add

README.md

@@ -11,7 +11,8 @@ Ambient temperature is read from `/sys/bus/w1/devices` so you must have 1wire en
 # compilation and usage
 `make` or `gcc main.c -o measurer` \
 Should throw no warnings \
-`./measurer <output>`
+`./measurer <output>` \
+You can schedule this with [systemd](/src/branch/master/systemd)
 
 # why
 like heavy ahh like databases grafana etc go away you're a performance monitor why'd you reduce performance

systemd/measurer.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=measurer
+
+[Service]
+User=pi
+Group=pi
+WorkingDirectory=/home/pi/measurer
+ExecStart=/home/pi/measurer/measurer /home/pi/measurer/data.csv
+
+[Install]
+WantedBy=multi-user.target

systemd/measurer.timer

@@ -0,0 +1,10 @@
+[Unit]
+Description=Say Hello every 10 seconds
+
+[Timer]
+OnBootSec=10
+OnUnitActiveSec=10
+AccuracySec=1
+
+[Install]
+WantedBy=timers.target