HardLabs

Hexagon

kieraneglin·hexagon-art·Schematic/hexagon/hexagon.kicad_pcb

Hexagon PCB layout, top view — open source AVR/Arduino board by kieraneglin

About the Hexagon PCB

Hexagon is an open source AVR/Arduino PCB design by kieraneglin, published on GitHub under the MIT license. It is a 2-layer board measuring 56.9 × 23.6 mm, with 20 components from 16 distinct parts.

Its main chip is the ATtiny1616-MN, from the AVR/Arduino family. Other key parts include the TPL7407LAQPWRQ1. By type, the board carries 6 connectors, 5 capacitors, 4 resistors, 2 ICs and 2 diodes.

From the project

Per-unit board: one ATtiny1616, a motor driver for the 28BYJ-48, and an optical endstop. Firmware lives at ../../Firmware/hexagons/, which documents the full pin map and communication protocol; this covers the hardware side only.

Per-unit board: one ATtiny1616, a motor driver for the 28BYJ-48, and an optical endstop. Firmware lives at ../../Firmware/hexagons/, which documents the full pin map and communication protocol; this covers the hardware side only.

Not on this board: the 28BYJ-48 motor itself, which connects via J4.

BOM.csv in this directory is the raw KiCad-generated export; it collapses several unrelated connectors and the MCU into a single row with no part number, which is why the table above is organized per reference instead.

Main components on the Hexagon

TPL7407LAQPWRQ1ATtiny1616-MN

Hexagon bill of materials (BOM)

20 components, 16 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TPL7407LAQPWRQ1
TPL7407
U2
1
ATtiny1616-MN
U3
1
JST IN
J1
1
JST OUT
J2
1
Motor JST
J4
1
GPIO Breakout
J5
1
PROGRAMMING BREAKOUT
J6
1
INPUT BREAKOUT
J7
1
LTH-301-07
PI1
1
PMEG2010ER,115
D_Schottky
D1
1
5988110107F
STATUS LED
D2
3
CL21B104KACNNNC
100 nF
C1, C3, C5
1
GRM21BR61E106KA73L
10 uF
C2
1
UCM1E221MCL1GS
220 uF
C4
3
RC0805FR-07220RL
220
R2, R3, R6
1
RC0805FR-074K7L
4.7k
R4

Hexagon design files

The KiCad project lives in the kieraneglin/hexagon-art repository on GitHub; these links point at the commit this page was built from.

Hexagon: common questions

What microcontroller does the Hexagon use?

The Hexagon is built around the ATtiny1616-MN, from the AVR/Arduino family.

How big is the Hexagon PCB?

The Hexagon measures 56.9 × 23.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Hexagon?

20 components, from 16 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 Hexagon design files?

From the kieraneglin/hexagon-art 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 Hexagon design in my own project?

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

Can I test firmware for the Hexagon 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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