changed from a normal RGB led to neopixel ws2812b

README.txt

@@ -4,15 +4,21 @@ the button has an RGB led to show status
 
 how to install
 ==============
+# login as user pi
+sudo apt-get install unclutter xdotool git-core screen imagemagick
+cd ~
+git clone https://github.com/syn2cat/doorbuzz.git
+
 put into /etc/rc.local the following line:
-su pi -c '/home/pi/buzzctrl.sh' &
+su pi -c '/home/pi/doorbuzz/buzzctrl.sh' &
 
 sudo vi /etc/xdg/lxsession/LXDE/autostart
 remove screensaver
-sudo apt-get install unclutter xdotool git-core screen imagemagick
+cd ~
 git clone git://git.drogon.net/wiringPi
 cd wiringPi
 ./build
+cd ~
 
 mkdir -p /home/pi/.config/lxsession/LXDE/
 cat > /home/pi/.config/lxsession/LXDE/autostart <<"EOF"
@@ -20,9 +26,18 @@ cat > /home/pi/.config/lxsession/LXDE/autostart <<"EOF"
 @xset -dpms
 @xset s noblank
 @unclutter -display :0 -noevents -grab
-@./videoplayer.sh
+@./doorbuzz/videoplayer.sh
 EOF
 
+https://learn.adafruit.com/neopixels-on-raspberry-pi/software
+sudo apt-get install build-essential python-dev git scons swig
+git clone https://github.com/jgarff/rpi_ws281x.git
+cd rpi_ws281x
+scons
+cd python
+sudo python setup.py install
+
+cd doorbuzz
 
 connect the button and LED to pins as shown in buzzctrl.sh
 create a file "secret.txt" containing the http://user:pass@10.1.1.xx part of the URL

buzzctrl.sh

@@ -1,57 +1,38 @@
 #!/bin/bash
+# led is not neopixel, so use the python lib for that
 BUTTONPIN=25
-REDLEDPIN=23
+SHOWLEDPRG="sudo python /home/pi/doorbuzz/setneocolor.py"
-GREENLEDPIN=18
-BLUELEDPIN=24
 BUZZERURL="$(cat "$(dirname "$0")"/secret.txt)/state.xml?relay1State=2&pulseTime1=5"
 BUZZERSTATUSURL="$(cat "$(dirname "$0")"/secret.txt)/state.xml"
-
+ATTENUATION=4
 # file secret.txt should contain username:password
 
 # install by putting into /etc/rc.local
-# su pi -c '/home/pi/buzzctrl.sh' &
+# su pi -c '/home/pi/doorbuzz/buzzctrl.sh' &
 
 echo "Initializing hardware"
 # the button
 gpio -g mode $BUTTONPIN up  
 gpio -g mode $BUTTONPIN in
-# R
-gpio -g mode $REDLEDPIN out
-# G
-gpio -g mode $GREENLEDPIN out
-# B
-gpio -g mode $BLUELEDPIN out
 
 pulseon() {
-  pin=$1
+  red=$1
-  value=0
+  green=$2
-  valueinc=64
+  blue=$3
-  gpio -g mode $pin pwm
+  $SHOWLEDPRG pulse $((red/ATTENUATION)) $((green/ATTENUATION)) $((blue/ATTENUATION)) </dev/null >/dev/null 2>&1 &
-  while true
+  echo $!
-  do
-    gpio -g pwm $pin $value
-    value=$((value+valueinc))
-    if [ $value -gt 1023 ] || [ $value -lt 0 ]
-    then
-      valueinc=$((0-valueinc))
-      value=$((value+valueinc))
-    fi 
-    sleep 0.2
-  done
 }
 pulseoff() {
-  pin=$1
+  if [ $(ps -edf | grep pulse | grep "$1"|wc -l) -gt 0 ]
-  kill $2
+  then
-  gpio -g mode $pin out
+    sudo kill "$1"
-  gpio -g write $pin 0
+  fi
 }
 ledcolor() {
   red=$1
   green=$2
   blue=$3
-  gpio -g write $REDLEDPIN $red 
+  $SHOWLEDPRG set $((red/ATTENUATION)) $((green/ATTENUATION)) $((blue/ATTENUATION))
-  gpio -g write $GREENLEDPIN $green 
-  gpio -g write $BLUELEDPIN $blue 
 }
 declare -a morse
 morse[0]="-----"
@@ -69,68 +50,54 @@ morseled() {
 echo $message
   msglen=${#message}
   pos=0
+  morsecode=""
   while [ $pos -lt $msglen ]
   do
-    morsecode=${morse[${message:${pos}:1}]}
+    morsecode="$morsecode ${morse[${message:${pos}:1}]}"
     pos=$((pos+1))
 echo $morsecode  
-    morselen=${#morsecode} 
-    morsepos=0
-    while [ $morsepos -lt $morselen ]
-    do
-      ledcolor $2 $3 $4
-#echo "c($morsepos)=${morsecode:${morsepos}:1}"
-      if [ "${morsecode:${morsepos}:1}" = "." ]
-      then
-#echo "."
-        sleep 0.1
-      else
-#echo "-"
-        sleep 0.2
-      fi
-      ledcolor 0 0 0
-      sleep 0.1
-      morsepos=$((morsepos+1))
-    done
-    sleep 0.2
-echo
   done
+  red=$2
+  green=$3
+  blue=$4
+  $SHOWLEDPRG morse $((red/ATTENUATION)) $((green/ATTENUATION)) $((blue/ATTENUATION)) "$morsecode"
+
+echo
 }
 
