DHT sketch version 2.0.0 error [solved]
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@bisschopsr ah, that one. That's a bit hard to fix, unfortunately.
I don't think the MySensors project should modify it, since it belongs to the DHT library. The DHT library readme suggests that you use the latest version of the library, available from their github repository. That is expected.
But the latest version of the DHT library has some changes. It is for example missing the public function the MySensors example is using, as you noticed, which breaks the example. That's why MySensorsArduinoExamples includes the required libraries, which "correct" versions.
The right way to use MySensorsArduinoExamples is to download the MySensorsArduinoExamples zip file from https://github.com/mysensors/MySensorsArduinoExamples. That zip file includes all libraries, so there is no need to fetch them from somewhere else.
Dependency management is messy, unfortunately.
@mfalkvidd I agree, it's always difficult if your solution depends on external libraries. However if we use a modified version of DHT in our MySensors, we should not call it DTH, but something like MyDHT. That makes it specific for MySensors. Currently the risk is that a DHT library is in the library directory that is not standard, other sketches (non MySensors) might break on it.
I did download the full set you suggested already and applied it. The error is now gone. Now for me to sort out why radio's are not communicating, but that is off topic...
Ralph
Domoticz, P1 meter interface, MySensors and more to come!
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@mfalkvidd I agree, it's always difficult if your solution depends on external libraries. However if we use a modified version of DHT in our MySensors, we should not call it DTH, but something like MyDHT. That makes it specific for MySensors. Currently the risk is that a DHT library is in the library directory that is not standard, other sketches (non MySensors) might break on it.
I did download the full set you suggested already and applied it. The error is now gone. Now for me to sort out why radio's are not communicating, but that is off topic...
Ralph
@bisschopsr MySensors does not use a modified version of DHT. MySensors is using an old version, since the new version isn't compatible (they have removed at least one public function).
Edit: I was wrong. MySensors have made a private function public, without upstreaming the change.
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@bisschopsr MySensors does not use a modified version of DHT. MySensors is using an old version, since the new version isn't compatible (they have removed at least one public function).
Edit: I was wrong. MySensors have made a private function public, without upstreaming the change.
@mfalkvidd Aha clear, but the mismatch stays the same, isn't it? Anyway lets close this thread, DHT is running now, so I'm happy :-).
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@mfalkvidd Aha clear, but the mismatch stays the same, isn't it? Anyway lets close this thread, DHT is running now, so I'm happy :-).
@bisschopsr
hi , i have some problem . i download https://github.com/mysensors/MySensorsArduinoExamples/tree/master/libraries/DHT and install this but there is error in line : dht.readsensor(true); -
@bisschopsr
hi , i have some problem . i download https://github.com/mysensors/MySensorsArduinoExamples/tree/master/libraries/DHT and install this but there is error in line : dht.readsensor(true);@Reza Hi Reza, sorry for the little delay in replying. Anyway, read the response of @mfalkvidd 4 steps up. He gives the link for the correct library. If that does not work, there might be another problem with your libraries. Did you check if you really are using the correct one. Sometimes the old one is persistent, so you think you have the correct one, but in practice you don't. Compare the one you have downloaded with the one in your IDE to be sure.
Ralph
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@Reza Hi Reza, sorry for the little delay in replying. Anyway, read the response of @mfalkvidd 4 steps up. He gives the link for the correct library. If that does not work, there might be another problem with your libraries. Did you check if you really are using the correct one. Sometimes the old one is persistent, so you think you have the correct one, but in practice you don't. Compare the one you have downloaded with the one in your IDE to be sure.
Ralph
@bisschopsr said:
Hi Reza, sorry for the little delay in replying. Anyway, read the response of @mfalkvidd 4 steps up. He gives the link for the correct library. If that does not work, there might be another problem with your libraries. Did you check if you really are using the correct one. Sometimes the old one is persistent, so you think you have the correct one, but in practice you don't. Compare the one you have downloaded with the one in your IDE to be sure.
thank you for answer , but this is dont solve for me :(
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@bisschopsr said:
Hi Reza, sorry for the little delay in replying. Anyway, read the response of @mfalkvidd 4 steps up. He gives the link for the correct library. If that does not work, there might be another problem with your libraries. Did you check if you really are using the correct one. Sometimes the old one is persistent, so you think you have the correct one, but in practice you don't. Compare the one you have downloaded with the one in your IDE to be sure.
thank you for answer , but this is dont solve for me :(
@Reza Ok, and you did check the library compiled with your sketch is the correct one? the error is exactly the same as I had, so it really looks like you are using a different library. This is a tricky thing, so please check. What IDE are you using?
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@Reza Ok, and you did check the library compiled with your sketch is the correct one? the error is exactly the same as I had, so it really looks like you are using a different library. This is a tricky thing, so please check. What IDE are you using?
@bisschopsr
arduino 1.6.8 -
Hi @bisschopsr
I got this error when i'm using this lib
Any Idea. I'm using IDE 1.6.12. new install and Installed Mysensor through the Manage library. My sensor is working (updated my gw and other sensors, but can't upgrade my DHT sensors.
Thanx for your help
