Try to measure RPM is a free Android application developed by ゾん. It falls under the category of Utilities & Tools and aims to measure the number of revolutions of a motor, specifically created for radio control Mini-Z. The main function of the app is to measure rotational speed.

To use Try to measure RPM, simply tap on the "Start" button and turn on the motor. Then, bring the motor close to the microphone and the app will measure the rotational speed. It's important to note that due to the high level of noise, the recognition may not be accurate. However, you can adjust the "Boundary value setting" to improve recognition, although this may also increase the chances of mistaken readings.

Overall, Try to measure RPM provides a simple and convenient way to measure the RPM of a motor. It is easy to use and offers a useful tool for radio control enthusiasts.