The Grove- Speaker is a module which consists of power amplification and voice outputs. The loudness can be adjusted by the on-board potentiometer. With different input frequencies, the loud-speaker generates different tones. Coding the music into it, DIY your own music box!
The speaker can emit a variety of sounds like a car horn, doorbell and ignition . The different sounds are based on the frequency of the input signal.
You can supply different frequency signal to this module. It generates these signal via PWM or even digital write and delay.Here we are going to show you how to generate these signals using delay, the speaker sound bass 1~7.
1 x Module Board