A pi based RFID music player for toddlers.

Intended to be run from a Pi Zero W in an enclosure with a RFID reader. It run a local media server, so you put music files on the pi's local disk and map RFID chips to those files. It will play over AirPlay / Chromecast.

My first project with Raspberry Pi or Python.

Follow these instructions to get noobs set up. Configure your WiFi and Install Raspian

When raspian boots for the first time, open a console and run sudo raspi-config and make the following changes:

• Change 1) Password to one of your choosing. Write it somewhere
• Change 2) Network Options -> N1) Hostname to ada-play
• Change 3) Boot Options -> B1) Desktop / CLI to Console Autologin
• Change 5) Interfacing Options -> P2) SSH to be enabled
• Finish and restart

Connect an RFID reader to the pi and download the software as described in this guide

Now your wifi should be set up and you can ssh pi@ada-play.local from another computer and connect with your password

git clone https://github.com/loneconspirator/ada-play.git
cd ada-play
./setup.sh

You can use SFTP or SCP and drop songs into /home/pi/Music

This is the daemon that makes the pi into a media server that can talk to AirPlay targets, and be controlled by iTunes remotes

• Install forked-daapd TODO: Make this hoop-jumping a shell script you can just run

• Configure forked-daapd

  • ssh pi@ada-play.local
  • edit the config file sudo nano /etc/forked-daapd.conf
  • point to library /home/pi/Music (line 71)
  • talk to airplay server (line 224, set password line 234)
  • have an admin password for the web ui (probably a good idea) (line 27)
  • Set the device name (line 186) Ada Play Device - this is for playing from HDMI / speakers connected locally

• Start the daemon

  • sudo service forked-daapd start
  • configure daemon to start at boot
  • Open rc.local as root sudo nano /etc/rc.local
  • Put this above the exit line: service forked-daapd start

• Configure the setup

  • Visit the forked-daapd web ui http://forked-daapd.local:3689/admin.html
  • Log in with uid admin and the password you set above
  • Click "Update Library" to scan your music folder
  • Select the target speakers in the "Outputs" section
  • Connect to ada-play preferably using the "Remote" app on a phone and verify you can play music over the speaker you've connected to ada-play

• Install mpc

  • sudo apt install mpc

• Set the timezone for the pi so that logging timestamp will be localized

  • sudo timedatectl set-timezone "America/Los_Angeles"

  import datetime datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S') '2018-02-12 00:38:37' dt = datetime.datetime.now()

• python script will crash if the mpc command returns with an error exit status
• Audio has gotten glitchy when python process runs away and gobbles up cpu
• I've also seen audio getting glitchy when there wasn't a process going haywire and memory usage wasn't even that bad (but the pi was sluggish in the terminal)
• It kind of appears that the python process takes up massive cpu normally
• I should use a library like this to daemonize the process https://pypi.python.org/pypi/python-daemon/