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Atmega328p standalone board

BenRoe·atmega328p-standalone-board

Atmega328p standalone board layout, top view — open source AVR/Arduino board by BenRoe
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About the Atmega328p standalone board

Atmega328p standalone board is an open source AVR/Arduino PCB design by BenRoe, published on GitHub. It is a 2-layer board measuring 47 × 88 mm, with 29 components from 21 distinct parts.

Its main chip is the ATmega328P-PU, from the AVR/Arduino family. By type, the board carries 9 resistors, 7 connectors, 5 capacitors, 3 diodes, 2 switches and 1 IC.

It belongs with the dev boards & breakouts designs in this gallery.

From the project

Development board for the Atmega328P with USB-C connector and only through hole components.

Development board for the Atmega328P with USB-C connector and only through hole components. It's very handy to flash the bootloader on many Atmega328P IC's.

- ISP 6/10 header for bootloader flashing (recommend USBaspLoader) - USB-C connector (if USBaspLoader bootloader is on the Atmega328P, you can flash the firmware via USB) - ISP activity led (MISO Pin) - Boot/Reset switch - ZIF socket for easy MCU swap

Atmega328p standalone board, from the project README
From the project README

Main components on the Atmega328p standalone board

ATmega328P-PU

Atmega328p standalone board bill of materials (BOM)

29 components, 21 distinct parts.

QtyPartRefs
1
ATmega328P-PU
U1
1
16Mhz
Y1
1
USB4085-GF-A_REVA
J1
1
ISP6PIN
J2
1
ISP10PIN
J3
1
I2C
J4
3
Conn_01x06
J5, J6, J7
1
500mA
F1
1
RESET
SW1
1
BOOT
SW2
2
3.6V
D1, D2
1
LED
D3
2
22pF
C1, C2
1
4.7uF
C3
2
100nF
C4, C5
1
10K
R1
2
5.1k
R2, R3
1
1.5k
R4
2
75R
R5, R6
2
4.7K
R7, R8
Show 1 more
QtyPartRefs
1
1K
R9

Atmega328p standalone board design files

The KiCad project lives in the BenRoe/atmega328p-standalone-board repository on GitHub; these links point at the commit this page was built from.

Atmega328p standalone board: common questions

What microcontroller does the Atmega328p standalone board use?

The Atmega328p standalone board is built around the ATmega328P-PU, from the AVR/Arduino family.

How big is the Atmega328p standalone board?

The Atmega328p standalone board measures 47 × 88 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Atmega328p standalone board?

29 components, from 21 distinct parts. The full bill of materials is listed on this page.

Where can I download the Atmega328p standalone board design files?

From the BenRoe/atmega328p-standalone-board repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Atmega328p standalone board design in my own project?

The repository has no license, so all rights stay with BenRoe. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Atmega328p standalone board 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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