I’m using the breakout garden mini with bme680 (environment sensor) rv3028 (Real Time Clock) to get environmental reading and want to add a DS18B20 waterproof temperature sensor.
Using the wonderful Pintout (pinout.xyz) website to check the different GPIO pins being used, 1wire can be used on pin 7 (GPIO 4) and the other option are pin 11 or 13 gpio’s (17,27).
The only one of these that appears to be on the breakout appears to be pin 7 (gpio4 “int”) which is used by the board. So that’s the problem and the question can I use pin 7 (gpio 4) as 1 wire interface or is it locked by the board or do I have to wire up the bme680 and rv3028 without the breakout garden board just using pins (1,3,5,9) for these and pin 7 for one wire.
That int “can be” used by some breakouts. The BME680 doesn’t use it, but the RV3028 “can” use it. I have several RV3028’s wired up with that pin not connected and they work just fine. As far as I know its the python code run for that breakout that determines if its used or not.
You could enable 1 wire and see if it messes up the RV3028. I can’t see it damaging it, just messing up how it keeps time.