Unreliable on RP2350

[Ultrawipf]

After a soft reload this library fails to detect the device on RP2350 chips throwing a device not found exception on the first read access after writing the ctrl reg.
Inserting a 1ms sleep after self._write_u8(_MMA8451_REG_CTRL_REG2, 0x40) seems to fix this issue possibly indicating a timing issue.

This seems like a hacky solution but is currently required for reliable operation.

[ladyada]

can you submit a PR?

[Ultrawipf]

Sure.
Another probably better option might be to poll for the device or try and catch the next access after the initial reset until it responds in case the required delay varies with different hardware.

[FoamyGuy]

resolved by #28