I'm attempting to hook up the MLX90614 Infrared Thermometer Module sold by parallax to the Arduino Uno but the sensor's serial pin is outputting no data eg. -1 when casted as a int.
I've attempted to follow the instructions from: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1241012329
with absolutely no success. I copy and paste the raw code changing absolutely nothing and have triple checked my wiring to the sensor and everything matches up with what the data sheet says but still no output. I think my sensor is failing the PEC test but as far as i can tell their is no way to test this theory. Also i've tried using multiple digital pins on my Arduino so im 99.99% sure that the problem is not the digital pins on my Arduino. Lastly i checked the sensors analog I2C signal pin connected to the PIC chip on the module and found a signal at a very fast baud rate followed shortly after by the serial pin signal coming from the module.