum_SMD:CP_EIA-3528-21_Kemet-B | C33, C35, C37, C38, C40 |
| 5 | 1uF | Capacitor_SMD:C_0603_1608Metric | C1, C10, C15, C18, C50 |
| 4 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C19, C20, C25, C26 |
| 4 | 0.1uF/100V | Capacitor_SMD:C_0805_2012Metric | C32, C34, C36, C39 |
| 4 | 10 | Resistor_SMD:R_0603_1608Metric | R14, R15, R30, R31 |
| 4 | 22uF | Capacitor_SMD:C_0805_2012Metric | C46, C47, C48, C49 |
| 4 | 470pF | Capacitor_SMD:C_0402_1005Metric | C4, C5, C11, C12 |
| 4 | 768 | Resistor_SMD:R_0603_1608Metric | R5, R6, R29, R32 |
| 4 | KMR241GLFS | uwu:SWITCH_241GLFS | U8, U9, U12, U13 |
| 4 | SP1005-01WTG | PCM_Diode_SMD_AKL:D_0201_0603Metric | D3, D4, D5, D6 |
| 3 | 1M | Resistor_SMD:R_0603_1608Metric | R34, R35, R37 |
| 3 | AYZ0102AGRLC | uwu:SW_AYZ0102AGRLC | S1, S2, S3 |
| 3 | RIC11-22S11K5S-USMT | uwu:XDCR_RIC11-22S11K5S-USMT | MT1, MT2, MT3 |
| 2 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C43, C45 |
| 2 | 1.1k | Resistor_SMD:R_0603_1608Metric | R47, R48 |
| 2 | 1.5k@100MHz | PCM_Ferrite_SMD_AKL:Ferrite_0603_1608Metric | FB3, FB4 |
| 2 | 10uF | Capacitor_Tantalum_SMD:CP_EIA-3528-21_Kemet-B | C42, C44 |
| 2 | 12pF | Capacitor_SMD:C_0402_1005Metric | C27, C28 |
| 2 | 2.2k | Resistor_SMD:R_0603_1608Metric | R7, R28 |
| 2 | 2.2uF/25V | Capacitor_SMD:C_0603_1608Metric | C29, C41 |
| 2 | 4.7k | Resistor_SMD:R_0603_1608Metric | R18, R19 |
| 2 | 499 | Resistor_SMD:R_0603_1608Metric | R11, R12 |
| 2 | 76.8k | Resistor_SMD:R_0603_1608Metric | R9, R13 |
| 2 | LED | PCM_LED_SMD_AKL:LED_PLCC-2_2216 | D1, D2 |
| 2 | OPA1622 | Package_SON:Texas_S-PVSON-N10 | U7, U14 |
| 2 | SJ-43516-SMT-TR | uwu:CUI_SJ2-35894D-SMT-TR | J1, J2 |
| 1 | 1.13k | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 1.2k | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 1.8k | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R23 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 10uF/25V | Capacitor_SMD:C_0805_2012Metric | C6 |
| 1 | 2.2uF | Capacitor_SMD:C_0603_1608Metric | C13 |
| 1 | 2.2uH | Inductor_SMD:L_1008_2520Metric | L1 |
| 1 | 20 | Resistor_SMD:R_0603_1608Metric | R21 |
| 1 | 220@100MHz | PCM_Ferrite_SMD_AKL:Ferrite_0603_1608Metric | FB5 |
| 1 | 238k | Resistor_SMD:R_0603_1608Metric | R10 |
| 1 | 243k | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 267k | Resistor_SMD:R_0603_1608Metric | R22 |
| 1 | 285k | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 3.7V | uwu:CONN_B2B-ZR-SM4-TF_JST | J5 |
| 1 | 32.768kHz 9pF | Crystal:Crystal_SMD_0603-2Pin_6.0x3.5mm | Y1 |
| 1 | 503398-1892 | uwu:MOLEX_503398-1892 | J4 |
| 1 | 5051102291 | uwu:CON_5051102291_MOL | J3 |
| 1 | 600@100MHz | PCM_Ferrite_SMD_AKL:Ferrite_0805_2012Metric | FB1 |
| 1 | 7.5M | Resistor_SMD:R_0603_1608Metric | R25 |
| 1 | ASE-24.576MHz | Oscillator:Oscillator_SMD_Abracon_ASE-4Pin_3.2x2.5mm | X2 |
| 1 | ASE-45.1584MHz | Oscillator:Oscillator_SMD_Abracon_ASE-4Pin_3.2x2.5mm | X1 |
| 1 | BQ24074RGT | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm | U1 |
| 1 | CD74HC4067M | Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm | U5 |
| 1 | ESP32-C6-WROOM-1 | PCM_Espressif:ESP32-C6-WROOM-1 | U11 |
| 1 | LM27762 | Package_SON:WSON-12-1EP_3x2mm_P0.5mm_EP1x2.65_ThermalVias | U3 |
| 1 | MCP23017_ML | Package_DFN_QFN:QFN-28-1EP_6x6mm_P0.65mm_EP4.25x4.25mm | U10 |
| 1 | NMOS | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | NTC 10k | Resistor_SMD:R_0603_1608Metric | TH1 |
| 1 | PCM5122PW | Package_SO:TSSOP-28_4.4x9.7mm_P0.65mm | U6 |
| 1 | PMOS | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | SMF05CT | PCM_Package_TO_SOT_SMD_AKL:SOT-363_SC-70-6 | D9 |
| 1 | SS14 | PCM_Diode_SMD_AKL:D_SMA | D10 |
| 1 | TPS62840DLCR | uwu:SON50P200X150X100-8N | U4 |
| 1 | TPS7A20xxxDQN | Package_SON:Texas_X2SON-4_1x1mm_P0.65mm | U2 |
| 1 | USB4110GFA | uwu:GCT_USB4110GFA | J6 |
Questions
How big is the Owo PCB?
It measures 51 × 65 mm and has 6 copper layers, 1.6 mm thick.
What parts does the Owo use?
135 parts, built around the ESP32-C6-WROOM-1-N8, PCM5122PW, TPS62840DLCR and KMR241GLFS. 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 Owo KiCad files?
From the hydrastro/owo repository on GitHub, at the commit this page was made from: the board is owo.kicad_pcb and its schematic MCU.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Owo design in my own project?
Its repository states no licence, so its author keeps all rights: ask hydrastro before reusing the design.
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