MLX90614 Infrared Thermometer Module Parallax

Forum 2005-2010 (read only) Hardware Interfacing
1

Hi All,

I have a MLX90614 Infrared Thermometer Module from Parallax.
In order to communicate with this device, I have to send and receive serial data on the same I/O pin. Is this possible with an Arduino Diecimila?

2

That might be totally wrong now.. but i dont think you can do this as you have on the arduino one TX and one RX Pin.. yet, you might be able to either make use of a Softserial Library or try to connect that one wire thing into two pins..

3

Yes, it is certainly possible. It's a bit of a pain to get the timing right, but all you do is change from input to putput at the appropriate times.

Would the signal name happen to be SDA? SDA and SCL are common names for the I2C data and clock lines. The I2C data line is bidirectional.

-j