The parts arrived for the RPM meter that uses an Arduino and reciprocal counting to get a three-times-a-second update rate with 1rpm resolution.

This research report categorizes the flow meter and counting devices market by type include gas and liquid flow meters, speed indicators and counting devices.

[Udo Klein] took on the challenge of counting as fast as possible using an Arduino board. The quest involves a search for short-cuts that will let him drive a 20-bit counter as quickly as possible ...

Report Scope This research report categorizes the flow meter and counting devices market by type include gas and liquid flow meters, speed indicators and counting devices.