freedomtruth
Junior Member level 2
Hi friends
I'm going to use humirel HS1101 capacitive humidity sensor in my incubator project and to attain highest accuracy it can give.
I decided to use 555 circuitry recommended in **broken link removed**. The problem is that this circuit is sensitive to 555's manufacturer.
I couldn’t find one of those 555s listed in datasheet but I bought a 7555 from NXP.
Now my question is what does " internal temperature compensation" mean and what are values for R1 and R2 for my 555?
(Here is a part of the datasheet about 555 circuitry)
thanks in advance
I'm going to use humirel HS1101 capacitive humidity sensor in my incubator project and to attain highest accuracy it can give.
I decided to use 555 circuitry recommended in **broken link removed**. The problem is that this circuit is sensitive to 555's manufacturer.
I couldn’t find one of those 555s listed in datasheet but I bought a 7555 from NXP.
Now my question is what does " internal temperature compensation" mean and what are values for R1 and R2 for my 555?
(Here is a part of the datasheet about 555 circuitry)
thanks in advance