Soldered Support:
I checked that version of the BME680 breakout. It’s an e-radionica version, so the product is older (and the page says it’s retired). On that version, there is a jumper on the back of the board.
Here’s how it appears on the schematic:
I’m not certain which side is which (how the jumper is oriented on the physical board), but with this it’s possible to get two different addresses:
If SDO is connected to 3V3, the address is 0x77
If SDO is connected to GND (default) - the address is 0x76.
On the schematic you can also see that it’s connected to GND by default, which is a thin trace on the surface of the board between 2 jumpers that can be easily scratched with a sharp object, so you’ll need to do that if you want to connect SDO to 3V3 for the other address.
I recommend using an I2C scanner sketch to see which I2C devices are connected to your microcontroller: Arduino Playground - I2cScanner
If you connect 2 BME680s with different addresses, you should see both in the serial output of this sketch.
Original message (Croatian)
pregledao sam tu verziju breakouta za BME680. To je e-radionica verzija, tako da je proizvod stariji (i na stranici piše da je umirovljen). Na toj verziji, postoji jumper sa stražnje strane pločice. Evo gdje se nalazi:
Evo kako to izgleda na shemi:
Nisam siguran koja strana je točno koja (kako je jumper okrenut na fizičkoj pločici), ali s ovime je moguće dobiti dvije različite adrese:
Ako je SDO spojen na 3V3, adresa je 0x77
Ako je SDO spojen na GND (default) - adresa je 0x76.
Na shemi je vidljivo također to da je spojeno na GND po defaultu, to je tanak vod na površini pločice između 2 jumpera koji se može lagano ‘izgrecati’ sa nekim oštrijim predmetom, pa će se to morati napraviti ukoliko želite spojiti SDO na 3V3 za drugu adresu.
Preporučujem korištenje I2C scanner sketcha kako bi vidjeli koji su sve I2C uređaji spojen na vaš mikrokontroler: Arduino Playground - I2cScanner
Ako spojite 2 BME680 sa različitim adresmaa, trebali bi vidjeti oba u serijskom ispisu ovog sketcha.
Attachment omitted in migration: image.png
Attachment omitted in migration: image.png