Leonardo

Leo, the Arduino Leonardo clone done in KiCad.

https://rheingoldheavy.com/arduino-from-scratch-part-5-selecting-comparator-parts/

Bill Of Materials

• 1 ea., Perfect Purple PCB from OSH Park, with not so perfect layout from kicad.pcb file.

• 1 ea., U1 IC REG LINEAR 3.3V 150MA SOT23-5, LP2985-33DBVRG4, https://www.digikey.com/short/j29pqr

• 1 ea., U2 IC OPAMP GP 1MHZ RRO 8VSSOP, LM358DGKR, https://www.digikey.com/short/jnd53r

• 1 ea., U3 IC REG LINEAR 5V 1A SOT223 NCP1117ST50T3G, https://www.digikey.com/short/j29pqc

• 1 ea., U4 ATMEGA32U4-AU, IC MCU 8BIT 32KB FLASH 44TQFP, https://www.digikey.com/short/jb25pc

• 1 ea., Q1 MOSFET P-CH 20V 2A SSOT3, FDN340P, https://www.digikey.com/short/j29ppj

• 1 ea., Y1 CER RES 16.0000MHZ 15PF SMD, CSTCE16M0V53-R0, https://www.digikey.com/short/j2b9cm

• 2 ea., C1, C5 CAP CER 1UF SMD 0805

• 1 ea., C2 CAP CER 22pF SMD 0805

• 2 ea., C3, C6, C7 CAP CER 10UF 25V 1206, https://www.digikey.com/short/j29pwm

• 1 ea., C4 CAP CER 0.1UF SMD 0805

• 4 ea., D1-D4 SMD LED 0805, https://www.digikey.com/short/jwj4rb

• 1 ea., F1 PTC 1206, Bel 0ZCJ0025AF2E, https://www.digikey.com/short/jfcbc8

• 2 ea., RV1, RV2 VARISTOR VARISTOR 10.8V 40A 0805, https://www.digikey.com/short/jwj45d

• 4 ea., R1-R4 Resistor 1K OHM SMD 0805, https://www.digikey.com/short/j2d0wt

• 2 ea., R5, R8 Resistor 10K OHM SMD 0805, https://www.digikey.com/short/j2d0w4

• 2 ea., R6, R7 Resistor 22 OHM SMD 0805, https://www.digikey.com/short/jwj45j

• 1 ea., R9 Resistor 1M OHM SMD 0603,

• 1 ea., SW1 (yellow) SWITCH TACTILE SPST-NO 0.05A 12V, SW416-ND, https://www.digikey.com/short/jwj4m9

• or (purple) KSEM31J LFS https://www.digikey.com/short/jnqh3m

• 1 ea., X3, CONN RCPT MICRO USB R/A SMD, Molex 1050170001, https://www.digikey.com/short/jb2205

• 1 ea., J1 Barrel Jack, https://www.digikey.com/short/j2fz43

• 1 ea., 6-Pin header, https://www.digikey.com/short/jwj4w4

• 2 ea., 8-Pin header, https://www.digikey.com/short/jwj4dp

• 1 ea., 10-Pin header, https://www.digikey.com/short/jwj4n7

• 1 ea., 2x3 Pin header, http://www.digikey.com/short/3m33n0

License

Attribution-ShareAlike 3.0 United States (CC BY-SA 3.0 US)

You are free to:

• Share — copy and redistribute the material in any medium or format
• Adapt — remix, transform, and build upon the material

Under the following terms:

• Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
• ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.