HardLabs

260321

McbeEringi·pcb-stuff·paneled/260321/260321.kicad_pcb

260321 PCB layout, top view — open source AVR/Arduino board by McbeEringi

About the 260321 PCB

260321 is an open source AVR/Arduino PCB design by McbeEringi, published on GitHub under the MIT license. It is a 2-layer board measuring 48 × 73 mm, with 66 components from 41 distinct parts.

Its main chip is the ATtiny1604-SS, from the AVR/Arduino family. Other key parts include the CH340E, TPS56124x, CH221K, AQM0802A-RN-GBW and BQ25172. By type, the board carries 19 resistors, 16 capacitors, 9 diodes, 8 ICs, 4 switches and 3 connectors.

Main components on the 260321

CH340ETPS56124xCH221KATtiny1604-SSAQM0802A-RN-GBWBQ25172TPS613222ADBVPAM8406D

260321 bill of materials (BOM)

66 components, 41 distinct parts.

QtyPartRefs
1
CH340E
U1
1
TPS56124x
U2
1
CH221K
U3
1
ATtiny1604-SS
U4
1
AQM0802A-RN-GBW
U5
1
BQ25172
U6
1
TPS613222ADBV
U7
1
PAM8406D
U8
1
AO3401A
Q1
1
USB
J1
1
NiMh*2
J2
1
OUT1
J3
1
Buzzer
BZ1
1
CHG
JP1
1
BATT
JP2
1
R_FB
RV1
1
SW
SW1
3
SW_Push
SW2, SW3, SW4
1
TNOW
D1
7
WS2812B-2020
D2, D4, D5, D6, D7, D8, D9
Show 21 more
QtyPartRefs
1
STAT
D3
1
2u2
L1
1
4u7
L2
2
0u1
C1, C5
3
1u
C2, C9, C10
1
10u
C3
3
4u7
C4, C8, C11
2
22u
C6, C16
1
47u
C7
1
1u-PWR0
C12
1
1u-PAM8406
C13
1
1u-PWR1
C14
1
1u-VREF
C15
2
5k1
R1, R2
2
4k7
R3, R4
1
100k
R5
1
470R
R6
2
56k
R7, R8
7
10k
R9, R12, R13, R14, R17, R18, R19
2
NC(1k)
R10, R11
2
47k
R15, R16

260321 design files

The KiCad project lives in the McbeEringi/pcb-stuff repository on GitHub; these links point at the commit this page was built from.

260321: common questions

What microcontroller does the 260321 use?

The 260321 is built around the ATtiny1604-SS, from the AVR/Arduino family.

How big is the 260321 PCB?

The 260321 measures 48 × 73 mm, has 2 copper layers and is 1 mm thick.

How many components are on the 260321?

66 components, from 41 distinct parts. The full bill of materials is listed on this page.

Where can I download the 260321 design files?

From the McbeEringi/pcb-stuff repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the 260321 design in my own project?

Yes, under the terms of its MIT license, which McbeEringi chose for the repository.

Can I test firmware for the 260321 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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