HardLabs

MSS-Crossover-Tiny

dabridgham·MSS-Crossover-Tiny

MSS-Crossover-Tiny PCB layout, top view — open source AVR/Arduino board by dabridgham

About the MSS-Crossover-Tiny PCB

MSS-Crossover-Tiny is an open source AVR/Arduino PCB design by dabridgham, published on GitHub. It is a 2-layer board measuring 68.8 × 48.6 mm, with 19 components from 14 distinct parts.

Its main chip is the ATtiny25-20SSU, from the AVR/Arduino family. Other key parts include the TLP187, AMS1117-3.3 and INA180A1IDBVR. By type, the board carries 6 capacitors, 5 ICs, 5 resistors, 2 diodes and 1 switch.

From the project

An MSS Crossover Node

Main components on the MSS-Crossover-Tiny

TLP187AMS1117-3.3ATtiny25-20SSUINA180A1IDBVR

MSS-Crossover-Tiny bill of materials (BOM)

19 components, 14 distinct parts.

QtyPartRefs
2
TLP187
U1, U4
1
AMS1117-3.3
U2
1
ATtiny25-20SSU
ATtiny25-20SS
U3
1
INA180A1IDBVR
INA180A3
U5
1
KMR211NG LFS
Set
SW1
1
DF04S
D1
1
LTST-C170KRKT
red
D2
1
EEV107M035A9HAA
100µF
C1
1
CL21B334KBFNNNE
.33µF
C2
1
22 µF
C4
3
CL21B104KBCNNNC
100nF
C5, C6, C7
3
RC0805FR-102K2L
2.2k
R2, R4, R7
1
RC0805FR-104K7L
4.7k
R5
1
CRA2512-FZ-R100ELF
0.1Ω
R8

MSS-Crossover-Tiny design files

The KiCad project lives in the dabridgham/MSS-Crossover-Tiny repository on GitHub; these links point at the commit this page was built from.

MSS-Crossover-Tiny: common questions

What microcontroller does the MSS-Crossover-Tiny use?

The MSS-Crossover-Tiny is built around the ATtiny25-20SSU, from the AVR/Arduino family.

How big is the MSS-Crossover-Tiny PCB?

The MSS-Crossover-Tiny measures 68.8 × 48.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MSS-Crossover-Tiny?

19 components, from 14 distinct parts. The full bill of materials is listed on this page.

Where can I download the MSS-Crossover-Tiny design files?

From the dabridgham/MSS-Crossover-Tiny repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the MSS-Crossover-Tiny design in my own project?

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

Can I test firmware for the MSS-Crossover-Tiny 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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