Error unknown typ name 'DS18B20'

AlexKrammer · 8 Jul 2020, 17:34

@mrjj i dont use arduino too. Raspberry Pi is what i use.
The stdint.h is just a standart library or where can i get it?

If this change remove the error do u thing when i type in a raspberry pin into the constructor e.g. 22 it will work?

mrjj · 8 Jul 2020, 18:45

@AlexKrammer
Oh
I just assume since it had Arduino included and most google searches talked about Arduino :)

Well i just added
#include <stdint.h>
and it knew it.
So its included on newer compilers.

If this change remove the error do u thing when i type in a raspberry pin into the constructor e.g. 22 it will work?

Yes if it has that chip then yes.
https://www.circuitbasics.com/raspberry-pi-ds18b20-temperature-sensor-tutorial/

AlexKrammer · 8 Jul 2020, 18:54

@mrjj
And if i create a new class called "CheckTemlerature" how could i use the DS18B20 sensor.
The first thing to open the constructor with input the Raspberry Pin.
Second step Funktion getTemp?
Third step close with destructor?
Thanks for halp

mrjj · 8 Jul 2020, 19:33

@AlexKrammer
Yes, it seems that way looking over the examples.

are you using the
DS18B20::DS18B20(const char* address) version or the other version using uint pin ?

AlexKrammer · M mrjj 8 Jul 2020, 18:54

@mrjj
I deleted the DS18B20::DS18B20(const char* address) version and try it with your idea. I hope it will work but ill see it tomorrow. Its enough for today.
Thanks a lot.

AlexKrammer · M mrjj 8 Jul 2020, 18:54

@mrjj
Now i removed the
#include "Arduino.h"
#include <OneWire.h>

and added #include <stdint.h>

But now i receive the error massage with OneWire again.
How did you solve that problem?

The second fault is that the .cpp produced a lot of errors too.
I think it depends on the OneWire file.

How did you solve that problem?

mrjj · 11 Jul 2020, 09:53

Hi
That include file comes from
https://www.pjrc.com/teensy/td_libs_OneWire.html
But im not sure that works with a RaspberryPi directly.

AlexKrammer · 11 Jul 2020, 10:01

@mrjj
that to files OneWire.h and OneWire.cpp include also like DS18B20 as existing File?

mrjj · 11 Jul 2020, 10:03

@AlexKrammer
Yes but im not sure it will just work with a pi board.

AlexKrammer · M mrjj 11 Jul 2020, 10:01

@mrjj
its even dont work on my windows pc ^^

AlexKrammer · 7 Nov 2020, 10:08

@mrjj
There are still error. i dont know, why you dont receive that errors respectively when you try to compile the code, why its work. if i try to run it, there are hundreds of error messages.

mrjj · 7 Nov 2020, 10:18

@AlexKrammer
Well i didnt download and added OneWire to see. Maybe why.
Just checkout DS18B20 as question started with.
I dont have a board to test on so i would never be able to run it anyway.

Thats just #include <stdio.h> it complains about.
Very odd the .h does not include that.

Also, you do understand that these libs are meant to be used ON the board.?
They can never read a sensor on a pi board where apps run on win pc and have the pi board connected via USB
or similar.
But you do seem to have a raspberry Debian running so you are compiling directly on the board, right ?

AlexKrammer · 7 Nov 2020, 10:23

@mrjj
Now I includes #include <stdio.h> in ds18b20.cpp but nothing changed.
the error C1083 does not depend on stdio.h, does it?

yes i have both systems running.

mrjj · 7 Nov 2020, 10:26

@AlexKrammer
Ok. Good. Just checking
No that error comes from some missing .h file. As it shows.
From the utils folder
https://github.com/PaulStoffregen/OneWire/tree/master/util
so you should add those too it seems.

AlexKrammer · 11 Jul 2020, 10:34

oh thanks. that i missed. but its funny. i have the same errors on windows and raspien.
i think it dont depend where to compily. The only different i think will be, on raspberry will the outputs work. Dont you think?

mrjj · 11 Jul 2020, 11:04

@AlexKrammer
Well it should give same errors from compile on both systems if they are related to missing includes.
What are the errors now ?

Still bitRead etc ?

And yes, the biggest difference is when you run it. On win pc there would be no hardware to to talk to.

AlexKrammer · M mrjj 11 Jul 2020, 10:34

@mrjj no but much more ^

mrjj · 11 Jul 2020, 11:18

Hi
Seems to come from
https://www.arduino.cc/reference/en/language/functions/interrupts/nointerrupts/

So I think we are down the wrong path using this with a pi board as it seems tied to
Arduino.

AlexKrammer · 11 Jul 2020, 11:21

@mrjj
and what will be the right way. is it possible to use qt for this?
is it possible to create a own library to convert the input of the sensor in a temperatur?

mrjj · 11 Jul 2020, 11:26

@AlexKrammer
Hi
But do you have such sensor ?
and hook it up to the board like they do here ?
https://www.circuitbasics.com/raspberry-pi-ds18b20-temperature-sensor-tutorial/