I have a humidity sensor gy21. After informational reading about the sensor itself, I’ve noticed “solutions” with the same sensor. There are various “wiring” options for the sensor.
I have the one that has some SMD parts I do not know how to search in order to know what are they for.
662K is voltage regulator. But what are the other two?
8 pin: 103
6 pin: 702
Is there any general rule how to decipher smd components markings other than capacitors or resistors?