4 layers100 × 100 mm
Pinball Matrix board Rev 1 routed power
Phil-CIA/Pinball-Sw-Lamp-Matrix-
This project Build 8 row x 4 row lamp and a 8x 4 switch matrix scanner board For The Captain Fantastic - Home Edition Pinball Machine
154 parts
2 layers41.2 × 10.5 mm
Dumb watch
gschuk/dumb-watch1Exercise Lab of Lecture Advanced PCB Design @ TU Darmstadt.
- Size
- 41.2 × 10.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 61
- Nets
- 130
- Pads
- 309
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 28 Oct 2026
- Updated
- 4 Nov 2026
Overview
Dumb watch is an open-source printed circuit board by gschuk, from the gschuk/dumb-watch repository on GitHub. It is a 2-layer board of 41.2 × 10.5 mm with 61 parts on 130 nets.
It is built around the RP2350A, ES8311 and MMC5603NJ, with the W25Q16JVZPIQ, BMI270 and MCP73831T-2ACI/OT-HXY among its other parts. Its parts include 21 capacitors, 14 resistors, 10 ICs, 4 connectors and 3 inductors. It belongs with the wearables boards and the RP2350 boards of this library.
Main components
12
RP2350A
QFN-60-EP(7x7)Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Watchdog reset、Integrated LDO、True random number generator (TRNG)、Hardware ECC check QFN-60-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
ES8311
QFN-20-EP(3x3)-40℃~+105℃ 0uA 1.8V~3.3V QFN-20-EP(3x3) Audio Interface ICs ROHSEverest-semiSignal Switches, Multiplexers, Decoders
MMC5603NJ
WLP-4(0.8x0.8)-40℃~+85℃ 1.62V~3.6V 20bit 750uA、1.3mA、2.4mA、3.4mA I2C ±3mT ±3mT WLP-4(0.8x0.8) 3D Magnetic Sensors ROHSMEMSIC3D Magnetic Sensors
W25Q16JVZPIQ
WSON-8-EP(5x6)-40℃~+85℃ 100,000 cycles 10ms 10uA 120ms@(32KB) 133MHz 16Mbit 2.7V~3.6V 20 Years 400us 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 FLASH
BMI270
LGA-14(2.5x3)-40℃~+85℃ 1.71V~3.6V 16bit 2KB 3.5uA Accelerometer Gyroscope SPI、I2C X,Y,Z X,Y,Z ±16g ±2000dps LGA-14(2.5x3) Accelerometers ROHSBosch SensortecAccelerometers
MCP73831T-2ACI/OT-HXY
SOT-23-5LBattery ManagementHXY MOSFET
PCF8563TDQ/TR
DFN-8-EP(2x2)-40℃~+85℃ 0.25uA 1.8V~5.5V 250nA Battery low voltage detection、Programmable clock output、Alarm function、Countdown timer External I2C Yes DFN-8-EP(2x2) Real Time Clocks ROHSHGSEMIReal Time Clocks
RCLAMP0522P-ES
DFN1610-6LESD And Surge Protection (TVS/ESD)ElecSuper
XC6206P332MR
SOT-23-40℃~+85℃@(Ta) 1 1uA 200mA 3.3V 6V Fixed Over Current Protection Positive SOT-23-3L Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTorex SemiconductorVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
EVQP3401K
SMD-4P,3.6x3.5mm-20℃~+70℃ 1.35mm 100,000 cycles 12V 2.2N 3.55mm 3.5mm 50mA PC Pin Rectangular Button SPST Surface Mount, Right Angle SMD-4P,3.6x3.5mm Tactile Switches ROHSPanasonicTactile Switches
H3V3LD5B
SOD-523-55℃~+125℃ 100W@8/20us 12.5pF 12V 200nA 3.3V 6.5V 8A@8/20us Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5 Single-channel SOD-523 ESD and Surge Protection (TVS/ESD) ROHShongjiachengESD And Surge Protection (TVS/ESD)
AOTA-B201610S3R3-101-T
0806115mΩ 2.1A 2.4A 3.3uH Molded inductor 0806 Molding Power Inductors ROHSAbraconPower Inductors
README
README.mddumb-watch
Exercise Lab of Lecture Advanced PCB Design @ TU Darmstadt.
