ADPD188 Smoke Detection Configuration Not Responding to Smoke

If you compare your setup to the CN0583 setup.  What are the differences?  Are you using a chamber?  If the PTR is too high due to a large reflected signal you will not see any change due to smoke.  The chamber keeps the signal low. 

I suspect however that the problem is that the part is not specifically configured for the smoke application. 

Here is a gitbub example for the CN0583 setup https://github.com/analogdevicesinc/no-OS/tree/cn0583/projects/cn0583 This is much more involved than just hte ADPD188BI driver itself.  The ADPD188 driver library is just the starting point for talking to the ADPD188 itself.  One would then need to load a configuration file that is specific to smoke.  I suspect that this is what is missing.  If you download the wave-tool from the ADPD188BI evaluation page, you will get a set of configuration files with this.  The one you want is "ADPD188BIZ_EVAL_default_r120519.dcfg".  You can use the list of registers here to configure the part.  However I recommend using the full setup from the CN0583 github page as this also pull the output calibration factors from the part.