HardLabs

Mini-SMD

colinleroy·BurgerDisk·PCB/Mini-SMD/Mini-SMD.kicad_pcb

Mini-SMD PCB layout, top view — open source AVR/Arduino board by colinleroy

About the Mini-SMD PCB

Mini-SMD is an open source AVR/Arduino PCB design by colinleroy, published on GitHub under the MIT license. It is a 2-layer board measuring 65.1 × 97 mm, with 28 components from 22 distinct parts.

Its main chip is the ATmega328P-AU, from the AVR/Arduino family. Other key parts include the PC817C-S, SE5218 and TXB0104PWR. By type, the board carries 7 resistors, 6 connectors, 6 capacitors, 4 ICs, 3 diodes and 1 crystal.

From the project

A daisy-chainable Smartport hard drive for the Apple II

In this directory are the Kicad sources for the different PCBs. Variations exist: - -Angled: For a right-angle, PCB-type DB19F connector (otherwise, panel-mount (solder cups) connector required) - -THT: Through-hold PCB. Will require an Arduino and SD module - *-SMD: SMD PCB with the Atmega328p integrated, and the microSD where applicable

PCBs families: - BurgerDisk: The simpler PCB, with more enclosures options (Full or micro SD) - Mini: Everything integrated, for the Mini enclosure - Domino: Everything integrated, as small as possible. - (micro)SD-module: the card readers for the BurgerDisk

Main components on the Mini-SMD

PC817C-SATmega328P-AUSE5218TXB0104PWR

Mini-SMD bill of materials (BOM)

28 components, 22 distinct parts.

QtyPartRefs
1
PC817C-S
U1
1
ATmega328P-AU
U2
1
SE5218
U3
1
TXB0104PWR
U4
1
Resonator_GND2
Y1
1
Daisy port out
J1
2
2-pin header
J2, J6
1
ICSP_ISP6
J3
1
Daisy port in
J4
1
Ext. MicroSD module
J5
1
HYC77-TF09-200
K1
1
1N4448WS
D1
1
1N5818WS
D2
1
LED
D3
3
100n
C1, C3, C4
2
2u2
C2, C5
1
22uf
C6
3
10k
R1, R3, R5
1
470
R2
1
1k
R4
Show 2 more
QtyPartRefs
1
330
R6
1
150
R7

Mini-SMD design files

The KiCad project lives in the colinleroy/BurgerDisk repository on GitHub; these links point at the commit this page was built from.

Mini-SMD: common questions

What microcontroller does the Mini-SMD use?

The Mini-SMD is built around the ATmega328P-AU, from the AVR/Arduino family.

How big is the Mini-SMD PCB?

The Mini-SMD measures 65.1 × 97 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mini-SMD?

28 components, from 22 distinct parts. The full bill of materials is listed on this page.

Where can I download the Mini-SMD design files?

From the colinleroy/BurgerDisk repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Mini-SMD design in my own project?

Yes, under the terms of its MIT license, which colinleroy chose for the repository.

Can I test firmware for the Mini-SMD 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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