When step motor moves, it creates the vibration with a specific frequency, the vibration make the surrounding environment oscillate. The oscillation creates a mechanical wave. Frequency value is depended on the speed. When frequency value is between about 20 Hz and 20 kHz, it becomes sound wave and our ear can hear it.
By adjusting the speed, we can create the different frequency of sound. Therefore, we can create a different note of music.
By mapping music notes of a song to speed, moving step motor with the speed values in sequence, step motor can create melody of that song. We can use more than one motor to play a complex song.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Maker Business — The first step in making: a PCB
Wearables — Try maximum twinkling
Electronics — Current limiting!
Biohacking — Grindfest 2018
Python for Microcontrollers — PyCon US 2018 Rocked!
No comments yet.
Sorry, the comment form is closed at this time.