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ATmega based mixed signal design

Melek-Cherif·ATmega_based_mixed_signal_design·Mixed_Signal_Design/Mixed_Signal_Design.kicad_pcb

ATmega based mixed signal design PCB layout, top view — open source AVR/Arduino board by Melek-Cherif

About the ATmega based mixed signal design PCB

ATmega based mixed signal design is an open source AVR/Arduino PCB design by Melek-Cherif, published on GitHub. It is a 4-layer board measuring 53.5 × 39.8 mm, with 36 components from 18 distinct parts.

Its main chip is the ATmega8L-8A, from the AVR/Arduino family. Other key parts include the LM1117DT-5.0. By type, the board carries 20 capacitors, 4 resistors, 3 ICs, 3 connectors, 3 diodes and 1 crystal.

From the project

This repo showcase a Kicad project based on the ATmega328p microcontroller.

├── 📂 MixedSignalDesign/ │ ├── 📄 MixedSignalDesign.kicadpro │ ├── 📄 MixedSignalDesign.kicadpcb │ ├── 📄 MixedSignalDesign.kicadsch │ ├── 📂 schematics/ │ │ └── 📄 MixedSignalDesign.pdf │ └── 📂 fabricationoutput/ │ ├── 📂 BOM/ │ │ └── 📄 MixedSignalDesign.csv │ └── 📂 gerber/ │ ├── 📂 images/ │ ├── 📄 3dview.png │ └── 📄 pcblayout.png └── 📄 README.md

ATmega based mixed signal design, from the project README
From the project README

Main components on the ATmega based mixed signal design

LM1117DT-5.0ATmega8L-8A

ATmega based mixed signal design bill of materials (BOM)

36 components, 18 distinct parts.

QtyPartRefs
2
LM1117DT-5.0
U1, U2
1
ATmega8L-8A
U4
1
16MHz
Y1
1
Barrel_Jack
J1
1
AVR-ISP-6
J2
1
Conn_01x08_Pin
J4
1
RESET
SW1
2
LED
D1, D3
1
1N5712UR
D2
1
1K
FB1
4
10uF
C1, C3, C5, C7
10
0.1uF
C2, C4, C6, C8, C10, C11, C12, C13 +2
4
4.7uF
C9, C16, C17, C18
2
22pF
C14, C15
1
4.7K
R1
1
3.3K
R2
1
10K
R3
1
0
R4

ATmega based mixed signal design design files

The KiCad project lives in the Melek-Cherif/ATmega_based_mixed_signal_design repository on GitHub; these links point at the commit this page was built from.

ATmega based mixed signal design: common questions

What microcontroller does the ATmega based mixed signal design use?

The ATmega based mixed signal design is built around the ATmega8L-8A, from the AVR/Arduino family.

How big is the ATmega based mixed signal design PCB?

The ATmega based mixed signal design measures 53.5 × 39.8 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the ATmega based mixed signal design?

36 components, from 18 distinct parts. The full bill of materials is listed on this page.

Where can I download the ATmega based mixed signal design design files?

From the Melek-Cherif/ATmega_based_mixed_signal_design repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the ATmega based mixed signal design design in my own project?

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

Can I test firmware for the ATmega based mixed signal design 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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