HardLabs

Bipolar led matrix

arkonique·handheld_led·circuits/bipolar_led_matrix/bipolar_led_matrix.kicad_pcb

Bipolar led matrix PCB layout, top view — open source AVR/Arduino board by arkonique

About the Bipolar led matrix PCB

Bipolar led matrix is an open source AVR/Arduino PCB design by arkonique, published on GitHub. It is a 2-layer board measuring 156.4 × 80 mm, with 224 components from 14 distinct parts.

Its main chip is the ATMEGA328P-PU, from the AVR/Arduino family. By type, the board carries 171 diodes, 43 resistors, 8 capacitors, 1 IC and 1 connector.

It belongs with the displays & leds designs in this gallery.

Main components on the Bipolar led matrix

ATMEGA328P-PU

Bipolar led matrix bill of materials (BOM)

224 components, 14 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA328P-PU
IS31FL3741A
U1
1
Conn_01x10_Pin
J1
171
LED_Dual_KAK
D1, D2, D3, D4, D5, D6, D7, D8 +163
1
100UF
0.1uF
C1
3
1uF
C2, C4, C6
3
0.1uF
C3, C5, C7
1
10uF
C8
18
51R
R1, R3, R7, R9, R11, R13, R15, R17 +10
18
20R
R2, R4, R8, R10, R12, R14, R16, R18 +10
1
15K
51R
R5
1
15K
20R
R6
2
100kR
R39, R42
1
10kR
R40
2
2kR
R41, R43

Bipolar led matrix design files

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

Bipolar led matrix: common questions

What microcontroller does the Bipolar led matrix use?

The Bipolar led matrix is built around the ATMEGA328P-PU, from the AVR/Arduino family.

How big is the Bipolar led matrix PCB?

The Bipolar led matrix measures 156.4 × 80 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bipolar led matrix?

224 components, from 14 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 Bipolar led matrix design files?

From the arkonique/handheld_led 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 Bipolar led matrix design in my own project?

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

Can I test firmware for the Bipolar led matrix 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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