pi-talk PI hubitat driver controler
Turns Pi inst music player and speach device controled by hubitat
(c) 2021 by tmastersmart winnfreenet.com Licensed for use on hubitat
I created this set of scripts because I could not find one online that would allow to control my PI from Hubitat. I wanted to talk play music and have my hub to monitor when it gets to hot or stops responding. More options are planned. This started out as PI TALK but has changed into a PI controler. This is written mostly in PHP.
Updates I just updated to Raspbian Linux 11 and many of these preinstalled programs are no longer in the OS. breaking this script.
Changes.. You need to install GPIO manualy like this or see https://learn.sparkfun.com/tutorials/raspberry-gpio/all
git clone https://github.com/WiringPi/WiringPi.git cd WiringPi git pull origin ./build gpio -v
omxplayer is no longer in os 11 and I dont know how to install it. You will need to research this or use another player.
copy opt/vc directory from os 10 9 or 7 and create a opt/vc directory see this page its for zero. http://dev1galaxy.org/viewtopic.php?id=2967 I just copied the directory
Your pi needs a working webserver with PHP installed.
you need to install these files on your pi talk.php <-- this driver talks to this file temp.php <-- this file post back to this driver temp-rotate.php <-- Log rotator input-scan.php <-- Safe loading of get and post talk.sh <-- this runs in a loop to take action temp-chart.sh <-- Draws a png temp chart in /images
install-talk.sh <-- Installs extra programs on pi
Install as follows
place php files in /var/www/html and .sh files in /home/pi/
Talking is done by espeak See this https://behind-the-scenes.net/using-espeak-to-make-a-raspberry-pi-talk/
Enter this command from terminal aplay /usr/share/sounds/alsa/* You should hear WAV files played through your speaker if not your going to have to stop and find out why thats behound this guide.
run the install sudo bash install.sh
You need PHP and a webserver installed. Im sure you know how to do this. If you dont have a webserver I recomend installing Pi hole it will set everything up for you and install a dns server. It installs a small webserver
launch this script at startup if you want to play sounds nohup bash /home/pi/talk.sh > /dev/null 2>&1
It stays running and loops every 10secs
Its better to install this as a service using webmin than as a startup in chron So that you can use systemctl to stop it
sudo cp talk.service /etc/systemd/system && sudo systemctl start talk.service sudo systemctl status talk.service
http://0.0.0.0/talk.php?talk=test should say test
http://0.0.0.0/talk.php?play=1 should play 1.mp3 or 1.wav
http://0.0.0.0/talk.php?play=bell should play bell.mp3 or bell.wav
it will search /home/pi/Music and /home/pi for the file.
Web server needs permission to read from both directories or will exit with 404 file not found
Load your sound files in one of those directories
you can play a unlimited # of chimes named 1 2 3 .wav or .mp3 Or using the music play command you can play a file by name do not include the ext http://0.0.0.0/talk.php?play=bell will play bell.mp3
Once this is all working import the driver in hubitat. https://raw.githubusercontent.com/tmastersmart/pi-talk/main/pi_talk.groovy
save it and add a virtual device using this driver. Go to the driver set it up. Maker API is needed if you want to use the temp.php script enter the following url to your pi the name of your server url to check presence (your pi webserver index) url polling time the voice you want to use the language dialict you want. on the pi type 'espeak --voices' to get a list if you want to use relays enter the GPIO values 0=disabe Enter the sound file you want the siren to play
On the PI you need to setup chron . I use webmin on all my PI'S The PI I run this on is in my garden connected to a PA system to scare crows and Play outside alarms. Webadmin is what I use to control it. https://www.webmin.com/deb.html
Log rotation has permission problems so I wrote my own log lotation script
Add Chron for (its very easy on webmin)
Add chron to start talk.sh at bootup ( recomend creating a service instead of chron)
Add Chron to for temp.php to run every say 15 mins
Add Chron for temp-chart.sh to run at the same time as above but 1 min later
Add Chron for temp-rotate.php at mignight
php /var/www/html/temp.php > /dev/null 2>&1 (start at boot time)
bash /home/pi/talk.sh > /dev/null 2>&1 (every 10 or 15 mins)
bash /home/pi/temp-chart.php > /dev/null 2>&1 (run 1 min after the above runs)
php /var/www/html/temp-rotate.php > /dev/null 2>&1 (run at midnight)
Temp chart will create a file at /var/html/www/images/temp.png
you can load this from http://127.0.0.1/images/temp.png
I have this on my hub desktop.
You may modify espeak command the docs are here http://espeak.sourceforge.net/commands.html
If you need sounds just about any sound you can find online will work. see https://soundbible.com/tags-dog-bark.html For copyright reasions no mp3s included....
Any thoughts on which pins you need is welcome. More work will be done on this, As of last version Buttons do as follows Button 1 turns on 1 Button 2 turns off 1 Button 3 turns on 2 Button 4 turns off 2 Button 5 Pushes 3 and a delay on the PI turns it back off
temp.php needs to be edited to include your token for maker API. The device# for the driver and the device# for the maker
Planned: I need a way to notify my hub when events on the PI happen. I also need to buy a relay board so I can work on the GPIO button options. And I need to have seymour flags to interact with external scripts.
if you use this please post a comment here. So far I have no ideal if anyone else is even intrested. Im basicaly building this for myself right now. Once this is working if no one is intrested updates will only be internal.
http://www.winnfreenet.com/wp/2021/09/pi-talk-hubitat-to-rasbery-pi-talking-script/