Parts
61| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 100nF 25V | Capacitor_SMD:C_0402_1005Metric | C8, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C31, C32, C33, C34 |
| 6 | 10k | Resistor_SMD:R_0603_1608Metric | R4, R21, R22, R23, R24, R25 |
| 4 | 27 | Resistor_SMD:R_0402_1005Metric | R7, R8, R26, R27 |
| 2 | 10pF | Capacitor_SMD:C_0402_1005Metric | C5, C6 |
| 2 | 120R @ 100MHz | EasyEDA:L0603 | L2, L3 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R5, R6 |
| 2 | 4.7µF 6.3V | Capacitor_SMD:C_0603_1608Metric | C9, C10 |
| 2 | EVQP3401K | EasyEDA:KEY-SMD_4P-L4.7-W3.5_EVQ9P | SW1, SW2 |
| 2 | H3V3LD5B | EasyEDA:SOD-523_L1.2-W0.8-LS1.6-BI | D1, D2 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | 3.3µH 2.1A | EasyEDA:IND-SMD_L2.0-W1.6_AOTA-B201610S3R3-101-T | L1 |
| 1 | 33 | Resistor_SMD:R_0402_1005Metric | R9 |
| 1 | 4.7µF 6.3V | Capacitor_SMD:C_0402_1005Metric | C7 |
| 1 | ABM8-272-T3 | EasyEDA:CRYSTAL-SMD_4P-L3.2-W2.5-BL | X1 |
| 1 | BCR421UW6Q-7 | EasyEDA:SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR | U9 |
| 1 | BMI270 | EasyEDA:LGA-14_L3.0-W2.5-P0.50-BR | U5 |
| 1 | Boot | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | Conn_01x02_Pin | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | J1 |
| 1 | ES8311 | EasyEDA:WQFN-20_L3.0-W3.0-P0.40-BL-EP1.7 | U8 |
| 1 | FPC-0.5MM-16P-Slide-Lock-Top-Contact | EasyEDA:FPC-SMD_16P-P0.50_AFC07-S16ECC-00 | FPC1 |
| 1 | MCP73831T-2ACI/OT | EasyEDA:SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BL | U1 |
| 1 | MMC5603NJ | EasyEDA:FLIPCHIP-4_L0.8-W0.8-R2-C2-P0.40-TL | U7 |
| 1 | PCF8563TDQ | EasyEDA:DFN-8_L2.0-W2.0-P0.50-BL-EP1.5 | U6 |
| 1 | RCLAMP0522P-ES | EasyEDA:DFN-6_L1.6-W1.0-P0.50-BL | U10 |
| 1 | RP2350A | Package_DFN_QFN:QFN-60-1EP_7x7mm_P0.4mm_EP3.4x3.4mm | U4 |
| 1 | Reset | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP2 |
| 1 | TF PUSH | EasyEDA:TF-SMD_TF-PUSH | J4 |
| 1 | TYPE-C 16PIN 2MD | EasyEDA:USB-C-SMD_TYPE-C-16PIN-2MD-073 | J2 |
| 1 | TagConnect_TC2030-NL | Connector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J3 |
| 1 | W25Q16JVZPIQ | EasyEDA:WSON-8_L6.0-W5.0-P1.27-BL-EP | U3 |
| 1 | XC6206P332MR | EasyEDA:SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR-CW | U2 |
| 1 | ZTS6117 | EasyEDA:MIC-SMD_4P-L2.8-W1.9-P1.84-TL_ZTS6117 | MIC1 |
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Questions
How big is the Dumb watch PCB?
It measures 41.2 × 10.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Dumb watch use?
61 parts, built around the RP2350A, ES8311, MMC5603NJ and W25Q16JVZPIQ. 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 Dumb watch KiCad files?
From the gschuk/dumb-watch repository on GitHub, at the commit this page was made from: the board is hardware/dumb-watch.kicad_pcb and its schematic hardware/audio.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Dumb watch design in my own project?
Its repository states no licence, so its author keeps all rights: ask gschuk before reusing the design.