2 layers68.6 × 53.3 mm
2 layers70 × 50.5 mm
Arduino Uno
Tetteh-EkuPrince/KicadProject_ArduinoUno- Size
- 70 × 50.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 46
- Nets
- 75
- Pads
- 247
- Tracks, vias
- 414, 47
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 12 Aug 2026
- Updated
- 12 Aug 2026
Overview
Arduino Uno is an open-source printed circuit board by Tetteh-EkuPrince, from the Tetteh-EkuPrince/KicadProject_ArduinoUno repository on GitHub. It is a 2-layer board of 70 × 50.5 mm with 46 parts on 75 nets, routed with 414 tracks and 47 vias.
It is built around the ATMEGA16U2-MU, ATMEGA328P-PU and LMV358, with the LP2985-33DBV, CD1206-S01575 and FDN340P among its other parts. Its parts include 8 ICs, 7 connectors, 6 capacitors, 4 inductors and 3 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
7
ATMEGA16U2-MU
QFN-32-EP(5x5)-40℃~+85℃ 16KB 16MHz 2.7V~5.5V 22 512Byte 512Byte 8 Bit AVR Built-in FLASH QFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
ATMEGA328P-PU
DIP-28-300mil-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH DIP-28-300mil Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
LMV358
SOP-8-40℃~+125℃ 10pA 10pA 1MHz 2 2.5V~5.5V 20mA 20nV/√Hz@10kHz 2uV/℃ 40uA 5mV 600V/ms 65dB EMI filtering/RF suppression Rail-to-Rail Input, Rail-to-Rail Output SOP-8 Operational Amplifier ROHSTECH PUBLICOperational Amplifier
LP2985-33DBV
SOT-23-5-40℃~+125℃@(Tj) 1 150mA 16V 3.3V 30uVrms 45dB@(1kHz) 575mV@(150mA) 850uA Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Enable control、Noise bypass terminal Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
CD1206-S01575
1206-55℃~+125℃ 150mA 1V@50mA 2.5uA@75V 400mW 4A 4ns 75V Standalone 1206 Switching Diodes ROHSBournsSwitching Diodes
FDN340P
SOT-23-55℃~+150℃ 1 P-Channel 1.5V 121pF 20V 2A 500mW 56pF 7.2nC@4.5V 70mΩ@4.5V 779pF P-Channel SOT-23 MOSFETs ROHSonsemiMOSFETs
MF-MSMF050-2
1812-40℃~+85℃ 100A 150mΩ 15V 1A 1Ω 3.2mm 5.4mm 500mA 1812 Resettable Fuses ROHSBournsResettable Fuses
README
README.mdKicadProject_ArduinoUno
This repository contains the KiCad schematic, PCB layout files, BOM, and generated Gerber/Drill files for the Arduino Uno project.
Parts
46| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | LMV358 | Package_SO:MSOP-8_3x3mm_P0.65mm | U5, U5, U5, U7 |
| 3 | YELLOW | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L2, RX1, TX1 |
| 2 | 100n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C6 |
| 2 | 22R | Resistor_SMD:R_0201_0603Metric_Pad0.64x0.40mm_HandSolder | RN3A1, RN3D1 |
| 2 | 22p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C9, C11 |
| 2 | 47u | Capacitor_SMD:CP_Elec_6.3x5.4 | PC1, PC2 |
| 2 | Conn_01x08 | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical | J4, J6 |
| 2 | Conn_02x03_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J3, J5 |
| 2 | Varistor | Resistor_SMD:R_0201_0603Metric_Pad0.64x0.40mm_HandSolder | RV2, RV3 |
| 1 | 100N | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5 |
| 1 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | RN1C1 |
| 1 | 10X1F-H8.5 | Connector_PinSocket_2.54mm:PinSocket_1x10_P2.54mm_Vertical | IOH1 |
| 1 | 16Hz | Crystal:Crystal_HC49-4H_Vertical | Y1 |
| 1 | 1M | Resistor_SMD:R_0201_0603Metric_Pad0.64x0.40mm_HandSolder | R1 |
| 1 | 1N4007 | Diode_THT:D_DO-41_SOD81_P7.62mm_Horizontal | D4 |
| 1 | 1N914 | Diode_SMD:D_SOD-123 | D2 |
| 1 | 1u | Capacitor_SMD:C_01005_0402Metric | C3 |
| 1 | 6X1F-H8.5 | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | AD1 |
| 1 | ATmega16U2-M | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm | U3 |
| 1 | ATmega328P-P | Package_DIP:DIP-28_W7.62mm | U4 |
| 1 | BLM21 | Inductor_SMD:L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | L1 |
| 1 | Barrel_Jack_MountingPin | Connector_BarrelJack:BarrelJack_Horizontal | J2 |
| 1 | CD1206-S01575 | Diode_SMD:D_SOD-123 | D3 |
| 1 | Conn_02x02_Odd_Even | Connector_PinHeader_1.27mm:PinHeader_2x02_P1.27mm_Vertical | J8 |
| 1 | FDN340P | Package_TO_SOT_SMD:SOT-23 | T1 |
| 1 | LP2985-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U6 |
| 1 | MF-MSMF050-2 | MF-MSMF050-2:FUSM4632X85 | F1 |
| 1 | NCP1117-3.3_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | ON | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | GREEN1 |
| 1 | R | Resistor_SMD:R_0201_0603Metric_Pad0.64x0.40mm_HandSolder | R2 |
| 1 | Resonator_Small | Crystal:Resonator_SMD_Murata_CSTxExxV-3Pin_3.0x1.1mm_HandSoldering | Y2 |
| 1 | SW_Push_Shielded | Button_Switch_SMD:SW_Push_1P1T-MP_NO_Horizontal_Alps_SKRTLAE010 | SW2 |
| 1 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | RESET1 |
| 1 | USB_B | footprints:USB-B-S-X-X-TH | J1 |
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Questions
How big is the Arduino Uno PCB?
It measures 70 × 50.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Arduino Uno use?
46 parts, built around the ATMEGA16U2-MU, ATMEGA328P-PU, LMV358 and LP2985-33DBV. 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 Arduino Uno KiCad files?
From the Tetteh-EkuPrince/KicadProject_ArduinoUno repository on GitHub, at the commit this page was made from: the board is Arduino Uno_complete/Arduino Uno.kicad_pcb and its schematic Arduino Uno_complete/Arduino Uno.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Arduino Uno design in my own project?
Its repository states no licence, so its author keeps all rights: ask Tetteh-EkuPrince before reusing the design.