Welcome to the project RaspySayIp4Addr.
This project is mainly thougth to be used on RASPBERRY PIs as for me this is the main use case. But if you would use such a solution on an other linux system feel free to use it there. I will be glad if I get some inputs from you. So whenever you would have an idea to change this solution write me a note.
The idea for this project was to add an audio output of the actual IP-V4 address on booting a raspberry pi computer. Often when I use my RASPBERRY PIs for development I do not add a monitor to the raspberry pi and I just want to work with an external ssh client. But then I do not know the IP of this device. Of course there are also other possibilities to find this information (e.g. install fing on my laptop )
But with this solution I will only add a small software that will tell me on the audio port what the current IP addresses are. I just need an ear plug. This audio output only will use the analog audio channel. Therefore the script first will change the audio output to analog before it says the IP4 addresses. Afterward it will set the audio channel back to the previous settings (Analog or HDMI).
The solution uses python3.
Download the whole project (e.g. via zip file from the browser). Run the file install.sh. This will automatically copy the files to a specific folder on /home/pi/ and add a call to the script run.sh to the cron-jobs with "@reboot" option. So whenever the raspby will be booted it will tell you the actual IP-addresses after 30 seconds.
Run the script "deinstall.sh" (e.g. from the installation folder). This will remove the according line from the crontab jobs and deletes the folder "~/.raspySayIp4Addr/".
Plug an ear plug into the raspy. Then you can test the output by running the script "run.sh".
You should here a voice that starts with "next IP4 address". Then it will say all IP addresses that are currently
set on your system.
E.g. ("next IP4 address 127.0.0.1 next IP4 address 192.168.1.23 next IP4 address 192.168.1.24") if WIFI and ethernet have got an address from the DHCP server.
Have fun!
Today (2018.11.07) I learned that older versions of raspbian do not work with python3-espeak and python3-netifaces. Until now I do not have the plan to port this solution down to older versions of raspbian. But actually I think it could also run with modifications on the scripts on python2 with python-espeak and python-netifaces. Current issue: raspberrypi/linux#3077 with latest updates to Kernel 4.19.
Therefore the solution was changed to use the commandline to generate a wav-file which then will be played with omxplayer. (2020.05.27) Until now no further updates
It was necessary to add an option "-o local" to the use of omxplayer as it was not playing sound without this option. (2021.09.26)