HardLabs

Microsd append

thebiguno·microcontroller-projects·projects/microsd/microsd-append.kicad_pcb

Microsd append PCB layout, top view — open source AVR/Arduino board by thebiguno
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About the Microsd append PCB

Microsd append is an open source AVR/Arduino PCB design by thebiguno, published on GitHub. It is a 2-layer board measuring 49.4 × 34.2 mm, with 32 components from 19 distinct parts.

Its main chip is the ATMEGA32U4-A, from the AVR/Arduino family. By type, the board carries 8 connectors, 8 resistors, 5 capacitors, 2 switches, 2 diodes and 1 IC.

From the project

A home for a bunch of microcontroller projects which don't warrant their own repos.

microcontroller-projects ========================

A home for my microcontroller projects, including Stubby the Hexapod and others. It includes libraries for avr-gcc along with sample programs on how to use them, some KiCad modules, and the source code for a number of projects.

Some major projects include: Stubby the Hexapod (http://stubby.digitalcave.ca/stubby/) (Now extracted into its own repo at https://github.com/thebiguno/stubby) DrumMaster (http://drummaster.digitalcave.ca/drummaster/) * Chiindii (http://chiindii.digitalcave.ca/chiindii/)

Main components on the Microsd append

ATMEGA32U4-A

Microsd append bill of materials (BOM)

32 components, 19 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA32U4-A
U1
1
RESONATOR
X1
1
USB-MINI-B
CON1
1
CONN_10X2
ISP
P1
6
CONN_5
P2, P3, P4, P5, P6, P7
1
P***
1PIN
1
Val**
PIN_ARRAY_4X1
2
SW_PUSH_SMALL
SW1, SW2
1
NCP1400A
VR1
1
VAL**
WJ10
1
DFLS130L
D1
1
RGB_LED_COMMON_ANODE
D2
1
22uH
L1
1
10uF
C1
1
47uF
C2
3
1uF
C3, C4, C5
1
10k
R1
2
22
R2, R3
5
1k
R4, R5, R6, R7, R8

Microsd append design files

The KiCad project lives in the thebiguno/microcontroller-projects repository on GitHub; these links point at the commit this page was built from.

Microsd append: common questions

What microcontroller does the Microsd append use?

The Microsd append is built around the ATMEGA32U4-A, from the AVR/Arduino family.

How big is the Microsd append PCB?

The Microsd append measures 49.4 × 34.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Microsd append?

32 components, from 19 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Microsd append design files?

From the thebiguno/microcontroller-projects repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Microsd append design in my own project?

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

Can I test firmware for the Microsd append 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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