Hello World works!
// Two Wire (aka I2C) ports
uint8_t const SDA_PIN = 23; // C1 23
uint8_t const SCL_PIN = 22; // C0 22
// SPI port
uint8_t const SS_PIN = 10; // physical 5, D 10 SS
uint8_t const MOSI_PIN = 11; // physical 6, D 11 MOSI
uint8_t const MISO_PIN = 12; // physical 7, D 12 MISO
uint8_t const SCK_PIN = 13; // physical 8, D 13 SCK
Thanks very much for all the help 
Going to try some of the other example now...
