2 layers40 × 10 mm
4 layers80 × 96 mm
Smart Key Cutter Interface
brorook/SmartKeyCutterPCB- Size
- 80 × 96 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 113
- Nets
- 181
- Pads
- 587
- Tracks, vias
- 951, 155
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 27 Aug 2025
- Updated
- 3 Oct 2025
Overview
Smart Key Cutter Interface is an open-source printed circuit board by brorook, from the brorook/SmartKeyCutterPCB repository on GitHub. It is a 4-layer board of 80 × 96 mm with 113 parts on 181 nets, routed with 951 tracks and 155 vias.
It is built around the ESP32-S3-WROOM-1-N16, MAX3485ED and TPS82130SIL, with the AM26C32IDRE4, AMS1117-3.3 and USBLC6-2SC6 among its other parts. Its parts include 37 capacitors, 33 resistors, 15 ICs, 10 connectors and 5 diodes. It belongs with the interfaces and adapters boards and the ESP32 boards of this library.
Main components
8
ESP32-S3-WROOM-1-N16
SMD,25.5x18mm-103.5dBm -40℃~+85℃ 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3 On-board PCB Antenna UART、SPI、I2C、GPIO、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
MAX3485ED
SOP-8-40℃~+85℃ 1 1 10Mbps 1mA 3.135V~3.465V 32 Half-Duplex Transceiver ±8kV SOP-8 RS-485 / RS-422 ICs ROHSHTC Korea TAEJIN TechRS-485 / RS-422 ICs
TPS82130SIL
3V to 17V Input 3A Step-Down Converter MicroSiP™ Module with Integrated InductorTexas InstrumentsUncategorised
AM26C32IDRE4
SOIC-16Enable shutdown、Tx/Rx enable SOIC-16 RS-485 / RS-422 ICs ROHSTexas InstrumentsRS-485/RS-422 ICs
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)
L8050QLT1G
SOT-23-55℃~+150℃ 1 NPN 100 150nA 225mW 25V 500mV 5V 800mA NPN SOT-23 Bipolar (BJT) ROHSLeshan Radio (LRC)Bipolar (BJT)
G230P06K
TO-252-55℃~+150℃ 1 P-Channel 115W 17mΩ@10V 2.5V 238pF 240pF 4.581nF 60A 60V 62nC@10V P-Channel TO-252 MOSFETs ROHSGOFORDMOSFETs
Parts
113| Qty | Value | Footprint | References |
|---|---|---|---|
| 22 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3, C10, C11, C12, C14, C22, C23, C24, C25, C28, C30, C31, C32, C33 +6 |
| 9 | 10k | Resistor_SMD:R_0402_1005Metric | R4, R5, R11, R24, R25, R26, R27, R28, R32 |
| 5 | 0 | Resistor_SMD:R_0402_1005Metric | R7, R8, R9, R10, R12 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 1.8V | LED_SMD:LED_0402_1005Metric | D3, D4, D5 |
| 2 | 100k | Resistor_SMD:R_0402_1005Metric | R17, R21 |
| 2 | 100u | Capacitor_SMD:CP_Elec_5x5.3 | C27, C35 |
| 2 | 10uF | Capacitor_SMD:C_0603_1608Metric | C16, C38 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric | R1, R6 |
| 2 | 20k | Resistor_SMD:R_0402_1005Metric | R29, R30 |
| 2 | 22k | Resistor_SMD:R_0402_1005Metric | R14, R15 |
| 2 | 22nF | Capacitor_SMD:C_0402_1005Metric | C21, C29 |
| 2 | 22uF | Capacitor_SMD:C_1206_3216Metric | C15, C17 |
| 2 | 280 | Resistor_SMD:R_0402_1005Metric | R13, R19 |
| 2 | 2k | Resistor_SMD:R_0402_1005Metric | R18, R33 |
| 2 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C26, C34 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R22, R23 |
| 2 | AM26C32IDR | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U10, U12 |
| 2 | Encoder | Ingenium:JST_SM08B-SRSS-TB | J2, J3 |
| 2 | L8050QLT1G | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q1, Q2 |
| 2 | NEMA8 | Connector_JST:JST_XH_S4B-XH-A_1x04_P2.50mm_Horizontal | M1, M2 |
| 2 | SW_Push | Button_Switch_SMD:SW_SPST_PTS647_Sx38 | SW1, SW2 |
| 2 | TXU0104PWR | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U1, U2 |
| 2 | ~ | Ingenium:VQFN-28-1EP_5x5mm_P0.5mm_EP3.7x3.7mm_ThermalVias | U9, U11 |
| 1 | 0.15 | Resistor_SMD:R_2512_6332Metric | R16 |
