Im trying to use an Arduino with a TLC59108 and I endTransmission keeps returning a 2, meaning no Acknowledgment. I have tried sending my hardware address as well as the Call All Address, non of them will give me an ACK back. Is something off with the timing possibly? #include <Wire.h> void setup(…

I2C TLC59108 NACK

nickgammon November 2, 2012, 8:42pm 2

Wire.beginTransmission(0x90);  //CALLADDR

The highest valid address is 119 (0x77). You need to shift your address right one (eg. 0x48).

Try running the I2C scanner on this page to confirm the device is correctly connected:

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