I might have asked this before.
I have used a few dht11 temp and humid sensors with single wire protocol.
Both the '11 and the '22 are shown in the datasheets as being the same protocol, just that the '11 only ever replies with zero's after the decimal point, whereas the '22 does reply with tenths.
Obviously theres a messup either in the devices or the datasheet which is cryptic, the fact that you can get a library for the arduino that reads both devices, but has seperate subroutine labels for each suggests theres a diffrence.
Has anyone any knowledge of the diffrences?, I'm guessing its timing.
I have used a few dht11 temp and humid sensors with single wire protocol.
Both the '11 and the '22 are shown in the datasheets as being the same protocol, just that the '11 only ever replies with zero's after the decimal point, whereas the '22 does reply with tenths.
Obviously theres a messup either in the devices or the datasheet which is cryptic, the fact that you can get a library for the arduino that reads both devices, but has seperate subroutine labels for each suggests theres a diffrence.
Has anyone any knowledge of the diffrences?, I'm guessing its timing.