Thanks for pointing it out, I had found this bug recently, basically the block ignores whatever you put in the radius position, but as you say it can be corrected in python.
opps, port A is only for i2c, Port B is for I/O
Sorry again for the typo that I didn't catch.
Sorry 2 I was playing with code and didn't realise both the adc and earth sensor was there as I was working on my book.
Sorry again for the confusion.