HardLabs

Password

limpkin·mooltipass·kicad/standard/limpkin_design_v1_v2/password.kicad_pcb

Password PCB layout, top view — open source AVR/Arduino board by limpkin

About the Password PCB

Password is an open source AVR/Arduino PCB design by limpkin, published on GitHub. It is a 2-layer board measuring 52.1 × 30.1 mm, with 54 components from 28 distinct parts.

Its main chip is the ATMEGA32U4_QFN, from the AVR/Arduino family. Other key parts include the CON_FPC_30, CON_SMARTC, IP4234CZ6,125, ST662ACD and AT45DB011D. By type, the board carries 27 capacitors, 10 resistors, 6 ICs, 3 transistors, 3 connectors and 2 inductors.

From the project

Github repository dedicated to the mooltipass project

Mooltipass Project Repository ============================= This is the GitHub repository dedicated to the Mooltipass device family. It contains all the resources that were used and made for this community driven product line since the project was first started back in December 2013. The Mooltipass Mini device is available for purchase on our Tindie store.

What is the Mooltipass Project? ------------------------------- With time, logins and passwords have become critical elements we need to remember to access the different websites and services we use daily. If we want to achieve good…

Password, from the project README
From the project README

Main components on the Password

CON_FPC_30CON_SMARTCIP4234CZ6,125ATMEGA32U4_QFNST662ACDAT45DB011D

Password bill of materials (BOM)

54 components, 28 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
CON_FPC_30
U1
1
CON_SMARTC
U2
1
IP4234CZ6,125
U3
1
ATMEGA32U4_QFN
U4
1
ST662ACD
U5
1
AT45DB011D
U6
2
MOS_P
Q1, Q3
1
MOS_N
Q2
1
16MHz
X1
1
AVR-ISP-6
CON1
1
USB-MICRO-B2
CON2
1
CONN_4
P1
1
SW_PUSH
SW1
1
DIODE
D1
2
FILTER
FB1, FB2
2
10uF
C1, C12
4
4.7uF
C2, C10, C20, C28
13
100nF
C4, C5, C8, C11, C13, C14, C15, C16 +5
3
1uF
C7, C19, C21
1
4.7uF / 25V
C9
Show 8 more
QtyPartRefs
2
220nF
C23, C27
2
18pF
C24, C26
1
620k
R2
1
50
R3
4
10k
R4, R5, R10, R11
1
2k2
R6
1
4k7
R7
2
22
R8, R9

Password design files

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

Password: common questions

What microcontroller does the Password use?

The Password is built around the ATMEGA32U4_QFN, from the AVR/Arduino family.

How big is the Password PCB?

The Password measures 52.1 × 30.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Password?

54 components, from 28 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 Password design files?

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

Can I use the Password design in my own project?

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

Can I test firmware for the Password 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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