I just read here PiGlow | Wiring Pi
that if you have pi2 that you have to use i2cdetect -q -y 1 rather than 0 to detect if its there…so i just ran it with the added q and got this
pi@raspberrypi ~ $ i2cdetect -q -y 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: – – – – – – – – – – – – –
10: – – – – – – – – – – – – – – – –
20: – – – – – – – – – – – – – – – –
30: – – – – – – – – – – – – – – – –
40: – – – – – – – – – – – – – – – –
50: – – – – 54 – – – – – – – – – – –
60: – – – – – – – – – – – – – – – –
70: – – – – – – – –
does the 54 mean the piglow is being detected ?
some other bits ive been reading