2 layers143.3 × 116.6 mm
2 layers111.8 × 79 mm
Lets split
l4u/lets-split-pcb-hs-cherryLet's Split PCB for holtite socket only Cherry MX switches
- Size
- 111.8 × 79 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 63
- Nets
- 44
- Pads
- 581
- Tracks, vias
- 1,069, 37
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 25 Mar 2018
- Updated
- 3 May 2018
Overview
Lets split is an open-source printed circuit board by l4u, from the l4u/lets-split-pcb-hs-cherry repository on GitHub, published under the MIT licence. It is a 2-layer board of 111.8 × 79 mm with 63 parts on 44 nets, routed with 1,069 tracks and 37 vias.
Its parts include 24 diodes, 24 switches, 5 ICs, 5 connectors and 2 resistors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
README
README.mdlets-split-pcb-hs-cherry
Let's Split PCB for holtite socket only Cherry MX switches.
Based on climbalima/let-s-Split-v2.
Overview
By crimping the socket to the through hole, it is possible to install without having to solder the axis of the switch and Pro Micro.
Cherry MX switch and several clone switches are available.
ALPS/Matias switch is NOT AVAILABLE.
Supported socket
How to order PCB
There is a releases page that zipped the Gerber file. You can use it to order to your preferred merchant.
I ordered it for PCBGOGO and confirmed that I could manufacture it.
How to crimp the socket
See youtube video.
Points to note when crimping
IMPORTANT! Since Pro Micro will be inserted from the bottom of the PCB, the switch will be inserted from the top of the PCB, so be careful of the orientation of the PCB when crimping the socket.
Pro Micro
You can crimp the socket only to the through hole of the pin to be used. You can NOT crimp the socket into the through hole of the unused pin.
Rev 1.1.0 or higher
Up to rev 1.0.1
It is not possible to crimp the socket to the through hole where the socket is not stuck in the picture.
Switches
Be careful not to mistake the position of the through hole.
IMPORTANT NOTE
- I have not confirmed the operation of some functions. Refer to the Confirmed list for details.
- With PCB revision 1.1.0 or higher, the board size has been changed. If you want to use the original case of Let's Split Be careful.
Parts
63| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | D | local:Diode_TH_SOD123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +8 |
| 24 | SW_PUSH | local:MX-ALPs-PG1350-FLIP | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +8 |
| 4 | HOLE | local:HOLE | U2, U3, U4, U5 |
| 2 | 3PIN | local:SMD_JUMPER_2 | J1, J3 |
| 2 | 3PIN | local:CON3_SMD_BOTH | J4, J5 |
| 2 | 4K7 | local:RESISTOR | R1, R2 |
| 1 | 6PIN | footprint:4pin35mmAudio | J2 |
| 1 | ProMicro | local:ProMicro | U1 |
| 1 | SW_PUSH | local:TACTILE_COMPATIBLE | RSW1 |
| 1 | TEST | local:JUMPER_SMD_2DUB | W1 |
| 1 | TEST_1P | Wire_Pads:SolderWirePad_single_2mmDrill | W2 |
Questions
How big is the Lets split PCB?
It measures 111.8 × 79 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Lets split use?
63 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Lets split KiCad files?
From the l4u/lets-split-pcb-hs-cherry repository on GitHub, at the commit this page was made from: the board is lets_split.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Lets split design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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