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lewapek / sds-dust-sensors-arduino-library

Library for Nova Fitness SDS dust sensors family (SDS011, SDS021)
MIT License
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Incompatibility with SD.h #16

Closed tjiagoM closed 3 years ago

tjiagoM commented 5 years ago

Hello,

Thanks for your repository, I was able to use it to read from my sensor.

I wanted to save those readings to the microSD card attached to Arduino. However, by just including in the code #include <SD.h>, the Arduino simply doesn't work anymore (I cannot even read anything from the Serial, I'm guessing that's because setup() is executed). The constructor I'm using for the sensor is SdsDustSensor sds(10, 11);

Can you give any help trying to debug this, please? I'm guessing some part is shared across these 2 libraries... Have you ever had this problem? How do you usually save the readings from the sensor?

Thanks.

lewapek commented 5 years ago

Hi, maybe some other part of code also uses SoftwareSerial and messes up the data on it. Maybe try using other pins than 10,11. I've never used SD.h with this library - I usually send http requests to another devices.

tjiagoM commented 5 years ago

Thanks, I've tried other pins than 10/11 and it didn't work either. It really seems like they both use the same things in a way that is not compatible... And it was just by calling the SdsDustSensor constructor :/

I've tried to look to both source codes but I'm very recent to Arduino so I don't have a lot of experience. It's a pity you never used SD.h, do you have any other recommendation for me to try to find a solution?

I have to say though it would be nice if your tool would be compatible with Arduino's SD library :D

Thanks anyway!

lewapek commented 5 years ago

I'm guessing a little bit but maybe it is connected with #14 - if the same change is made to Arduino's SoftwaresSerial If so you can try using older version of SD.h explicitly (which may use compatible SoftwareSerial)

If you overcome the difficulties with SD.h and the problem will be connected with this library, I'd be glad if you open merge request

lewapek commented 5 years ago

I've checked a moment ago and it seems that Arduino's SoftwareSerial didn't change. However there may be other incompatibilities, so trying different SD.h versions can hopefully bring us closer to the solution.

Elspider commented 5 months ago

Same problem I am using an Arduino Uno. The serial monitor print the data of the SDS011 until i just import SD.h Then It start printing nothing, even without any function of the SD libary. I have used the 1.0 version of SD, i tried to rename the directory and the file in the library to solve ambiguity but i couldn't fix the problem. Btw: i don't know if It can't help, but when i got errore during the coding there was a couple of time a warning like more than one library named SD even After renaming this library .h file

lewapek commented 5 months ago

hmm - looks like some incompatibility as mentioned in the discussion above
you can try use the library from the sources and remove all occurrences / usages of SoftwareSerial - maybe than helps