Well, the difference in supply voltage vs. the specification, could explain why it's running a bit fast. It's why it's a good idea to power the modules from 3.3V, there is not as much difference when it falls back to battery power, 3.0V.
Well, the difference in supply voltage vs. the specification, could explain why it's running a bit fast. It's why it's a good idea to power the modules from 3.3V, there is not as much difference when it falls back to battery power, 3.0V.