release 0.1

pi/power.py

@@ -0,0 +1,37 @@
+#!/usr/bin/python
+
+import RPi.GPIO as GPIO
+import time
+import requests
+
+# set gpio port numeration to bcm style
+GPIO.setmode(GPIO.BCM)
+
+#initialise gpio on pi 24 as input with an pull_up resistor
+GPIO.setup(24, GPIO.IN, pull_up_down=GPIO.PUD_UP)
+
+#initialise some startup values
+last = time.time()
+lpower = 10000
+
+#start busy loop
+while True:
+	#wait for a falling edge on gpio 24
+	GPIO.wait_for_edge(24, GPIO.FALLING)
+	
+	#get current time and calculate current power from difference
+	current = time.time()
+	diff = current - last
+	power = 1800 / diff
+	
+
+	#write into logfile
+	#if (power < lpower + 1800):
+	out = str(current) + ";" + str(round(power,0))	
+	#else:
+	#	out = str(current) + ";" + str(round(lpower,0))
+	payload = {"val": out}
+	r = requests.post("https://strom.ccc-ffm.de/get.php", data=payload, verify=False)
+	lpower = power
+	last = current
+GPIO.cleanup()

pi/powerpi

@@ -0,0 +1,61 @@
+#!/bin/sh
+ 
+### BEGIN INIT INFO
+# Provides: powerpi
+# Required-Start: $remote_fs $syslog
+# Required-Stop: $remote_fs $syslog
+# Default-Start: 2 3 4 5
+# Default-Stop: 0 1 6
+# Short-Description: Put a short description of the service here
+# Description: Put a long description of the service here
+### END INIT INFO
+ 
+# Change the next 3 lines to suit where you install your script and what you want to call it
+DIR=/srv/powerpi
+DAEMON=$DIR/power.py
+DAEMON_NAME=PowerPi
+ 
+# Add any command line options for your daemon here
+DAEMON_OPTS=""
+ 
+# This next line determines what user the script runs as.
+# Root generally not recommended but necessary if you are using the Raspberry Pi GPIO from Python.
+DAEMON_USER=root
+ 
+# The process ID of the script when it runs is stored here:
+PIDFILE=/var/run/$DAEMON_NAME.pid
+ 
+. /lib/lsb/init-functions
+ 
+do_start () {
+log_daemon_msg "Starting system $DAEMON_NAME daemon"
+start-stop-daemon --start --background --pidfile $PIDFILE --make-pidfile --user $DAEMON_USER --chuid $DAEMON_USER --startas $DAEMON -- $DAEMON_OPTS
+log_end_msg $?
+}
+do_stop () {
+log_daemon_msg "Stopping system $DAEMON_NAME daemon"
+start-stop-daemon --stop --pidfile $PIDFILE --retry 10
+log_end_msg $?
+}
+ 
+case "$1" in
+ 
+start|stop)
+do_${1}
+;;
+ 
+restart|reload|force-reload)
+do_stop
+do_start
+;;
+ 
+status)
+status_of_proc "$DAEMON_NAME" "$DAEMON" && exit 0 || exit $?
+;;
+*)
+echo "Usage: /etc/init.d/$DAEMON_NAME {start|stop|restart|status}"
+exit 1
+;;
+ 
+esac
+exit 0