| 1 | 100nF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C39 |
| 1 | 10u | Capacitor_SMD:C_0402_1005Metric | C9 |
| 1 | 120 | Resistor_SMD:R_0402_1005Metric | R31 |
| 1 | 124018612112A | Ingenium:AMPHENOL_124018612112A | J4 |
| 1 | 1u | Capacitor_SMD:C_0402_1005Metric | C8 |
| 1 | 22.1k | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | 22uF | Capacitor_SMD:C_0603_1608Metric | C20 |
| 1 | 3S Charger | Ingenium:Type C BMS 3S 2A | U14 |
| 1 | 430pF | Capacitor_SMD:C_0603_1608Metric | C18 |
| 1 | 47.5k | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | 503398-1892 | Ingenium:MOLEX_503398-1892 | J5 |
| 1 | 523k | Resistor_SMD:R_0402_1005Metric | R20 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U7 |
| 1 | Battery | Connector_JST:JST_XH_S2B-XH-A_1x02_P2.50mm_Horizontal | J1 |
| 1 | CP2102N-Axx-xQFN28 | Package_DFN_QFN:QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm | U4 |
| 1 | Conn_01x03 | Connector_JST:JST_GH_SM03B-GHS-TB_1x03-1MP_P1.25mm_Horizontal | J8 |
| 1 | ESP32-S3-WROOM-1-N16 | RF_Module:ESP32-S3-WROOM-1 | U5 |
| 1 | Feeltech | Connector_JST:JST_XH_S4B-XH-A_1x04_P2.50mm_Horizontal | J9 |
| 1 | G230P06K | Package_TO_SOT_SMD:TO-252-2 | Q3 |
| 1 | INA228 | Package_SO:VSSOP-10_3x3mm_P0.5mm | U6 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | LED-SWITCH | Connector_JST:JST_XH_S2B-XH-A_1x02_P2.50mm_Horizontal | J10 |
| 1 | M5-Power | Connector_JST:JST_XH_S2B-XH-A_1x02_P2.50mm_Horizontal | J6 |
| 1 | M5-RED | Connector_JST:JST_PH_S4B-PH-K_1x04_P2.00mm_Horizontal | J7 |
| 1 | MAX3485 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U15 |
| 1 | MMSZ5240B-7-F | Diode_SMD:D_SOD-123 | D2 |
| 1 | ON/OFF | Connector_JST:JST_XH_S2B-XH-A_1x02_P2.50mm_Horizontal | SW3 |
| 1 | SN74HC4066PWR | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U3 |
| 1 | TPS82130 | Ingenium:TPS82130 | U8 |
| 1 | TestPoint | Ingenium:RH-5015 | TP1 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U13 |
More from brorook/SmartKeyCutterPCB
1Similar boards
- 4 layers144.1 × 93.3 mm
- 4 layers73.9 × 63.8 mm
- 6 layers133.1 × 133.1 mm
AERIS H743-PCB
7903555032/AERIS-H743-PCB
A 6-layer STM32H743-based embedded development and flight-control/data-logging PCB designed as a practical hardware-design and PCB-layout project.
114 parts1 - 2 layers100 × 100 mm
- 2 layers100 × 100 mm
- 4 layers104.4 × 50.9 mm
ChristmasLight
bamnet/village
I have a collection of 1-2 dozen Department 56 lighted Christmas houses. The default lighting solution has a big problem though: a house is either lit or not.
56 partsApache-2.0 - 4 layers64 × 56 mm
Esp32s3-devkit-5v
eshelton328/forge
Hardware design monorepo with software-grade CI/CD. KiCad PCB projects with automated ERC/DRC, multi-fab rule validation, schematic & BOM checks, and auto-generated board documentation.
124 parts - 4 layers
Questions
How big is the Smart Key Cutter Interface PCB?
It measures 80 × 96 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Smart Key Cutter Interface use?
113 parts, built around the ESP32-S3-WROOM-1-N16, MAX3485ED, TPS82130SIL and AM26C32IDRE4. 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 Smart Key Cutter Interface KiCad files?
From the brorook/SmartKeyCutterPCB repository on GitHub, at the commit this page was made from: the board is Smart Key Cutter Interface.kicad_pcb and its schematic Battery.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Smart Key Cutter Interface design in my own project?
Its repository states no licence, so its author keeps all rights: ask brorook before reusing the design.