BA
puntero34
a low profile pointer peripheral with 17 switches.
design principles
- compatible for seeed xiao ble, or pro micro form factor mcu board
- integrated pat9125el-pcb
- tiny stainless steel trackball on disc magnets mount
- 3d printed go-first
- case with lot of straight edges
gallery
bom
| unit | item |
|---|---|
| 2 | Seeed Studio XIAO BLE (nRF52840) |
| 2 | PAT9125EL-TKIT Sensor Breakout Board |
| 34 | Kailh PG1353 Choc v2 Switch |
| 34 | Kailh PG1350 Choc Switch Socket |
| 34 | 1N4148W T4 SOD-123 Diode |
| 2 | 4.75mm Steel Ball |
| 6 | Neodymium Disc Magnets 3x1mm (Diameter x Thick) |
| 2 | MSK-1153 6 Pins Power Switch |
| 12 | M2x6 Countersunk Socket Screw |
| 4 | M2x10 Countersunk Socket Screw |
| 2 | 601230 Lipo Battery (plus connector) |
| 1 | 30/28/26 AWG silicone wire |
| 8 | Anti slip silicone rubber adhesive pads |
building guide / tips
- NOT for beginner. Requiring experience of building at least one wireless keyboard on ZMK.
- ONLY left side STL files available, mirror in slicer of your choice for the right side, except
pat9125 bucket.stl, it used to be rotate 180 on right side. - PRINT trackball mount with 0.2 nozzle.
- WIRE key scan matrix gpios following
puntero34.dtsifile in firmware config on below.
firmware
the ZMK firmware config repository can be find at here.
license
available under the CERN-OHL-P v2 permissive license.