let be clear here the address doubt set in from the very link you submitted
https://www.waveshare.com/wiki/Infra...erature_Sensor

you are trying to tell me that i have a fake module.
i never said that at all, but yes i had picked up an old datasheet , i let your address go unchallenged so what's the issue here, it needed clarification.

all said and done since you are so reticent to post your code i was left with seeking a reason why the device did not respond as expected
to a seeming valid i2c transaction , a quick look on the web led to reasonable doubt that the device was as described.
i make no apology for that . i enjoy a challenge and was prepared to investigate adding a smbus request signal if warranted
it would have been interesting.

proof conclusive snippets are a waste of time , my case rests

oh yeah
a very very bad teacher or someone that could help in a forum.
its hard to soar with eagles when you are working with turkeys

i'm not going to spend a pile of time writing nice flowery prose and go about smoothing egos on a technical forum for simple issues

good luck with your endeavors i'm done