Atmega328 minimal V20
About the Atmega328 minimal V20 PCB
Atmega328 minimal V20 is an open source AVR/Arduino PCB design by rzuehlsd, published on GitHub. It is a 2-layer board measuring 35.6 × 59.2 mm, with 17 components from 14 distinct parts.
Its main chip is the ATmega8-16P / ATmega328 P, from the AVR/Arduino family. Other key parts include the KIA7805. By type, the board carries 6 capacitors, 3 connectors, 2 ICs, 2 diodes, 2 resistors and 1 crystal.
It belongs with the dev boards & breakouts and usb & debug tools designs in this gallery.
From the project
Minimal Arduino compatible ATmega8 development board
This is a minimal Arduino-compatible development board designed for the ATmega8/ATmega328 microcontroller family. The V2.0 variant features an extended 26-pin board adapter while maintaining identical functionality to the original design.
- Dimensions: Compact form factor optimized for breadboard use - Mounting: 4x mounting holes (2mm diameter) - Pin Header Spacing: 30.73mm between pin headers - PCB: Professional 2-layer design with silk screen
Main components on the Atmega328 minimal V20
Atmega328 minimal V20 bill of materials (BOM)
17 components, 14 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATmega8-16P / ATmega328 P | DIP-28_W7.62mm | U1 |
| 1 | KIA7805 | TO-220F-3_Horizontal_TabDown | U2 |
| 1 | 16MHz | Resonator-2Pin_W10.0mm_H5.0mm | Y1 |
| 1 | FTDI Serial to USB | PinSocket_1x06_P2.54mm_Vertical | J1 |
| 1 | Module Interface Connector | PinHeader_2x13_P2.54mm_Horizontal | J2 |
| 1 | ISP | PinSocket_2x03_P2.54mm_Vertical | J4 |
| 1 | Reset | SW_PUSH_6mm_H5mm | SW1 |
| 1 | MBR0520LT | D_A-405_P7.62mm_Horizontal | D1 |
| 1 | Blink LED | LED_D3.0mm | D2 |
| 1 | 10u | CP_Radial_D5.0mm_P2.00mm | C1 |
| 3 | 0.1u | C_Rect_L7.0mm_W2.5mm_P5.00mm | C2, C3, C4 |
| 2 | 22p | C_Disc_D3.8mm_W2.6mm_P2.50mm | C5, C6 |
| 1 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R2 |
| 1 | 470 | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R3 |
Atmega328 minimal V20 design files
The KiCad project lives in the rzuehlsd/Minimal-Atmega8-board repository on GitHub; these links point at the commit this page was built from.
Atmega328 minimal V20: common questions
What microcontroller does the Atmega328 minimal V20 use?
The Atmega328 minimal V20 is built around the ATmega8-16P / ATmega328 P, from the AVR/Arduino family.
How big is the Atmega328 minimal V20 PCB?
The Atmega328 minimal V20 measures 35.6 × 59.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Atmega328 minimal V20?
17 components, from 14 distinct parts. The full bill of materials is listed on this page.
Where can I download the Atmega328 minimal V20 design files?
From the rzuehlsd/Minimal-Atmega8-board repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Atmega328 minimal V20 design in my own project?
The repository has no license, so all rights stay with rzuehlsd. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Atmega328 minimal V20 without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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