Slight changes to support specific application

Dependents:   ColourSensor

Fork of PCF8574 by Simon Ford

Changes

RevisionDateWhoCommit message
2:6c22af0aafbb 2016-11-10 jolyon If device does not ack the return data is 0 default tip
1:ec8da0c59403 2010-06-03 simon (none)
0:ab4e14b911ee 2010-06-03 simon (none)