# Christmas Music Machine - CMM

**URL:** https://discourse.nodered.org/t/christmas-music-machine-cmm/18340
**Category:** Share Your Projects
**Created:** [24 November 2019 07:02 UTC](https://discourse.nodered.org/t/christmas-music-machine-cmm/18340 "2019-11-24T07:02:30Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![dynamicdave](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dynamicdave/32/96_2.png) [@dynamicdave](https://discourse.nodered.org/u/dynamicdave)
#### Post date: [24 November 2019 07:02 UTC](https://discourse.nodered.org/t/christmas-music-machine-cmm/18340/1 "2019-11-24T07:02:30Z")

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A couple of my IoT students are planning on designing and building a flow to play mp3 files (located on a RPi) to an amplifiler connected to the Pi's 3.5mm audio socket. [Project plan and progress diary](http://resources-area.co.uk/node-red-flows/cmm_project_diary.pdf)

Although I have a working solution, this thread will be used to document THEIR progress.

Here's a very rough sketch of the ideas discussed during their first session.

 ![matt_jonny](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/5/5d30338e86602a749d42e58393e5ce8bd00e454d.jpeg)

Note:  
There is nothing that ties this project to Christmas - they just wanted to try to out-do two other students, in the IoT Club, who are planning on controlling a Christmas tree from an ultrasonic distance sensor.

[Project plan and progress diary](http://resources-area.co.uk/node-red-flows/cmm_project_diary.pdf)