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readme.md

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 Feegle PCB Top

Gerber: top.zip

PCB Thickness: 1mm

Top Convertible Feegle PCB Top convertible

Gerber: top_convertible.zip

PCB Thickness: 0.8mm

Top Grill Feegle PCB Top grill

Gerber: top_grill.zip

PCB Thickness: 1mm

Top Aluminum Feegle PCB Top single sided

Gerber: top_single.zip

PCB Thickness: 1mm

Bottom

Feegle PCB Bottom

Gerber: bottom.zip

PCB Thickness: 1mm

Bottom Aluminum

Feegle PCB Bottom single sided

Gerber: bottom_single.zip

PCB Thickness: 1mm

PCB mini USB

Feegle PCB

Gerber: feegle_xs.zip

PCB Thickness: 1.2mm

PCB USB C

Feegle C PCB

Gerber: feegle_xsc.zip

PCB Thickness: 1.2mm

Spacer

Feegle spacer

Gerber: spacer.zip

PCB Thickness: 0.8mm

Gerber files released under https://creativecommons.org/licenses/by-sa/4.0/

Creative Commons Attribution-ShareAlike 4.0 International License

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

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.

How to order your own PCBs