Difference between revisions of "Buzzer (RTTTL)"

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= Hardware =
 
= Hardware =
[[File:buzzer.jpg]]
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[[File:buzzer.jpg|420px]]
 
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[[File:Piezo_element.jpg|420px]]
[[File:Piezo_element.jpg]]
 
  
 
= ESP Easy =
 
= ESP Easy =

Revision as of 19:45, 19 July 2017

Introduction

Hardware

Buzzer.jpg Piezo element.jpg

ESP Easy

Tones

From ESPEasy v2.0.0-dev6 (in the testing plugin set) its also possible to play a tone on a pin, via a speaker or piezo element:

http://<ESP IP address>/control?cmd=tone,14,1300,200

Plays a 1300 hz tone for 200 ms on gpio-14h

Melodies and ringtones

From ESPEasy v2.0.0-dev6 (in the testing plugin set) its also possible to play melodies via [RTTTL]

(don't forget to remove the spaces)

http://<ESP IP address>/control?cmd=rtttl,14:d=8,o=5,b=180,c6,b,c6,p,g,g-,p,f,b,c6,p,d6,p,g,p,c6,b,c6,p,d6,p,f,g,g-,4p,g,f,4d-


This plays a melody on pin 14.

You can also use these from rules. We use it to let our alarm system give feedback to the user via a piezo speaker.

To make a boot-sound on startup, create a rule like this:

On System#Boot do 
  rtttl,14:d=10,o=6,b=180,c,e,g
endon