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--- buster:porridge [2021/05/05 12:11] – [Daemon] slack
+++ buster:porridge [2021/05/05 15:14] (current) – slack
@@ Line 1: / Line 1: @@
+**Deprecated: use [[https://github.com/repent/porridge/blob/master/README.md|README.md]].**
 Ensure your user is a member of ''gpio''.
@@ Line 14: / Line 16: @@
 ====== Installation ======
+===== System configuration =====
+In ''/boot/config.txt'', a ''dtoverlay'' line has to be added for every pin to which one or more 1-wire thermometers are added:
+  # 1-Wire interface for 18B20 thermometers (can add as many of these as you like, in theory)
+  # 3.21: having difficulty with gpiopin 4
+  # For the breadboard setup (4.21):
+  dtoverlay=w1-gpio,gpiopin=5
+  dtoverlay=w1-gpio,gpiopin=13
+  # For the downstairs PCB (first version, tested working 20.4.21):
+  #dtoverlay=w1-gpio,gpiopin=5
+  #dtoverlay=w1-gpio,gpiopin=10
+And reboot to take effect.
 ===== Daemon =====
+**The daemon relies on ''~/.porridge'' for basic configuration.  If you don't make sure that this is in place, then ''systemd'' will log to ''/var/log/daemon.log'' by default.**  (And it will try localhost:80 for the API server.)
 The daemon uses systemd.  This means that porridged.system needs to be linked from ''/etc/systemd/system/porridged.service''.
@@ Line 21: / Line 41: @@
 To enable the daemon from boot, ''systemctl enable porridged'' as root.  For this to work, the .service needs an ''[Install]'' section that includes a "target" -- a point in the boot process at which it should be loaded.  ''systemctl get-default'' tells you the default, ''systemctl list-units --type=targets'' lists all of the options.  [[https://www.pragmaticlinux.com/2020/08/raspberry-pi-startup-script-using-systemd/|More]].
-    ln -s /home/slack/porridge/porridged.service /etc/systemd/system/
+  ln -s /home/slack/porridge/porridged.service /etc/systemd/system/
-    systemctl daemon-reload
+  systemctl daemon-reload
-    systemctl enable porridged
+  systemctl enable porridged
-    systemctl status porridged
+  systemctl status porridged
-    systemctl start porridged
+  systemctl start porridged
 The ''.service'' needs to use the RVM wrapper script, [[https://rvm.io/integration/cron|as if it were being launched from ''cron'']].  This needs to be updated with newer versions of ruby (or new gemsets).
@@ Line 39: / Line 59: @@
 ===== Updating rails =====
+====== Troubleshooting ======
+  * Thermometers are plugged in but none are recognised
+    * Have you set ''dtoverlay'' correctly?