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ErgoSNM right

siderakb·ergo-snm-keyboard·ErgoSNM_Keyboard/rev2/right/ErgoSNM_right.kicad_pcb

ErgoSNM right PCB layout, top view — open source RP2040/RP2350 board by siderakb
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About the ErgoSNM right PCB

ErgoSNM right is an open source RP2040/RP2350 PCB design by siderakb, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 115.6 × 106.7 mm, with 101 components from 24 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the RT9013-33GB, SRV05-4 and W25Q128JVS. By type, the board carries 29 diodes, 16 capacitors, 10 resistors, 5 connectors, 4 ICs and 2 jumpers.

It belongs with the keyboards, iot & wireless and wearables designs in this gallery.

From the project

ErgoSNM is a split ergonomic keyboard integrated with trackball, wireless is in beta

ErgoSNM \- a split ergonomic keyboard integrated with a trackball, designed to encourage people to leave their mouse behind.

- 64 keys in total. - Left half 29 + 6 keys. - Right half 29 keys + trackball. - Cherry MX style switches, hot-swap available. - USB Type-C. - Column-staggered layout. - The trackball can replace all mouse operations, allowing your right hand to stay on the home row. - Cursor movement and scrolling. - With the Combos feature: - J+K performs the left click - K+L performs the right click - J+L performs the middle click.

ErgoSNM right, from the project README
From the project README

Main components on the ErgoSNM right

RT9013-33GBSRV05-4W25Q128JVSRP2040

ErgoSNM right bill of materials (BOM)

101 components, 24 distinct parts.

QtyPartRefs
1
RT9013-33GB
U1
1
SRV05-4
U2
1
W25Q128JVS
U3
1
RP2040
U4
1
12MHz
Y1
2
USB_C_Receptacle_USB2.0
J1, J2
1
PJ-393_TRRS_8P
J3
1
Conn_01x08
J4
1
Conn_01x02
J5
1
500mA, 6V
F1
2
SolderJumper_2_Open
JP1, JP2
29
SW_Push_45deg
KEY1, KEY2, KEY3, KEY4, KEY5, KEY6, KEY7, KEY8 +21
1
BOOT
SW1
1
RESET
SW2
1
Red
LD1
1
LED
LD2
29
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +21
4
1uF
C1, C2, C8, C16
10
100nF
C3, C6, C7, C9, C10, C11, C12, C13 +2
2
20pF
C4, C5
Show 4 more
QtyPartRefs
3
5.1k
R1, R2, R4
3
1k
R3, R7, R9
2
27
R5, R6
2
10k
R8, R10

ErgoSNM right design files

The KiCad project lives in the siderakb/ergo-snm-keyboard repository on GitHub; these links point at the commit this page was built from.

ErgoSNM right: common questions

What microcontroller does the ErgoSNM right use?

The ErgoSNM right is built around the RP2040, from the RP2040/RP2350 family.

How big is the ErgoSNM right PCB?

The ErgoSNM right measures 115.6 × 106.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ErgoSNM right?

101 components, from 24 distinct parts. The full bill of materials is listed on this page.

Where can I download the ErgoSNM right design files?

From the siderakb/ergo-snm-keyboard repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the ErgoSNM right design in my own project?

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

Can I test firmware for the ErgoSNM right without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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