Arduino Pro Micro Schematic Pdf. However i clearly noticed that my pro micro clone even being 5v 16mhz resonator has the j1 jumper open and there s a 5v regulator not 3 3v marked as s8pl. The power source is selected automatically.
In gnd out en bp 1 2 3 4 5 6 7 8 9 10 11 1 12 2 3 4 5 6 7 8 9 10 11 12 reset 13 aref 42 avcc 24 avcc 44 d 4 d 3 gnd 15 gnd 23 gnd 35 gnd 43 pb0 ss 8 pb1 sck 9 pb2. The power source is selected automatically. Schematic reference design eagle files.
External non usb power can come either from a dc power supply or battery.
Arduino port adc pwm serial ext interrupt pc interrupt misc pd5 power raw. Using the arduino pro mini 3 3v sparkfun wish list arduino pro mini 328 3 3v 8mhz dev 11114 9 95 48 favorited favorite 72 wish list for the scope of this tutorial we ll go over how to set up and use the3 3v arduino pro mini everything from assembling the tiny arduino to programming it. Looking at the spark fun schematic the arduino pro micro can have either a 5v or 3 3v voltage regulator on it the jumper can just bypass that onboard 3 3v regulator. However i clearly noticed that my pro micro clone even being 5v 16mhz resonator has the j1 jumper open and there s a 5v regulator not 3 3v marked as s8pl.
