HardLabs

ErgoSNM Keyboard Right Prototype 1

siderakb·ergo-snm-keyboard·ErgoSNM_Keyboard/prototype/right_prototype_1/ErgoSNM_Keyboard_Right_Prototype_1.kicad_pcb

ErgoSNM Keyboard Right Prototype 1 PCB layout, top view — open source Nordic nRF board by siderakb

About the ErgoSNM Keyboard Right Prototype 1 PCB

ErgoSNM Keyboard Right Prototype 1 is an open source Nordic nRF PCB design by siderakb, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 141 × 88 mm, with 66 components from 41 distinct parts.

Its main chip is the nRF51822_Core_board, from the Nordic nRF family. Other key parts include the TP4057 and AMS1117-3.3V. By type, the board carries 25 diodes, 4 connectors, 4 capacitors, 2 ICs, 2 resistors and 1 module.

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 Keyboard Right Prototype 1, from the project README
From the project README

Main components on the ErgoSNM Keyboard Right Prototype 1

TP4057AMS1117-3.3V

ErgoSNM Keyboard Right Prototype 1 bill of materials (BOM)

66 components, 41 distinct parts.

QtyPartRefs
1
TP4057
U1
1
AMS1117-3.3V
U2
1
nRF51822_Core_board
M1
1
Conn_01x05
J1
1
Conn_01x02
J2
1
Conn_01x02
J3
1
Conn_01x06
J4
1
Jumper_2_Bridged
JP1
1
00
KEY1
1
01
KEY2
1
02
KEY3
1
03
KEY4
1
04
KEY5
1
05
KEY6
1
10
KEY7
1
11
KEY8
1
12
KEY9
1
13
KEY10
1
14
KEY11
1
15
KEY12
Show 21 more
QtyPartRefs
1
20
KEY13
1
21
KEY14
1
22
KEY15
1
23
KEY16
1
24
KEY17
1
25
KEY18
1
30
KEY19
1
31
KEY20
1
32
KEY21
1
33
KEY22
1
34
KEY23
1
35
KEY24
1
SW_2P3T
SW1
1
Conn_01x04
SWD1
1
PJ-393_TRRS_8P
TRRS1
24
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +16
1
1N5819
D25
3
10uF
C1, C3, C4
1
1uF
C2
1
4.7k
R1
1
10k
R2

ErgoSNM Keyboard Right Prototype 1 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 Keyboard Right Prototype 1: common questions

What microcontroller does the ErgoSNM Keyboard Right Prototype 1 use?

The ErgoSNM Keyboard Right Prototype 1 is built around the nRF51822_Core_board, from the Nordic nRF family.

How big is the ErgoSNM Keyboard Right Prototype 1 PCB?

The ErgoSNM Keyboard Right Prototype 1 measures 141 × 88 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ErgoSNM Keyboard Right Prototype 1?

66 components, from 41 distinct parts. The full bill of materials is listed on this page.

Where can I download the ErgoSNM Keyboard Right Prototype 1 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 Keyboard Right Prototype 1 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 Keyboard Right Prototype 1 without the hardware?

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

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