This projects aims to provide music entertainment for toddlers.
The idea is that children will get a WiFi connected box and some objects (e.g. PlayMobil figures) that are equipped with NFC stickers. Whenever the child is putting such an object on the box, the box will start to play audio. The NFC to audio URL translation can be configured on a server in the Azure cloud. So a PlayMobil knight might make the box play a story about knights, or a picture with grandpa may play his voice telling a small story.
There are couple of commercial solutions for this, but this project aims to create an open platform.
If you want to build your own jukebox you will need the items from the shopping list.
The Raspberry Pi will be connected to an NFC/RFID-Card reader and a speaker module.
The Server component will be run on Azure and provides a service that resolves NFC tags to download/streaming URLs.
The web client will allow users to configure their Raspberry Pi and add NFC tags or upload audio files.
Users may want to keep audio files in their local network. The web client will allow to configure such links to local NAS.
Nobody wants their children to stay awake all night to play with this box. The website will allow to configure times where the system is inactive.
- Download latest Raspbian image with Desktop
- Use Etcher to flash the image onto your SD-Card
- Create a file called
wpa_supplicant.confon the SD-Card and put the following content in:
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=<<Your_ISO-3166-1_two-letter_country_code>>
network={
ssid="<<Your_SSID>>"
psk="<<Your_PSK>>"
key_mgmt=WPA-PSK
}- Replace <<Your_ISO-3166-1_two-letter_country_code>> with your ISO Country Code (such as DE for Germany), <<Your_SSID>> with your wireless access point name and <<Your_PSK>> with your wifi password.
- ATTENTION: The file must be formatted with Linux style line endings.
- More details can be found on stackexchange.
- Create a file called
ssh(no ending) on the SD-Card. It can be left empty.
- Modify
config.txtand remove the comment beforedtparam=spi=on. more info - Add the following to the end of the file:
dtoverlay=gpio-shutdown
enable_uart=1- The following schema shows the wiring for the RFID-RC522 Mifare reader.
- ATTENTION: Please note that some vendors have a slightly different layout on the module and that the free pin may be at a different position.
- Put the SD-Card into the Raspberry Pi
- Connect the Raspberry Pi with the USB-Charger
- Try to find out the IP of your device
- If you have multiple Raspberry Pi in the network and want to check if you are SSHing into the right one, you can change the color of the built-in LEDs and see on which Pi it happens: https://www.jeffgeerling.com/blogs/jeff-geerling/controlling-pwr-act-leds-raspberry-pi
- Connect to the Raspberry Pi via SSH (you can use putty on Windows)
- Username: "pi", Password: "raspberry"
- Change the default password with the command
passwd - Change the hostname with
sudo raspi-config. more info
sudo apt-get updatesudo apt-get install curl unzipcurl -sSL -o firmware.zip https://audio-hub.azurewebsites.net/api/latestfirmwareunzip firmware.zip -d firmware && rm firmware.zipchmod u+x firmware/install.shsudo firmware/install.sh
tail -f PiServer/publish/logs/clientlog.log
If you want to run custom firmware on the Raspberry Pi then make changes in the src/PiServer project and do the following:
- Make sure the latest version in
RELEASE_NOTES.mdis higher than the latest released version. - Run
build.cmd CreateFirmware - Copy your firmware to the Rasperry Pi - e.g.
pscp -r temp/ pi@192.168.178.28:/home/pi/(You need to use the IP of your Raspberry Pi) - SSH into your PI and run
sudo service PiServer restart. This process will take a while and put your firmware in place.