| .. | ||
| bottom_single.png | ||
| bottom_single.zip | ||
| bottom.png | ||
| bottom.zip | ||
| Digikey - feegle xsc.xlsx | ||
| feegle_xs.png | ||
| feegle_xs.zip | ||
| feegle_xsc.png | ||
| feegle_xsc.zip | ||
| readme.md | ||
| spacer.png | ||
| spacer.zip | ||
| top_convertible.png | ||
| top_convertible.zip | ||
| top_grill.png | ||
| top_grill.zip | ||
| top_single.png | ||
| top_single.zip | ||
| top.png | ||
| top.zip | ||
Feegle XS Keyboard
More Information https://www.40percent.club/2020/11/feegle-xs.html
====================== Feegle XS keyboard. 12x4 matrix.
TMK Firmware https://git.40percent.club/di0ib/tmk_keyboard/src/branch/master/keyboard/feegle
Bootloader same as Aardvark https://git.40percent.club/di0ib/Misc/src/branch/master/aardvark/bootloader
More info about V-USB https://www.40percent.club/2020/08/the-aardvark.html
Top
Gerber: top.zip
PCB Thickness: 1mm
Top Convertible
Gerber: top_convertible.zip
PCB Thickness: 0.8mm
Top Grill
Gerber: top_grill.zip
PCB Thickness: 1mm
Top Aluminum
Gerber: top_single.zip
PCB Thickness: 1mm
Bottom
Gerber: bottom.zip
PCB Thickness: 1mm
Bottom Aluminum
Gerber: bottom_single.zip
PCB Thickness: 1mm
PCB mini USB
Gerber: feegle_xs.zip
PCB Thickness: 1.2mm
PCB USB C
Gerber: feegle_xsc.zip
PCB Thickness: 1.2mm
Spacer
Gerber: spacer.zip
PCB Thickness: 0.8mm
Gerber files released under https://creativecommons.org/licenses/by-sa/4.0/
Pinout
col: B0 B1 B2 C0 C1 C2 C3 C4 C5 D0 D1 B4
row: D6 D5 D3 B3
BOM mini USB
1 ATmega328p or ATmega328 28pin DIP
48 4.5x4.5 6-7mm tall tactile switches
1 4.5x4.5 5mm tall tactile switch (bootloader)
1 16MHz subminiature crystal ECS-160-20-46X
2 20pf capacitors 0.1" lead spacing, 4mm max height
1 1uf capacitor 0.1" lead spacing, 4mm max height
2 68ohm resistors. Smaller 1/8 or 1/10 watt
1 1.5Kohm resistor. Smaller 1/8 or 1/10 watt
1 PICO Fuse 0251.125MXL https://www.digikey.com/short/27hmbw0b
1 10uf capacitor 4mm diameter RNU1A100MDS1
1 Mini USB connector with 2 mounting lugs. 2 lugs can be trimmed off 4 lug versions.
2 T1 3mm Blue/White/Green/UV 3-3.3Vfd LEDs. Not all Green LEDs are 3V. Most Blue/White/UV are.
4 4mm M2 brass spacers
4 4mm M3 aluminum unthreaded spacers R30-6200414 (optional)
4 3mm M2 screws for top
4 5mm M2 screws for bottom
4 Steel or Brass 0.3mm thick washers
1 ISP programmer for initial bootloader flashing.
BOM USB C
same as XS with the addition of the 5.1k resistors and the USB C connector instead of mini USB.
1 ATmega328p or ATmega328 28pin DIP
48 4.5x4.5 6-7mm tall tactile switches
1 4.5x4.5 5mm tall tactile switch (bootloader)
1 16MHz subminiature crystal ECS-160-20-46X
2 20pf capacitors 0.1" lead spacing, 4mm max height
1 1uf capacitor 0.1" lead spacing, 4mm max height
2 68ohm resistors. Smaller 1/8 or 1/10 watt
2 5.1Kohm resistor. Smaller 1/8 or 1/10 watt
1 1.5Kohm resistor. Smaller 1/8 or 1/10 watt
1 PICO Fuse 0251.125MXL https://www.digikey.com/short/27hmbw0b
1 10uf capacitor 4mm diameter RNU1A100MDS1
1 USB C connector CU3216SASBLR004-NH https://www.digikey.com/short/4mpbjd7j
2 T1 3mm Blue/White/Green/UV 3-3.3Vfd LEDs. Not all Green LEDs are 3V. Most Blue/White/UV are.
4 4mm M2 brass spacers
4 4mm M3 aluminum unthreaded spacers R30-6200414 (optional)
4 3mm M2 screws for top
4 5mm M2 screws for bottom
4 Steel or Brass 0.3mm thick washers
1 ISP programmer for initial bootloader flashing.
Digikey - feegle xsc.xlsx
This list contains all the components from Digikey for the xsc. There are two different weight switches and an alternate USB C connector.
The only parts missing are the 4mm brass spacers and screws. These can be sourced from Amazon or eBay.