I read that too, but the lifetime-rule confused me. I thought, that rule is OK for that Sensor, but it is just an example. I power on the Sensor for 15 sec now. Thats the minimum timing for my setup. The Sensor values are OK. I compare them with an Airquality-sensor (AppliedSensor) which detects VOC...

PMS5003 - almost same. My setup is exactly the same as in the wiki. Gpios pulled with 10k resistors, 47yF buffering 5V Lifetime-helper rule working. (Replaced longpulse with timer - cause there is an issue.) Problem: When the Sensor gets actived by timer, it lasts at least 15sec. to get the values. ...

Well, why don't you just add a thin filter? A foil, or a Glas - something that dims the sun a little little bit. The sensor-value / curve is only a bit lower then, but you still can see your curve. And a potentially overexposure is corrected. In my cases such adjustments do work - i only need to kno...