I'm looking at ordering gas sensors the EVAL-CN0429-EBZ. The BOM parts list doesn't seem to be consistent with the photos online. All the photos of the PCB have gold inserts mounted on the board for the gas sensor to allow for easy insertion and removal. I cannot find these parts listed on the BOM, instead there seems to be two different options;
I think the BOM is for a SPEC SENSOR 110-102?
You are correct, looks like the incorrect files were loaded up. I will have this fixed hopefully in the next day or two. But I have attached the correct zip file here for you.
Thanks for bringing…
I seem to be getting random numbers for the sensor reading. It can be anywhere from -26 to 209ppm.
I am using a CO sensor 75nA/ppm
Rload - 10Ohm
Rtia= 12k, 1000 ppm range
Vbias = 0V
Can you explain what startmeas and stopmeas is used for? Neither seem to effect the results. Also when I readrcal the value returned is 121 ohm. This seems way off. The sensor has been powered on over the weekend so it has had lots of time to settle. Can you please let me know if I am doing anything wrong or I am missing a step?