Temp sensor and Alternate power source

Thanks Koepel, I missed your post but was looking into this on my searches.

I put a 10K resistor on each pin (SDA/SCL) but it didn't change my outcome. I tied the TFT and TMP117 wires together with the 10K and SCL/SDA but I'm not sure I did it right. The web said to just tie everything (all components using I2c) with there respective pins(SDA or SCL) and attach a 10K resistor. I wasn't sure if I needed to cut the onboard pullup on the TMP117 so I left it alone but looking at your sink current equation it shouldn't have bothered it.

I will switch how the TMP117 is wired with GND and 3.3V coming from the Due.