The biggest change from the LEGO Mindstorms NXT and NXT 2.0 to the EV3 is the technological advances in the programmable brick. 3 Notable robots made with the EV3 platform.For example, here the value from a Rotation sensor is manipulated using a Math block set to Advanced mode, then wired into the Frequency setting of a tone. In some cases, however, you will need modify these values first to get values in a usable range. You could experiment with wiring a value from, say, a Rotation or Ultrasound sensor block into the Frequency, Volume, or Duration of a Sound block set to Play Tone. You can use the Sound Editor (Tools > Sound Editor) to record and save your own sounds (e.g.The Sound block allow you to play a particular audio file (not mp3s sorry!), note, or tone.Here are some programming techniques that might be helpful… as a dial to control pitch, duration, or volume.
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