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ESP8266 BME680 Web Server problem: Could not find a valid BME680 sensor, check wiring!

Q&A Forum › Category: ESP8266 › ESP8266 BME680 Web Server problem: Could not find a valid BME680 sensor, check wiring!
0 Vote Up Vote Down
Meinhard Spitzer asked 5 years ago

I use the AZ-Delivery NodeMCU Amica V2 for your project and a BME680 by pimoroni.
The wiring is written as in project.
What can I do?

4 Answers
0 Vote Up Vote Down
Sara Santos Staff answered 5 years ago

Hi.

Double-check that you are in fact wiring the BME280 properly.

Then, I suggest using an I2C scanner sketch to check the BME280 I2C address and change the code if necessary. You can find the sketch here: https://raw.githubusercontent.com/RuiSantosdotme/Random-Nerd-Tutorials/master/Projects/LCD_I2C/I2C_Scanner.ino

Finally, I suggest experimenting a sample sketch from the BME280 sensor library and see if that works: https://raw.githubusercontent.com/RuiSantosdotme/ESP32-Course/master/code/bme280test/bme280test.ino

Regards,
Sara

0 Vote Up Vote Down
Meinhard Spitzer answered 5 years ago
Dear Sara, 
thank you very much for the good advices.
Scanning the I2C address resulted in 0x76.
The example sketches again resulted in the error message:

"Could not find a valid BME680".

Could the sensor be defective, even if it delivers an I2C address?

What else can I do?

Regards,
Meinhard
 
0 Vote Up Vote Down
Meinhard Spitzer answered 5 years ago

Hi friends,
I was able to solve the problem myself:
For the correct I2C address I had the line:
if (!bme.begin())
replace by: 
if (!bme.begin(0x76))
Thanks again!
Meinhard

0 Vote Up Vote Down
Sara Santos Staff answered 5 years ago

Great!
I’m glad you solved the problem.
I’ll mark this issue as resolved.
If you need further help, you just need to open a new question in our forum.
Regards,
Sara

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