Support for TENMA 72-2540 v5.8

[comkieffer]

In V5.8 of the TENM firmware, the identity command appends the serial number of the unit to the result.

>>> p = PowerSupply(get_port("/dev/ttyACM1"))
>>> p.get_identity()
'TENMA 72-2540 V5.8 SN:03211356'

Given that the is_tested check is basically

def is_tested(self):
    return self.get_identity() in tested_firmware

how should this be extended to support these newer firmwares?

The easiest option would be to truncate, but that doesn't very future-proof. Do you have any suggestions?

[attie]

I'd suggest reworking the tested_firmware to be a series of regex expressions (use re.compile()), and look for a match.

Are you happy to do this?