 echo "morsing IP"
-ledcolor 1 1 1
+ledcolor 255 255 255
 sleep 3
 ledcolor 0 0 0
 sleep 1
-morseled "$(hostname -I|awk -F. '{sub(" ","",$NF);printf $NF}')" 1 0 0
+morseled "$(hostname -I|awk -F. '{sub(" ","",$NF);printf $NF}')" 255 0 0
-ledcolor 1 1 1
+ledcolor 255 255 255
 sleep 1
 echo "Main loop"
 while true
 do
-  ledcolor 0 1 1
+  ledcolor 0 255 255
-  pulseon $GREENLEDPIN &
+  pulsepid=$(pulseon 0 0 255 )
-  pulsepid=$!
+  trap "pulseoff $pulsepid;ledcolor 0 0 0;exit" 1 2 3
-  trap "pulseoff $GREENLEDPIN $pulsepid;ledcolor 0 0 0;exit" 1 2 3
   gpio -g wfi $BUTTONPIN falling
   while [ $(gpio -g read $BUTTONPIN) != 0 ]
   do
     gpio -g wfi $BUTTONPIN falling
   done
-  pulseoff $GREENLEDPIN $pulsepid
+  pulseoff $pulsepid
-  ledcolor 0 1 1
+  ledcolor 0 255 255
   echo "Pushiii"
   wget -O - -S --timeout=1 --tries=1 "$BUZZERURL" 2>&1
   ret=$?
   if [ $ret -ne 0 ] 
   then
-    morseled "$ret" 1 0 0
+    morseled "$ret" 255 0 0
   else
     while wget -O - --timeout=1 --tries=1 $BUZZERSTATUSURL|grep '<relay1state>1</relay1state>'
     do
-      ledcolor 0 1 0
+      ledcolor 0 255 0
       sleep 0.9
-      ledcolor 0 1 1
+      ledcolor 0 255 255
       sleep 0.1
     done
   fi

setneocolor.py

@@ -0,0 +1,62 @@
+#!/usr/bin/python
+# sets color of first neo pixel
+from __future__ import division
+import time
+import sys
+from math import *
+
+from neopixel import *
+
+# LED strip configuration:
+LED_COUNT      = 1       # Number of LED pixels.
+LED_PIN        = 18      # GPIO pin connected to the pixels (must support PWM!).
+LED_FREQ_HZ    = 800000  # LED signal frequency in hertz (usually 800khz)
+LED_DMA        = 5       # DMA channel to use for generating signal (try 5)
+LED_BRIGHTNESS = 100       # Set to 0 for darkest and 255 for brightest
+LED_INVERT     = False   # True to invert the signal (when using NPN transistor level shift)
+
+# Main program logic follows:
+if __name__ == '__main__':
+        # Create NeoPixel object with appropriate configuration.
+        strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS)
+        # Intialize the library (must be called once before other functions).
+        strip.begin()
+        r=int(sys.argv[2])
+        g=int(sys.argv[3])
+        b=int(sys.argv[4])
+	if(sys.argv[1] == "set"):
+          print "Color set to: ",r,g,b
+          strip.setPixelColor(0, Color(r,g,b))
+          strip.show()
+        if(sys.argv[1] == "morse"):
+	  print "Morsing with: ",r,g,b
+	  speed=10
+	  morsecode=sys.argv[5]
+	  for c in morsecode:
+	    if c==".":
+              strip.setPixelColor(0, Color(r,g,b))
+	      strip.show() 
+	      time.sleep(0.2)
+              strip.setPixelColor(0, Color(0,0,0))
+	      strip.show() 
+	      time.sleep(0.2)
+	    if c=="-":
+              strip.setPixelColor(0, Color(r,g,b))
+	      strip.show() 
+	      time.sleep(0.7)
+              strip.setPixelColor(0, Color(0,0,0))
+	      strip.show() 
+	      time.sleep(0.2)
+	    if c==" ":
+              strip.setPixelColor(0, Color(0,0,0))
+	      strip.show() 
+	      time.sleep(1)
+	if(sys.argv[1] == "pulse"):
+	  print "Pulsing with: ",r,g,b
+	  pulsewidth=50
+	  while True:
+	    for i in range(pulsewidth):
+	      trigo=sin(i/pulsewidth*pi)
+	      strip.setPixelColor(0, Color(int(r*trigo),int(g*trigo),int(b*trigo)))
+              strip.show()
+              time.sleep(50/1000.0)

videoplayer.sh

@@ -13,7 +13,7 @@ do
   then # test on false, so in case of network fail, it defaults to playing
     sleep 60
   else
-    ls *mp4 |
+    ls ~/*mp4 |
     while read video
     do
       omxplayer "$video" </dev/null