ENS160 air sensor will not compile

[jimk123]

trying to follow this tutorial: https://learn.adafruit.com/adafruit-ens ... r?view=all for this product I bought here: https://www.adafruit.com/product/5606

The library install was not what I am used to but I followed the tutorial, downloading a zip and then using the IDE to unzip and install it , it is in the library folder as 'ENS160_driver-master' and I did relaunch the Arduino IDE after installing the library.

I am using arduino 1.8.10 and getting these errors trying to compile the sample code ens160basic_std:


C:\Users\Jim\BANNED\Documents\Arduino\libraries\ENS160_driver-master\src\ScioSense_ENS160.cpp: In member function 'void ScioSense_ENS160::_i2c_init()':

C:\Users\Jim\BANNED\Documents\Arduino\libraries\ENS160_driver-master\src\ScioSense_ENS160.cpp:347:77: error: no matching function for call to 'TwoWire::begin(uint8_t&, uint8_t&)'

if (this->_sdaPin != this->_sclPin) Wire.begin(this->_sdaPin, this->_sclPin);

^

In file included from C:\Users\Jim\BANNED\Documents\Arduino\libraries\ENS160_driver-master\src\ScioSense_ENS160.h:19:0,

from C:\Users\Jim\BANNED\Documents\Arduino\libraries\ENS160_driver-master\src\ScioSense_ENS160.cpp:11:

C:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src/Wire.h:52:10: note: candidate: void TwoWire::begin()

void begin();

^~~~~

C:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src/Wire.h:52:10: note: candidate expects 0 arguments, 2 provided

C:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src/Wire.h:53:10: note: candidate: void TwoWire::begin(uint8_t)

void begin(uint8_t);

^~~~~

C:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src/Wire.h:53:10: note: candidate expects 1 argument, 2 provided

C:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src/Wire.h:54:10: note: candidate: void TwoWire::begin(int)

void begin(int);

^~~~~

C:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src/Wire.h:54:10: note: candidate expects 1 argument, 2 provided

Multiple libraries were found for "Wire.h"
Used: C:\Program
Multiple libraries were found for "ScioSense_ENS160.h"
Used: C:\Users\Jim\BANNED\Documents\Arduino\libraries\ENS160_driver-master
exit status 1
Error compiling for board Arduino/Genuino Uno.

[jimk123]

this is odd, I use the sensor name in the title but when it posted it turned it into 'banned" :(

[Franklin97355]

Can you tell us what the word was without using the word so we can investigate? The bot does not like the word.

[adafruit_support_carter]

Yep, it was triggering something in the word filter. Updated that and should work OK now.

[adafruit_support_carter]

In response to the Arduino compile time issue:

Code: Select all

C:\Users\Jim\BANNED\Documents\Arduino\libraries\ENS160_driver-master\src\ScioSense_ENS160.cpp:347:77: error: no matching function for call to 'TwoWire::begin(uint8_t&, uint8_t&)'

That library is using a non-standard begin() call:
https://www.arduino.cc/reference/en/lan ... ire/begin/

Seems related to this issue:
https://github.com/sciosense/ENS160_driver/issues/4

[jimk123]

The sensor names was ENS160

[jimk123]

Adafruit, if i am reading your reply correctly it is a problem with the vendors library? In the link you provided it looks like another user reported it but the vendor has not responded.

How did adafruit test this in their tutorial?

[adafruit_support_carter]

It was probably tested using a different platform. Something other than an UNO.

The issue is here:
https://github.com/sciosense/ENS160_dri ... 0.cpp#L347
Specifically - the call to Wire.begin(this->_sdaPin, this->_sclPin)

That method never actually gets called, since the example uses default pins. But if a Board Support Package does not have an implementation of Wire.begin(uint8_t sda, uint8_t, scl), then it can't even build.

This should be pretty easy to fix. But it doesn't look like sciosense is responding to issues posted in the library repo. We'll likely fork that repo and fix it there. Will update back here when that's done.

If you want to fix it now, can make a simple edit to your local copy of the library file ScioSense_ENS160.cpp. Scroll down to line 346 and look for this method:

Code: Select all

void ScioSense_ENS160::_i2c_init() {
	if (this->_sdaPin != this->_sclPin) Wire.begin(this->_sdaPin, this->_sclPin);
	else Wire.begin();
}

and change it to:

Code: Select all

void ScioSense_ENS160::_i2c_init() {
	Wire.begin();
}

[jimk123]

That is great customer service, thank you so much !

[jimk123]

I just downloaded the latest library adafruit forked and it compiles (using the ens160basic_std example) but will not find the sensor on startup, i added a scani2c function it it seems to find the board:

19:41:22.368 -> Scanning I2C devices...
19:41:22.368 -> I2C device found at address 0x53
19:41:22.604 -> I2C devices found: 1
19:41:22.604 -> ------------------------------------------------------------
19:41:22.604 -> ENS160 - Digital air quality sensor
19:41:22.651 ->
19:41:22.651 -> Sensor readout in standard mode
19:41:22.651 ->
19:41:22.651 -> ------------------------------------------------------------
19:41:23.642 -> ENS160...failed!

thoughts ?
thanks

[adafruit_support_carter]

Did you change the sketch code to use the 0x53 address?
https://learn.adafruit.com/adafruit-ens ... ss-3127868

[jimk123]

my fault , i did not see that had to be changed to use the default address of 0x53 of the sensor board. Code is working now. Also thanks for forking the ScioSense code and fixing that bug.
thank you