HardLabs

TinyStep

sebastiangrus·TinyStep

TinyStep PCB layout, top view — open source AVR/Arduino board by sebastiangrus

About the TinyStep PCB

TinyStep is an open source AVR/Arduino PCB design by sebastiangrus, published on GitHub. It is a 2-layer board measuring 26 × 54 mm, with 19 components from 15 distinct parts.

Its main chip is the ATTINY204-SS, from the AVR/Arduino family. Other key parts include the AP63205WU. By type, the board carries 6 capacitors, 5 connectors, 4 resistors, 2 ICs, 1 module and 1 inductor.

Main components on the TinyStep

ATTINY204-SSAP63205WU

TinyStep bill of materials (BOM)

19 components, 15 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATTINY204-SS
ATtiny204-SS
U1
1
AP63205WU
U2
1
~
A2
1
CONN_01X03_PIN
Conn_01x03_Pin
J1
1
CONN_01X04_PIN
Conn_01x04_Pin
J2
1
Barrel_Jack_Switch
J3
1
CONN_02X05_ODD_EVEN
Conn_02x04_Odd_Even
J4
1
CONN_02X02_ODD_EVEN
Conn_02x02_Odd_Even
J5
1
4.7UH
4.7uH
L1
2
100NF
100nF
C1, C4
1
47uF 50V
C2
1
10UF
10uF
C3
2
22UF
22uF
C5, C6
3
10K
10k
R1, R2, R3
1
1k
R4

TinyStep design files

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

TinyStep: common questions

What microcontroller does the TinyStep use?

The TinyStep is built around the ATTINY204-SS, from the AVR/Arduino family.

How big is the TinyStep PCB?

The TinyStep measures 26 × 54 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the TinyStep?

19 components, from 15 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 TinyStep design files?

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

Can I use the TinyStep design in my own project?

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

Can I test firmware for the TinyStep 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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