Okay had to ... File->Sketchbook->Digital->Blink menu ==>> File->Examples->0.1 Basics->Blink ... is this the correct code for the T-4.0? What should it be mod'd to to test?
rPi build? ... nm ... smacks head Ras Pi ..
Looking for a SPI example with interrupts. ... ? Does one exist in the Arduino package from T-4?