Speaker

It is a speaker such as piezo. Connect with two wires, and generate sound by current.

wired(obniz , {signal. gnd} )

Connect to the speaker. If there are plus and minus, please specify minus to gnd.

// Javascript Example
var speaker = obniz.wired("Speaker", {signal:0, gnd:1});

play(frequency)

Specify the frequency of the sound from the speaker.

// Javascript Example
var speaker = obniz.wired("Speaker", {signal:0, gnd:1});
speaker.play(1000); //1000hz

stop()

stop playing.

// Javascript Example
var speaker = obniz.wired("Speaker", {signal:0, gnd:1});
speaker.play(1000); //1000hz
await obniz.wait(1000);
speaker.stop();