BME680 - Adress76 but IOError

Support
1

Hello, I am new here. Although there are already some similar topic I do not find a solution for my basic problem :-( bme680 is connected on Pi3B with debian9, I2C activated; Pins connected as described. i2cdetect -y 1 gives adress 76. I have used the easy installation script “curl https://get.pimoroni.com/bme680 | bash” but I get while starting the example temp-press-hum.py followingb errors:

File “./temp-press-hum.py”, line 14, in
_ sensor = bme680.BME680()_
_ File “/usr/local/lib/python2.7/dist-packages/bme680/init.py”, line 34, in init_
_ self.set_humidity_oversample(OS_2X)_
_ File “/usr/local/lib/python2.7/dist-packages/bme680/init.py”, line 83, in set_humidity_oversample_
_ self.set_bits(CONF_OS_H_ADDR, OSH_MSK, OSH_POS, value)
_ File “/usr/local/lib/python2.7/dist-packages/bme680/init.py”, line 284, in set_bits
_ self.set_regs(register, temp)
_ File “/usr/local/lib/python2.7/dist-packages/bme680/init.py”, line 289, in set_regs
_ self.i2c.write_byte_data(self.i2c_addr, register, value)
IOError: [Errno 121] Remote I/O error

Questions:

  1. why? where I find a bug fix for the examples?
  2. if I later start the GUI startx and than open a terminal --> i2cdetect shows no address 76 any more. why?
  3. I would like to access bme680 with python3 instead of 2: which examples can I use?

Please help. Thank you!

2

How do you have it connected to your Pi? Jumper wires or directly to GPIO on Pi? Did you solder a header to it?

3

Hello,
jumper wires between bme680 and the adapter Nulsom ns-gpio-p-02 set on the gpio of the pi. No soldering…
Any suggestion?
Thanks in advance!

4

Ok, on the BME680 are the jumpers just going into the holes in the board, or did you solder a header onto the BME680?

5

15310306319147940863493446184240
15310306319147940863493446184240.jpg2138×2851 2.42 MB

6

no solders on the breakout of bme680: just plugged in they held…😕

7

That’s likely your issue. The pins just put into the holes will be a poor connection. Its probably an intermittent connection. Also, you could have just put your jumper wires right on the Pi’s GPIO pins, and skipped using the bread board breakout board.

8

It took some time I got all material. Now I have solded the terminal: it works perfectly!
Never thought that also HW can have a bug 😂… thank you for support!

9

Glad you got it working, enjoy.