2 layers84 × 98 mm
2 layers80 × 50 mm
Prototype badge
mpkendall/prototype-badge4pcb badges for prototype!
- Size
- 80 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 69
- Nets
- 81
- Pads
- 272
- Tracks, vias
- 528, 153
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 26 Nov 2025
- Updated
- 19 Dec 2025
Overview
Prototype badge is an open-source printed circuit board by mpkendall, from the mpkendall/prototype-badge repository on GitHub, published under the MIT licence. It is a 2-layer board of 80 × 50 mm with 69 parts on 81 nets, routed with 528 tracks and 153 vias.
It is built around the RP2040, LMV321 and W25Q32JVSSIQ, with the AMS1117-3.3, USBLC6-2SC6 and MBR0530 among its other parts. Its parts include 29 capacitors, 13 resistors, 7 switches, 6 ICs and 5 diodes. It belongs with the lEDs and displays boards and the RP2040 boards of this library.
Main components
7
RP2040
LQFN-56(7x7)12bit 133MHz 30 LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
LMV321
SOT-23-5L-2.75V~-1.25V、1.25V~2.75V 0℃~+70℃ 1 10pA 10pA 1MHz 2.1V~5.5V 20mA 20nV/√Hz@10kHz 520V/ms 60uA 70dB 800uV Built-in compensation Rail-to-Rail Input, Rail-to-Rail Output SOT-23-5L Operational Amplifier ROHSJiangsu Changjing Electronics Technology (CJ)Operational Amplifier
W25Q32JVSSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 133MHz 1uA 2.7V~3.6V 20 Years 32Mbit 3ms SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage 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
SI1308EDL
SC-70-3-55℃~+150℃ 1 N-channel 1.4nC@10V 1.5A 1.5V 105pF 11pF 132mΩ@10V 23pF 30V 400mW N-Channel SOT-323 MOSFETs ROHSVishay IntertechnologyMOSFETs
README
README.mdprototype-badge
pcb badges for prototype!
Parts
69| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 100nF | Capacitor_SMD:C_0402_1005Metric | C3, C6, C7, C10, C11, C12, C13, C14, C15, C16, C29 |
| 11 | 1uF | Capacitor_SMD:C_0603_1608Metric | C8, C9, C18, C20, C21, C22, C23, C24, C25, C26, C28 |
| 3 | 10kR | Resistor_SMD:R_0402_1005Metric | R3, R13, R14 |
| 3 | MBR0530 | Diode_SMD:D_SOD-123 | D1, D2, D3 |
| 2 | 10uF | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 12pF | Capacitor_SMD:C_0402_1005Metric | C4, C5 |
| 2 | 1kR | Resistor_SMD:R_0402_1005Metric | R6, R7 |
| 2 | 27.4R | Resistor_SMD:R_0402_1005Metric | R4, R5 |
| 2 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C17, C19 |
| 2 | 5.1kR | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | LOGO | LOGO | G***, G*** |
| 1 | 1.755uH | footprints:nfc-coil-2 | L2 |
| 1 | 10uH | Inductor_SMD:L_APV_ANR4018 | L1 |
| 1 | 12MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 1MR | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 2.2R | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | 220kR | Resistor_SMD:R_0603_1608Metric | R15 |
| 1 | 220nF | Capacitor_SMD:C_0402_1005Metric | C27 |
| 1 | 47R | Resistor_SMD:R_0603_1608Metric | R12 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | BOOTSEL | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW1 |
| 1 | Conn_01x11_Socket | Connector_PinSocket_2.54mm:PinSocket_1x11_P2.54mm_Vertical | J3 |
| 1 | D_Photo | OptoDevice:Kingbright_KPS-3227 | D5 |
| 1 | E-Ink | Connector_FFC-FPC:TE_2-1734839-4_1x24-1MP_P0.5mm_Horizontal | J2 |
| 1 | GCT4105 | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
| 1 | LED_Small | LED_SMD:LED_0603_1608Metric | D4 |
| 1 | LIGHTPROG | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW7 |
| 1 | LMV321 | Package_TO_SOT_SMD:SOT-23-5 | U6 |
| 1 | NT3H2111-2211 | footprints:NT3H2111W0FHKH | U5 |
| 1 | RESET | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW2 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U4 |
| 1 | Si1308EDL | Package_TO_SOT_SMD:SOT-323_SC-70 | Q1 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U1 |
| 1 | User1 | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW3 |
| 1 | User2 | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW4 |
| 1 | User3 | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW5 |
| 1 | User4 | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW6 |
| 1 | W25Q32JVSS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U3 |
Questions
How big is the Prototype badge PCB?
It measures 80 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Prototype badge use?
69 parts, built around the RP2040, LMV321, W25Q32JVSSIQ and AMS1117-3.3. 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 Prototype badge KiCad files?
From the mpkendall/prototype-badge repository on GitHub, at the commit this page was made from: the board is hardware/prototype-badge.kicad_pcb and its schematic hardware/prototype-badge.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Prototype badge 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).
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