2 layers121.8 × 78.3 mm
2 layers49 × 73 mm
Atmega
devan0404/Pcb-Design- Size
- 49 × 73 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 21
- Nets
- 32
- Pads
- 90
- Tracks, vias
- 121, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 17 Mar 2026
- Updated
- 17 Mar 2026
Overview
Atmega is an open-source printed circuit board by devan0404, from the devan0404/Pcb-Design repository on GitHub. It is a 2-layer board of 49 × 73 mm with 21 parts on 32 nets, routed with 121 tracks and 0 vias.
It is built around the ATMEGA328-PU, L7805 and 1N4148WT. Its parts include 8 connectors, 5 capacitors, 2 resistors, 2 ICs and 2 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
3
ATMEGA328-PU
PDIP-28-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH PDIP-28 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
L7805
TO-220ST0℃~+125℃@(Tj) 1 1.2A 20V 2V@(1A) 42uV 500uA 5V 73dB@(120Hz) Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
1N4148WT
SOD-523-55℃~+150℃ 1.25V@150mA 100V 150mA 150mW 1uA@75V 2A 4ns Independent SOD-523 Switching Diodes ROHShongjiachengSwitching Diodes
Parts
21| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 10u | Capacitor_THT:C_Radial_D5.0mm_H7.0mm_P2.00mm | C2, C3 |
| 2 | 22p | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C4, C5 |
| 2 | Conn_01x06_Pin | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J2, J7 |
| 2 | Power | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J4, J5 |
| 1 | 100n | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C1 |
| 1 | 10k | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R1 |
| 1 | 16Mhz | Crystal:Crystal_HC49-4H_Vertical | Y1 |
| 1 | 1N4148WT | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 1 | 1k | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R2 |
| 1 | ATmega328-P | Package_DIP:DIP-28_W7.62mm | U2 |
| 1 | Barrel_Jack_Switch | Connector_BarrelJack:BarrelJack_Horizontal | J1 |
| 1 | Conn_01x08_Pin | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J8 |
| 1 | L7805 | Package_TO_SOT_THT:TO-220-3_Vertical | U1 |
| 1 | LED | LED_THT:LED_D5.0mm | D2 |
| 1 | Power_BP | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | RST | Button_Switch_THT:SW_PUSH_6mm | SW1 |
| 1 | USB to TTL | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J6 |
Questions
How big is the Atmega PCB?
It measures 49 × 73 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Atmega use?
21 parts, built around the ATMEGA328-PU, L7805 and 1N4148WT. 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 Atmega KiCad files?
From the devan0404/Pcb-Design repository on GitHub, at the commit this page was made from: the board is atmega.kicad_pcb and its schematic atmega.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Atmega design in my own project?
Its repository states no licence, so its author keeps all rights: ask devan0404 before reusing the design.
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