HardLabs

Endeavour-2-backup

ScatteredDrifter·Endeavour·rev2/pcb/Endeavour-2-backup.kicad_pcb

Endeavour-2-backup PCB layout, top view — open source AVR/Arduino board by ScatteredDrifter

About the Endeavour-2-backup PCB

Endeavour-2-backup is an open source AVR/Arduino PCB design by ScatteredDrifter, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 190.5 × 84 mm, with 94 components from 15 distinct parts.

Its main chip is the ATMEGA32U2-A, from the AVR/Arduino family. Other key parts include the SRV05-4. By type, the board carries 38 relays, 38 diodes, 6 capacitors, 6 resistors, 2 ICs and 1 crystal.

It belongs with the keyboards designs in this gallery.

From the project

An 38 key orthogonal Keyboard with 3d printable case

An orthogonal 10u keyboard heavily inspired by kbelmos QEZ

Used License for this project :: Cern Open Hardware by Evelyn~ Scattered Drifter

- rev3 tested, minor issues fixed in - firmware for QMK was updated to newest version, can be found here - ZMK firmware pending - rev3 case available - yet I dislike it in its current state.

I tried creating a circular positioning pattern for the components where their center is set with the mcu itself. Due to reposition of every component I rerouted the whole board again; also because Endeavour V¹ was one of my first designs and you can tell it was. A…

Endeavour-2-backup, from the project README
From the project README

Main components on the Endeavour-2-backup

ATMEGA32U2-ASRV05-4

Endeavour-2-backup bill of materials (BOM)

94 components, 15 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA32U2-A
ATmega32U2-A
U1
1
SRV05-4
U2
1
CRYSTAL_GND24_SMALL
Crystal_GND24_Small
Y1
1
USB_C_RECEPTACLE_USB2.0
USB_C_Receptacle_USB2.0
J1
1
C69688
Polyfuse_Small
F1
38
KEYSW
K0, K1, K2, K3, K4, K5, K6, K7 +30
1
SW_PUSH
SW1
38
1N4448
D0, D1, D2, D3, D4, D5, D6, D7 +30
1
1UF
1uF
C1
2
22PF
22pF
C2, C3
2
0.1UF
0.1uF
C4, C6
1
10UF
10uF
C5
2
22
R1, R2
2
10K
10k
R3, R6
2
C27834
5,1k
R4, R5

Endeavour-2-backup design files

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

Endeavour-2-backup: common questions

What microcontroller does the Endeavour-2-backup use?

The Endeavour-2-backup is built around the ATMEGA32U2-A, from the AVR/Arduino family.

How big is the Endeavour-2-backup PCB?

The Endeavour-2-backup measures 190.5 × 84 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Endeavour-2-backup?

94 components, from 15 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 Endeavour-2-backup design files?

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

Can I use the Endeavour-2-backup design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which ScatteredDrifter chose for the repository.

Can I test firmware for the Endeavour-2-backup 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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