HardLabs

MicroArd

KhazAkar·MicroArd

MicroArd PCB layout, top view — open source AVR/Arduino board by KhazAkar

About the MicroArd PCB

MicroArd is an open source AVR/Arduino PCB design by KhazAkar, published on GitHub. It is a board measuring 39.6 × 53.1 mm, with 37 components from 23 distinct parts.

Its main chip is the ATtiny406_VQFN, from the AVR/Arduino family. Other key parts include the AP1117-33 and FT230XQ. By type, the board carries 15 capacitors, 8 resistors, 5 connectors, 4 diodes, 3 ICs and 1 jumper.

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

From the project

[MOVED to GitLab: https://gitlab.com//r3xxar/MicroArd]

Main components on the MicroArd

AP1117-33FT230XQATtiny406_VQFN

MicroArd bill of materials (BOM)

37 components, 23 distinct parts.

QtyPartRefs
1
AP1117-33
U1
1
FT230XQ
U2
1
ATtiny406_VQFN
U3
1
USB Type C
J1
1
VCC voltage selection
J2
1
Ext. power
J3
1
GPIO Pins
J4
1
FT230XQ Ext.
J5
1
3V3 enable
JP1
1
Reset
SW1
1
USBLC6-2SC6
D1
2
SS16HE
D2, D3
1
LED
D4
3
4u7
C1, C4, C12
7
100n
C2, C6, C9, C11, C13, C14, C15
3
10n
C3, C8, C10
2
47p
C5, C7
2
5k1
R1, R2
2
27R
R3, R4
1
4k7
R5
Show 3 more
QtyPartRefs
1
0R
R6
1
270R
R7
1
330R
R8

MicroArd design files

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

MicroArd: common questions

What microcontroller does the MicroArd use?

The MicroArd is built around the ATtiny406_VQFN, from the AVR/Arduino family.

How big is the MicroArd PCB?

The MicroArd measures 39.6 × 53.1 mm and is 1 mm thick.

How many components are on the MicroArd?

37 components, from 23 distinct parts. The full bill of materials is listed on this page.

Where can I download the MicroArd design files?

From the KhazAkar/MicroArd repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the MicroArd design in my own project?

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

Can I test firmware for the MicroArd 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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