Add setup instructions

README.md

@@ -2,8 +2,70 @@
 
 This script plays a fake dog bark through speakers to scare people away from your house.
 
+## Setup
+
+Set up the Pi:
+
+```
+$ sudo usermod -aG audio tanner
+$ sudo apt update
+$ sudo apt install python3 python3-pip python3-virtualenv libsdl2-mixer-2.0-0 supervisor
+$ sudo bash -c 'echo 0 > /proc/sys/kernel/hung_task_timeout_secs'
+```
+
+Edit /etc/pulse/daemon.conf:
+
+```text
+default-fragments = 5
+default-fragment-size-msec = 2
+```
+
+Install woof:
+
+```
+$ git clone https://git.tannercollin.com/tanner/woof.git
+$ cd woof/
+$ virtualenv -p python3 env
+$ . env/bin/activate
+(env) $ pip install -r requirements.txt
+```
+
+Run manually to test it:
+```
+$ . env/bin/activate
+(env) $ python main.py
+```
+
+Ignore "(snd_pcm_recover) underrun occurred" errors.
+
+To start automatically, create `/etc/supervisor/conf.d/woof.conf`:
+
+```
+[program:woof]
+user=tanner
+directory=/home/tanner/woof
+command=/home/tanner/woof/env/bin/python -u main.py
+stopasgroup=true
+stopsignal=INT
+autostart=true
+autorestart=true
+stderr_logfile=/dev/null
+#stderr_logfile_maxbytes=10MB
+stdout_logfile=/var/log/woof.log
+stdout_logfile_maxbytes=10MB
+```
+
+Apply changes:
+
+```
+$ sudo supervisorctl reread; sudo supervisorctl reload
+$ sudo supervisorctl status
+$ tail -f /var/log/woof.log
+```
+
 ## License
 
 This program is free and open-source software licensed under the GNU Affero General Public License. Please see the `LICENSE` file for details.
 
 That means you have the right to study, change, and distribute the software and source code to anyone and for any purpose. You deserve these rights.
+

main.py

@@ -43,7 +43,7 @@ async def play_sound(filename):
 
 async def barkbark(sound):
     global COOLDOWN
-    if time.time() - COOLDOWN < 15.0:
+    if time.time() - COOLDOWN < 20.0:
         logging.info('Cooldown skipping.')
         return
     COOLDOWN = time.time()
@@ -84,7 +84,7 @@ async def process_mqtt(message):
 
 async def fetch_mqtt():
     await asyncio.sleep(3)
-    async with Client('192.168.0.100') as client:
+    async with Client('192.168.0.106') as client:
         async with client.filtered_messages('iot/cameras') as messages:
             await client.subscribe('#')
             async for message in messages: