2 layers76 × 56 mm
2 layers73 × 55 mm
Arduino Uno REV3 schematic, PCB layout, component analysis and PCB routing guide using Kicad
- Size
- 73 × 55 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 47
- Nets
- 90
- Pads
- 210
- Tracks, vias
- 535, 35
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 1 Aug 2026
- Updated
- 1 Aug 2026
Overview
Dede is an open-source printed circuit board by ELDAD-hub, from the ELDAD-hub/Arduino-Uno-PCB repository on GitHub. It is a 2-layer board of 73 × 55 mm with 47 parts on 90 nets, routed with 535 tracks and 35 vias.
It is built around the ATMEGA16U2-MU, ATMEGA328P-PU and LMV358, with the LP2985-33DBV and TS3A24159DGSR-TP among its other parts. Its parts include 8 connectors, 7 capacitors, 6 ICs, 3 diodes and 3 crystals. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
5
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
TS3A24159DGSR-TP
MSOP-10LAnalog Switches, MultiplexersTECH PUBLIC
README
README.mdArduino-Uno-PCB
Arduino Uno REV3 schematic, PCB layout, component analysis and PCB routing guide using Kicad
Parts
47| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 1k | Resistor_SMD:R_0603_1608Metric | RN2A1, RN2A2, RN2A3, RN2A4, RN2A5, RN2A6, RN2A7, RN2A8, RN2A9, RN2A11, RN2A12, RN2A13, RN2A14, RN2A15, RN2A16 |
| 5 | 1u | Capacitor_SMD:C_1206_3216Metric | C3, C5, C8, C9, C14 |
| 2 | 10K | Resistor_SMD:R_0603_1608Metric | RN1A1, RN1B1 |
| 2 | C_Polarized | Capacitor_SMD:CP_Elec_5x3.9 | C2, C4 |
| 2 | Conn_01x08 | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical | J8, J10 |
| 2 | Conn_02x03_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J4, J4 |
| 2 | LED | LED_SMD:LED_1210_3225Metric | D5, D7 |
| 2 | R_Variable | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 1 | ATmega16U2-M | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.7x3.7mm | U5 |
| 1 | ATmega328P-P | Package_DIP:DIP-28_W7.62mm_SMDSocket_SmallPads | U6 |
| 1 | Barrel_Jack_MountingPin | Connector_BarrelJack:BarrelJack_Horizontal | J9 |
| 1 | Conn_01x06 | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J1 |
| 1 | Conn_01x10 | Connector_PinSocket_2.54mm:PinSocket_1x10_P2.54mm_Vertical | J6 |
| 1 | Crystal | Crystal:Crystal_HC49-4H_Vertical | Y2 |
| 1 | Crystal | Crystal:Crystal_SMD_5032-2Pin_5.0x3.2mm_HandSoldering | Y1 |
| 1 | D | Diode_SMD:D_1206_3216Metric | D2 |
| 1 | LMV358 | Package_SO:OnSemi_Micro8 | U5A1 |
| 1 | LOGO | LOGO | G*** |
| 1 | LP2985-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | NCP1117-5.0_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U4 |
| 1 | Resonator | Crystal:Resonator_SMD_Murata_SFECV-3Pin_6.9x2.9mm | Y3 |
| 1 | TS3A24159DGSR | Package_SO:TSSOP-10_3x3mm_P0.5mm | U3 |
| 1 | USB_B | Connector_USB:USB_B_Lumberg_2411_02_Horizontal | J5 |
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Questions
How big is the Dede PCB?
It measures 73 × 55 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Dede use?
47 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 Dede KiCad files?
From the ELDAD-hub/Arduino-Uno-PCB repository on GitHub, at the commit this page was made from: the board is Arduino Uno Project/dede.kicad_pcb and its schematic Arduino Uno Project/dede.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Dede design in my own project?
Its repository states no licence, so its author keeps all rights: ask ELDAD-hub before reusing the design.