HardLabs

MechaTrellis-4x4

okyeron·MechaTrellis-4x4-PCB

MechaTrellis-4x4 PCB layout, top view — open source Microchip SAM board by okyeron

About the MechaTrellis-4x4 PCB

MechaTrellis-4x4 is an open source Microchip SAM PCB design by okyeron, published on GitHub under the Custom license license. It is a 2-layer board measuring 76.2 × 76.2 mm, with 89 components from 15 distinct parts.

Its main chip is the ATSAMD09D14A-MU, from the Microchip SAM family. Other key parts include the AP2112-3.3. By type, the board carries 22 capacitors, 16 relays, 16 LEDs, 16 diodes, 5 resistors and 4 jumpers.

From the project

PCB files for the MechaTrellis 4x4 keypad PCB. Format is Kicad 8.0 schematic and board layout

PCB files for the MechaTrellis 4x4 keypad PCB. Format is Kicad 8.0 schematic and board layout

MechaTellis is an Adaptation/Remix of the Adafruit NeoTrellis RGB Driver PCB.

MechaTellis was designed by Steven Noreyko/denki-oto. Original NeoTrellis design by Limor Fried/Ladyada for Adafruit Industries.

These run the same NeoTrellis seesaw I2C chip and are fully software compatible with the NeoTrellis boards and projects.

Main components on the MechaTrellis-4x4

ATSAMD09D14A-MUAP2112-3.3

MechaTrellis-4x4 bill of materials (BOM)

89 components, 15 distinct parts.

QtyPartRefs
1
ATSAMD09D14A-MU
IC2
1
AP2112-3.3
U2
2
BSS138
Q1, Q2
1
SM04B-SRSS-TB
STEMMA_I2C_RASMT
X2
1
SM03B-SRSS-TB(LFSN)
SM03B-SRSS-TB
J11
3
SMTSO-M25-2ET
SMTSO-M25-2ET - 5mm
H11, H12, H13
4
HEADER-1X5EDGESMT
JP1, JP2, JP3, JP4
16
ChocMX
K01, K02, K03, K04, K05, K06, K07, K08 +8
1
SOLDERJUMPER_2WAY
SJ4
16
SK6812MINIE
LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +8
16
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +8
5
10µF
C1, C2, C3, C4, C8
1
1µF
C7
16
100n
C11, C12, C13, C14, C15, C16, C17, C18 +8
5
10K
R4, R5, R6, R7, R8

MechaTrellis-4x4 design files

The KiCad project lives in the okyeron/MechaTrellis-4x4-PCB repository on GitHub; these links point at the commit this page was built from.

MechaTrellis-4x4: common questions

What microcontroller does the MechaTrellis-4x4 use?

The MechaTrellis-4x4 is built around the ATSAMD09D14A-MU, from the Microchip SAM family.

How big is the MechaTrellis-4x4 PCB?

The MechaTrellis-4x4 measures 76.2 × 76.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MechaTrellis-4x4?

89 components, from 15 distinct parts. The full bill of materials is listed on this page.

Where can I download the MechaTrellis-4x4 design files?

From the okyeron/MechaTrellis-4x4-PCB repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the MechaTrellis-4x4 design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

Can I test firmware for the MechaTrellis-4x4 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Microchip SAM firmware against it before you order a PCB.

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