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SB Pixel Count

computergeek1507·SB_Pixel_Count·V2 Lite/PCB/SB_Pixel_Count.kicad_pcb

SB Pixel Count PCB layout, top view — open source AVR/Arduino board by computergeek1507
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About the SB Pixel Count PCB

SB Pixel Count is an open source AVR/Arduino PCB design by computergeek1507, published on GitHub. It is a 2-layer board measuring 53.5 × 26.5 mm, with 18 components from 13 distinct parts.

Its main chip is the ATtiny1614-SS, from the AVR/Arduino family. Other key parts include the 74AHCT1G125W5-7, LM1117MPX-50NOPB and INA219BIDR. By type, the board carries 6 capacitors, 5 ICs, 5 resistors, 1 switch and 1 diode.

It belongs with the wearables designs in this gallery.

From the project

SB Pixel Counter

This documentation describes Open Hardware and is licensed under the CERN Open Hardware License Version 2 - Strongly Reciprocal. (CERN-OHL-S)

You may redistribute and modify this documentation under the terms of the CERN OHL-S-v2 (https://ohwr.org/cernohls_v2.txt). This documentation is distributed WITHOUT ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING OF MERCHANTABILITY, SATISFACTORY QUALITY AND FITNESS FOR A PARTICULAR PURPOSE. Please see the CERN OHL v2-S for applicable conditions

SB Pixel Count, from the project README
From the project README

Main components on the SB Pixel Count

74AHCT1G125W5-7LM1117MPX-50NOPBINA219BIDRATtiny1614-SS

SB Pixel Count bill of materials (BOM)

18 components, 13 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
74AHCT1G125W5-7
74AHCT1G125
U1
1
LM1117MPX-50NOPB
AP2112K-3.3
U2
1
LM1117MPX-50NOPB
AMS1117-5.0
U3
1
INA219BIDR
INA219BxD
U4
1
ATtiny1614-SS
U6
1
PTS645SL43SMTR92 LFS
Test
SW1
1
3v3
D1
3
CL10B104KO8NNNC
0.1uF
C1, C5, C6
3
GRM21BR61E106KA73L
10uF
C2, C3, C4
1
RC0603JR-0733RL
33ohm
R1
1
CSRN2512FTR100
0.1 OHM 2W
R2
2
RC0603FR-0710KL
10K
R3, R4
1
330
R5

SB Pixel Count design files

The KiCad project lives in the computergeek1507/SB_Pixel_Count repository on GitHub; these links point at the commit this page was built from.

SB Pixel Count: common questions

What microcontroller does the SB Pixel Count use?

The SB Pixel Count is built around the ATtiny1614-SS, from the AVR/Arduino family.

How big is the SB Pixel Count PCB?

The SB Pixel Count measures 53.5 × 26.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the SB Pixel Count?

18 components, from 13 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 SB Pixel Count design files?

From the computergeek1507/SB_Pixel_Count 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 SB Pixel Count design in my own project?

The repository has no license, so all rights stay with computergeek1507. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the SB Pixel Count 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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