Wednesday, June 19, 2013

SPI on Arduino Nano v3.0

IC Package: 32 pin MLF



Arduino
Pin #
ATMEL 328P
 (MLF) pin#
ATMEL 328P
(PDIP) pin#
Label Function
D10 14 16 PB2 SS*
D11 15 17 PB3 MOSI
D12 16 18 PB4 MISO
D13 17 19 PB5 SCK


The problem is, according to Arduino Nano schematic, pin 13 is connected to LED through 330 ohm resistor in series.
To be able to use SPI correctly, we need to disconnect the LED.

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