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The manta75

mymakercorner·the_manta75·Pcb/Kicad/Manta75.kicad_pcb

The manta75 PCB layout, top view — open source AVR/Arduino board by mymakercorner
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About the The manta75 PCB

The manta75 is an open source AVR/Arduino PCB design by mymakercorner, published on GitHub under the CC-BY-4.0 license. It is a 2-layer board measuring 312.3 × 138.8 mm, with 197 components from 22 distinct parts.

Its main chip is the C45874, from the AVR/Arduino family. By type, the board carries 95 switches, 86 diodes, 8 capacitors, 4 resistors, 1 IC and 1 crystal.

It belongs with the keyboards designs in this gallery.

From the project

The Manta75, a productivity focused 75% keyboard from 'The Sea Collection'

The Manta75 is an exploded arrows and nav clusters 75% keyboard with a curvy bottom. It is the second project of the Sea Collection and as such it's name is taken from one of the species we see in our oceans, the Manta ray.

The Satisfaction 75 have this similar exploded arrows/nav clusters, on the manta75 I went with no knob and screen to maximize the number of available keys.

The manta75, from the project README
From the project README

Main components on the The manta75

C45874

The manta75 bill of materials (BOM)

197 components, 22 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C45874
ATmega32U4-MU
U0
1
C13738
Crystal_16MHz
Y1
1
C160404
JST SH
J0
1
SW_Push
RST0
76
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +68
1
SW_Push
SW31
6
SW_Push
SW34, SW47, SW83, SW86, SW89, SW92
2
SW_Push
SW50, SW79
2
SW_Push
SW63, SW67
1
SW_Push
SW64
4
SW_Push
SW66, SW82, SW84, SW85
1
SW_Push
SW87
1
SW_Push
SW96
1
SW_Push
SW97
86
C81598
D_Small
D1, D2, D3, D4, D5, D6, D7, D8 +78
1
C19702
10uF
C0
4
C14663
0.1uF
C1, C2, C3, C4
1
C15849
1uF
C5
2
C1685
8.2pF
C6, C7
2
C23345
22
R0, R1
Show 2 more
QtyPartRefs
1
C25804
10K
R2
1
C21190
1K
R3

The manta75 design files

The KiCad project lives in the mymakercorner/the_manta75 repository on GitHub; these links point at the commit this page was built from.

The manta75: common questions

What microcontroller does the The manta75 use?

The The manta75 is built around the C45874, from the AVR/Arduino family.

How big is the The manta75 PCB?

The The manta75 measures 312.3 × 138.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the The manta75?

197 components, from 22 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 The manta75 design files?

From the mymakercorner/the_manta75 repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the The manta75 design in my own project?

Yes, under the terms of its CC-BY-4.0 license, which mymakercorner chose for the repository.

Can I test firmware for the The manta75 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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