52 Hill52 Initial: copy from 56

hillside52/.gitignore

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+
+
+# Ignore gerbers.
+# We commit and then remove after each fabrication
+gerber_*/*.gbr
+gerber_*/*.gbrjob
+gerber_*/*.drl
+gerber_*/*.ps
+gerber_*/*.svg
+gerber_*/*.dxf
+gerber_*.zip

hillside52/README.md

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+# Hillside56
+
+Hillside56 is a split ergonomic keyboard with 3x6+5+5 choc-spaced keys.
+It has the aggressive stagger of the Ferris but
+  physical arrow clusters, a longer thumb arc
+  and break-off outer pinky columns.
+
+![Hillside56 keyboard](doc/image/hill56_photo_pair.png "Both halves")
+
+The arrow clusters provide a more familiar keymap for users new to small keyboards and for more seasoned users provide good encoder or extra key spots.
+
+Additional Features:
+- Tenting puck mount point
+- QMK and ZMK firmware
+- Nice!nano battery power switch and decoupling capacitor
+- One Encoder per side at either: upper or tucked thumb or two lowest ring
+- Haptic feedback header
+- Underglow from five SK6812-MINI-Es
+- Reversible 100 x 138mm PCB, which qualifies for AllPCB's free PCB offer
+- Detailed BOM and default keyboard rational.
+- SMT diodes, resistors, capacitors, and reset switch
+
+Hillside56 is _only_ suitable for choc v1 switches and keycaps based on an 18 x 17mm switch spacing, such as the MBK keycaps. Not MX ones, nor 18 x 18mm ones such as Work Louder.
+
+## Hardware
+
+See the [wiki](https://github.com/mmccoyd/hillside/wiki)
+  for how to order the PCB and build the board.
+The project files use KiCad 6.
+
+See [Forking and Modifying](https://github.com/mmccoyd/hillside/wiki/Forking%20and%20Modifying)
+  on whether it would be difficult to modify this design, for those that are interested.
+
+## Firmware
+
+QMK: a fork I need to push, which will become a PR
+
+<!---
+
+[Hillside58 fork](https://github.com/mmccoyd/qmk_firmware)
+to be pushed and added as PR to QMK.
+-->
+
+ZMK: TBD
+
+# Why
+
+A visually easy to use keyboard is useful. Either for people new to small keyboards or for a keyboard I pull from a dusty drawer a year from now. The physical arrow cluster of a 65% keyboard makes it more intuitive than a 60% keyboard, so adding an arrow T to a 40% board seemed a way to make using a 40% board more obvious.
+
+I find a few extra keys laying around lets me have multiple approaches to things. This allows me to choose between approaches gradually over time.
+Also, the extra keys fit within the existing Hillside48 footprint, the inner arrow might be a good thumb key, and the center arrow seems a good encoder spot.
+
+## Acknowledgments
+
+The awesome Low Profile Keyboards and splitkb.com discord communities provided a fertile learning ground for my keyboard explorations.
+
+## Images
+
+![Keymap](doc/image/hill56_keymap.png "PCB")
+
+<div style="background-color:#DCDCDC;">
+
+![Schematic](doc/image/hill56_schematic.svg "Schematic")
+</div>
+
+![pcb](doc/image/hill56_pcb.png "PCB")
+
+![render](doc/image/hill56_pcb_render.png "Front Render")
+
+<div style="background-color:#DCDCDC;">
+
+To test if the key layout suits your fingers,
+ print the below switch layout images in landscape mode.
+![switches](doc/image/hill56_switches_left.svg "Switch Layout Left")
+
+![switches](doc/image/hill56_switches_right.svg "Switch Layout Right")
+</div>

hillside52/fp-lib-table

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+(fp_lib_table
+  (lib (name hillside)(type KiCad)(uri ${KIPRJMOD}/../lib/hillside.pretty)(options "")(descr ""))
+  (lib (name hillside_basic)(type KiCad)(uri ${KIPRJMOD}/../lib/hillside_basic.pretty)(options "")(descr ""))
+)

hillside52/gerber_hillside52/README.md

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+Two files are included just for reference if helpful, not for putting into the PCB:
+
+- xxx-F_Fab.gbr to make explicit that there are internal cutouts in the edge.cuts
+  layer. It also includes some component markings, but the markings are just for reference
+  on screen, not for inclusion in the silk layer.
+
+- xxx-User_Eco2.gbr for some context if needed. The PCB is one half of a split keyboard
+  and those are the keycap locations.
+
+These PTH are mechanical not electrical:
+
+- 2.5mm x 1 on the right, for haptic board.
+- 2.2mm x 8 in the center and sides, for a tenting puck and case mount
+- 1.7mm x 4 in the bottom, for key switches that are also rotary encoder mounts.
+   It is close to a the ground PTH for the rotary encoder, so it got converted to a PTH.
+   Some joining of the two is fine.