simple method to identify which expansion board is being used?

[philwilkinson]

is there a simple micropython method I can call to determine the expansion board/pyscan/pysense/pytrack my pycom devboard is connected to?
The only option I can think of is to use exception handling. e.g. try py = Pysense():

[jcaron]

@philwilkinson read_hw_version is what you need.

See https://forum.pycom.io/topic/2736/are-there-readable-shield-id-s/3

Note that this won’t work for the first versions of the expansion board which didn’t have a PIC.

[plsecker]

Same topic: https://forum.pycom.io/topic/2469/easy-way-to-tell-what-expansion-board-is-in-use

Here's a method to create a generic exp. board object:

from pycoproc import Pycoproc
from pysense import Pysense
from pytrack import Pytrack

# create exp board object using unknown board type
pyexp = Pycoproc(1)

if pyexp.read_product_id() == 61458:
    print("Using Pysense")
    pyexp = Pysense()
if pyexp.read_product_id() == 61459:
    print("Using Pytrack")
    pyexp = Pytrack()

Later on use eg:

if pyexp.board_type == pyexp.PYSENSE:
    si7006 = SI7006A20()

Perhaps someone can tell us the id for the Pyscan board.