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Paper-Leonardo


An other Arduino clone!

The Paper-Leonardo is the only Paperduino Clone with USB on Board and extra ISP pins. But unfortunaltely cause its chip is an Atmega32U4 and that is only as SMD part availible one has to solder SMD.

Here is a manual for SMD soldering\\.

Front:

Back:


Paper-PCBs

Paper-leonardo_v10


Schematic


Components

  • Atmega32U4
  • 4 lowcurrent LEDs
  • voltage converter 78M05
  • crystal 16MHz
  • 2 elkos 100µF
  • 1 elko 10µF
  • 5 capacitors 100nF
  • 1 capacitor 1µF
  • 2 capacitors 22pF
  • Z-Diode 3.6V
  • diode 1N4007
  • resistors: 4x 2.2kOhm, 2x 1kOhm, 2x 10kOhm, 2x 22Ohm
  • poly fuse 500mA
  • coil 10µH
  • reset button
  • headers
  • jumper
  • USB socket