попробовал сделать так. массив этот побайтно скормить в serial. Вот так:

for (int i=0; i <= 87; i++)
{
Serial.print(MyBuff[i]);
}

вылезло вообще что-то непонятное.

In file included from C:\arduino-0011\hardware\cores\arduino/WProgram.h:6,
from Spi.cpp:1:
c:/arduino-0011/hardware/tools/avr/bin/../avr/include/avr/signal.h:36:2: warning: #warning "This header file is obsolete. Use <avr/interrupt.h>."
C:\arduino-0011\hardware\cores\arduino/WProgram.h:14: error: default argument given for parameter 3 of 'long unsigned int pulseIn(uint8_t, uint8_t, long unsigned int)'
C:\arduino-0011\hardware\cores\arduino/WProgram.h:14: error: after previous specification in 'long unsigned int pulseIn(uint8_t, uint8_t, long unsigned int)'
C:\arduino-0011\hardware\cores\arduino/WProgram.h:14: error: default argument given for parameter 3 of 'long unsigned int pulseIn(uint8_t, uint8_t, long unsigned int)'


C:\arduino-0011\hardware\cores\arduino/WProgram.h:14: error: after previous specification in 'long unsigned int pulseIn(uint8_t, uint8_t, long unsigned int)'


Couldn't determine program size: C:\arduino-0011\hardware/tools/avr/bin/avr-size: 'C:\DOCUME~1\anc\LOCALS~1\Temp\build16430.tmp\SPI_ test.hex': No such file