[Joe Ross]

Originally Posted by Mark McLeod

There are a few simple ways to extend the rpm range of your encoder.

1. Use an encoder that produces fewer counts per revolution, e.g., pick a 64 count encoder rather than a 256 count encoder.
2. Use 1x sampling in your code rather than 4x sampling.
3. For measuring a shooter wheel that only goes in one direction, you can also leave disconnected the encoder B channel. Since you won't care about determining direction the A channel is all you really need.
4. Gear down the encoder shaft so it revolves more slowly that the shaft you want to measure.

For (3), if you disconnect the encoder B channel, you will also need to change the LabVIEW code from the encoder library to the counter library.