DS18B20.ino causes compilation error in arduino IDE

[xoseperez]

Originally reported by: Marco de Gier (Bitbucket: DiGierre, GitHub: Unknown)

---

ds18b20 line 89 contains 'isConversionComplete'. This causes a compilation error in arduino IDE "class 'DallasTemperature' has no member named 'isConversionComplete'.

This happens with all available versions of DallasTemperature in the library manager (3.7.6, 3.7.5, 3.7.2). It also seems strange to me as I found that this seems an old issue from 2013 "isConversionComplete is not implemented" (milesburton/Arduino-Temperature-Control-Library#12)

I had the same issue in espurna 1.7.1 (it was the main reason for upgrading to the latest but no luck on this issue).

The workaround is to update/OTA the DS18b20 .bin from the espurna bitbucket. That works fine.

[xoseperez]

The isConversionComplete method was added on May 2016.

[xoseperez]

Original comment by Marco de Gier (Bitbucket: DiGierre, GitHub: Unknown):

---

I see. It seems DallasTemperature is actually 3.7.7 on github but Arduino IDE (1.8.5 on W10) only goes as far as 3.7.6 and that one does not have isConversionComplete. I installed 3.7.7 and with that one it compiles ok. Advise to put this in the wiki instructions (unless this is something weird in my installation but the library updting seems to work ok)

[xoseperez]

Yes, good idea. Will do it.

[xoseperez]

Original comment by blue (Bitbucket: bluexp, GitHub: bluexp):

---

Is DHT currently working? cause I can't make it work using latest DallasTemperature (3.7.7). In webui I get "NOT CONNECTED" and in serial log I get "[DHT] Error: -2"

[xoseperez]

Original comment by Andreas L. (Bitbucket: andreaslink, GitHub: andreaslink-de):

---

I have the exact same behaviour as @bluexp and also having DallasTemperature v3.7.7 installed, but I use an DS18B20. I do not get any temperature value, I also replaced the DS18B20 already with another one, but same behaviour. So probably, it's worth creating a new thread? My version is directly from GIT-version showing 1.10.1 and I compiled with Arduino IDE on my own.

[xoseperez]

@bluexp DHT and Dallas are different sensors. You should enable and use DHT settings in sensors.h

[xoseperez]

@andreaslink-de Try enabling the DS18B20_PULLUP setting.

[xoseperez]

Original comment by Andreas L. (Bitbucket: andreaslink, GitHub: andreaslink-de):

---

Is it really necessary to activate the PullUp (BTW, where do I activate it?) as I have soldered a 4,7k between GPIO14 and 3,3V on my SonOff Basic. So I would assume, this would be Ok, too? Anyway, for the future I know now, I can save this and will activate internal PullUp (I have another one on an older espurna v 1.9.5 with resistor and same DS18B20 running since weeks).

[xoseperez]

Original comment by Andreas L. (Bitbucket: andreaslink, GitHub: andreaslink-de):

---

Ok, found PullUp in sensors.h, but doesn't this already mean, internal pullup is activated by default?

Can't get it going anyway :-S.

[xoseperez]

Original comment by Andreas L. (Bitbucket: andreaslink, GitHub: andreaslink-de):

---

And just to complete this, this is my current botton setup in "config/arduino.h":

#!arduino
//--------------------------------------------------------------------------------
// Features (values below are non-default values)
//--------------------------------------------------------------------------------

#define ALEXA_SUPPORT          1
#define ANALOG_SUPPORT         0
#define COUNTER_SUPPORT        0
#define DEBUG_SERIAL_SUPPORT   1
#define DEBUG_TELNET_SUPPORT   0
#define DEBUG_UDP_SUPPORT      0
#define DHT_SUPPORT            0
#define DOMOTICZ_SUPPORT       0
#define DS18B20_SUPPORT        1
#define HOMEASSISTANT_SUPPORT  0
#define I2C_SUPPORT            0
#define INFLUXDB_SUPPORT       0
#define IR_SUPPORT             0
#define LLMNR_SUPPORT          0  // Only with Arduino Core 2.4.0
#define MDNS_SUPPORT           0
#define NOFUSS_SUPPORT         0  // Only with Arduino Core 2.4.0
#define NTP_SUPPORT            1
#define RF_SUPPORT             0
#define SPIFFS_SUPPORT         0
#define TELNET_SUPPORT         0
#define TERMINAL_SUPPORT       0
//#define WEB_SUPPORT            0

[xoseperez]

Hi
Maybe you could test the "sensors" branch where i'm doing a complete refactor of all sensors and adding new ones. You can enable DALLAS_SUPPORT there I try it...

[xoseperez]

Original comment by blue (Bitbucket: bluexp, GitHub: bluexp):

---

I've already did that, here is my sensor config:

#!arduino

// DHTXX temperature/humidity sensor
// Enable support by passing DHT_SUPPORT=1 build flag
//--------------------------------------------------------------------------------

#ifndef DHT_SUPPORT
#define DHT_SUPPORT                 1
#endif

#ifndef DHT_PIN
#define DHT_PIN                     5
#endif

#ifndef DHT_TYPE
#define DHT_TYPE                    DHT11
#endif

#ifndef DHT_PULLUP
#define DHT_PULLUP                  0
#endif

#ifndef DHT_UPDATE_INTERVAL
#define DHT_UPDATE_INTERVAL         60000
#endif

#define DHT_TEMPERATURE_TOPIC       "temperature"
#define DHT_HUMIDITY_TOPIC          "humidity"

#define HUMIDITY_NORMAL             0
#define HUMIDITY_COMFORTABLE        1
#define HUMIDITY_DRY                2
#define HUMIDITY_WET                3

As I have pull up in my circuit I didn't set pull up in sensor.h

[xoseperez]

These are the configuration settings for a DHT sensor, not a DALLAS one. You should enable DALLAS_SUPPORT.

[xoseperez]

Any update on this?

[xoseperez]

Original comment by Andreas L. (Bitbucket: andreaslink, GitHub: andreaslink-de):

---

Sorry, pure X-Mas business at home, did not had any time to test the branch yet.

[xoseperez]

Original comment by blue (Bitbucket: bluexp, GitHub: bluexp):

---

I have no problem with DS18B20 and its working, But I can't make my dht11 working.

[xoseperez]

Tested it with a DHT11 I had and it is a timing issue. Please check latest commit in dev branch and edit the new sensors.h file to enable DHT_SUPPORT and configure it:

#ifndef DHT_SUPPORT
#define DHT_SUPPORT                     1
#endif

#ifndef DHT_PIN
#define DHT_PIN                         5
#endif

#ifndef DHT_TYPE
#define DHT_TYPE                        DHT_CHIP_DHT11
#endif

[xoseperez]

Released with 1.11.2

[xoseperez]

Removing milestone: 1.11.2 (automated comment)