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Atmega328p-DATA-LOGGER

ArbazAkhtar·Atmega328p-DATA-LOGGER

Atmega328p-DATA-LOGGER PCB layout, top view — open source AVR/Arduino board by ArbazAkhtar

About the Atmega328p-DATA-LOGGER PCB

Atmega328p-DATA-LOGGER is an open source AVR/Arduino PCB design by ArbazAkhtar, published on GitHub. It is a 4-layer board measuring 47.1 × 30.5 mm, with 25 components from 16 distinct parts.

Its main chip is the ATMEGA328P-AU, from the AVR/Arduino family. Other key parts include the 24LC1025 and DS1337S_. By type, the board carries 7 resistors, 5 capacitors, 4 ICs, 4 connectors, 2 crystals and 2 diodes.

It belongs with the power & battery and sensors designs in this gallery.

From the project

ATmega328P data logger with DS1337 RTC and 256 KB EEPROM. One KiCad schematic, two PCB layouts (2-layer and 4-layer) managed with Git branches.

An ATmega328P-based standalone data logger with a battery-backed real-time clock, 256 KB of external EEPROM, and breakout headers for external sensors.

The point of this project isn't only the board — it's the workflow. A single schematic feeds two independent PCB layouts (2-layer and 4-layer), managed with Git branches so both stackups stay in sync with one source of truth.

Atmega328p-DATA-LOGGER, from the project README
From the project README

Main components on the Atmega328p-DATA-LOGGER

24LC1025DS1337S_ATMEGA328P-AU

Atmega328p-DATA-LOGGER bill of materials (BOM)

25 components, 16 distinct parts.

QtyPartRefs
2
24LC1025
U1, U3
1
DS1337S_
U2
1
ATMEGA328P-AU
U4
1
32.768k
Y1
1
16M
Y2
2
Conn_01x04_Pin
J1, J2
1
Conn_01x09_Pin
J3
1
Conn_02x03_Odd_Even
J4
1
Battery
BT1
2
LED
D1, D2
2
0.1μ
C1, C4
2
22p
C2, C3
1
100n
C5
3
10k
R1, R2, R6
2
4.7k
R3, R4
2
330
R5, R7

Atmega328p-DATA-LOGGER design files

The KiCad project lives in the ArbazAkhtar/Atmega328p-DATA-LOGGER repository on GitHub; these links point at the commit this page was built from.

Atmega328p-DATA-LOGGER: common questions

What microcontroller does the Atmega328p-DATA-LOGGER use?

The Atmega328p-DATA-LOGGER is built around the ATMEGA328P-AU, from the AVR/Arduino family.

How big is the Atmega328p-DATA-LOGGER PCB?

The Atmega328p-DATA-LOGGER measures 47.1 × 30.5 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Atmega328p-DATA-LOGGER?

25 components, from 16 distinct parts. The full bill of materials is listed on this page.

Where can I download the Atmega328p-DATA-LOGGER design files?

From the ArbazAkhtar/Atmega328p-DATA-LOGGER repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Atmega328p-DATA-LOGGER design in my own project?

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

Can I test firmware for the Atmega328p-DATA-LOGGER 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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