Rev. 0 - Initial Design

README.md

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+# Goldfish
+The goldfish is a Pro Micro compatible microcontroller designed for use in Mechanical Keyboards, although it is perfectly suited for any hobby electronics project.
+It is based on the same ATMega32U4 IC as regular Pro Micros so can be programmed with the Arduino IDE, or keyboard firmwares like TMK, QMK, etc.
+
+## Advantages
+* Through-hole USB connector breaks much less easily
+* Mid-mounted USB connector makes the board a lot thinner
+* Super cool reversible USB-C connector
+* Pin-compatible with Pro Micros
+* Five extra pins available along the bottom edge of the board for larger hand-wired builds
+* USB data lines are easily accessible through two internal pins
+
+## Disadvantages
+* Fewer custom cable options compared to USB Mini-B/Micro-B
+* More expensive (depends on quantity ordered though)
+* No onboard voltage regulator (won't make a difference for keyboards, can be an issue for other electronics projects)
+
+## Repo Contents
+**/cad** - KiCad source files
+**/doc** - Schematics, Documentation and Data Sheets (when I create them)
+
+## License Information
+Released under the Creative Commons Attribution Share-Alike 4.0 License
+https://creativecommons.org/licenses/by-sa/4.0/
+
+Original Arduino Mini Design by Team Arduino
+Arduino Pro Mini Design by Spark Fun Electronics
+Pro Micro Design by Spark Fun Electronics
+Goldfish Design by Dr Derivative
+
+## Changes
+**Rev. 0** - Initial Design
+

cad/atmega32u4-ep.lib

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+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# ATMEGA32U4-EP
+#
+DEF ATMEGA32U4-EP U 0 40 Y Y 1 F N
+F0 "U" -950 1700 50 H V C CNN
+F1 "ATMEGA32U4-EP" 700 -1500 50 H V C CNN
+F2 "QFN44" 0 0 50 H I C CIN
+F3 "" 1100 1100 50 H I C CNN
+$FPLIST
+ QFN44
+$ENDFPLIST
+DRAW
+S -1000 1650 950 -1450 0 1 10 f
+X (INT6/AIN0)PE6 1 1100 -650 150 L 40 40 1 1 B
+X UVCC 2 -450 1800 150 D 40 40 1 1 W
+X D- 3 -1150 100 150 R 40 40 1 1 B
+X D+ 4 -1150 200 150 R 40 40 1 1 B
+X UGND 5 -400 -1600 150 U 40 40 1 1 P
+X UCAP 6 -1150 -50 150 R 40 40 1 1 P
+X VBUS 7 -1150 350 150 R 40 40 1 1 P
+X (SS/PCINT0)PB0 8 1100 1550 150 L 40 40 1 1 B
+X (SCLK/PCINT1)PB1 9 1100 1450 150 L 40 40 1 1 B
+X (PDI/MOSI/PCINT2)PB2 10 1100 1350 150 L 40 40 1 1 B
+X (RXD/INT2)PD2 20 1100 150 150 L 40 40 1 1 B
+X (ADC13/OC1B/OC4B/PCINT13)PB6 30 1100 950 150 L 40 40 1 1 B
+X (ADC1)PF1 40 1100 -950 150 L 40 40 1 1 B
+X (PDO/MISO/PCINT3)PB3 11 1100 1250 150 L 40 40 1 1 B
+X (TXD/INT3)PD3 21 1100 50 150 L 40 40 1 1 B
+X (OC3A/~OC4A~)PC6 31 1100 650 150 L 40 40 1 1 B
+X (ADC0)PF0 41 1100 -850 150 L 40 40 1 1 B
+X (OC0A/OC1C/~RTS~/PCINT7)PB7 12 1100 850 150 L 40 40 1 1 B
+X (XCK1/~CTS~)PD5 22 1100 -150 150 L 40 40 1 1 B
+X (ICP3/CLK0/OC4A)PC7 32 1100 550 150 L 40 40 1 1 B
+X AREF 42 -1150 -850 150 R 40 40 1 1 P
+X ~RESET~ 13 -1150 1550 150 R 40 40 1 1 I
+X GND 23 -50 -1600 150 U 40 40 1 1 W
+X (~HWB~)PE2 33 1100 -550 150 L 40 40 1 1 B
+X GND 43 150 -1600 150 U 40 40 1 1 W
+X VCC 14 -200 1800 150 D 40 40 1 1 W
+X AVCC 24 150 1800 150 D 40 40 1 1 W
+X VCC 34 -100 1800 150 D 40 40 1 1 W
+X AVCC 44 250 1800 150 D 40 40 1 1 W
+X GND 15 -150 -1600 150 U 40 40 1 1 W
+X (ICP2/ADC8)PD4 25 1100 -50 150 L 40 40 1 1 B
+X GND 35 50 -1600 150 U 40 40 1 1 W
+X PAD 45 -650 -1600 150 U 40 40 1 1 I
+X XTAL2 16 -1150 950 150 R 40 40 1 1 O
+X (T1/~OC4D~/ADC9)PD6 26 1100 -250 150 L 40 40 1 1 B
+X (ADC7/TDI)PF7 36 1100 -1350 150 L 40 40 1 1 B
+X XTAL1 17 -1150 1150 150 R 40 40 1 1 I
+X (T0/OC4D/ADC10)PD7 27 1100 -350 150 L 40 40 1 1 B
+X (ADC6/TDO)PF6 37 1100 -1250 150 L 40 40 1 1 B
+X (OC0B/SCL/INT0)PD0 18 1100 350 150 L 40 40 1 1 B
+X (ADC11/PCINT4)PB4 28 1100 1150 150 L 40 40 1 1 B
+X (ADC5/TMS)PF5 38 1100 -1150 150 L 40 40 1 1 B
+X (SDA/INT1)PD1 19 1100 250 150 L 40 40 1 1 B
+X (ADC12/OC1A/~OC4B~/PCINT12)PB5 29 1100 1050 150 L 40 40 1 1 B
+X (ADC4/TCK)PF4 39 1100 -1050 150 L 40 40 1 1 B
+ENDDRAW
+ENDDEF
+#
+#End Library