diff --git a/README.md b/README.md
new file mode 100644
index 0000000..6402d1c
--- /dev/null
+++ b/README.md
@@ -0,0 +1,73 @@
+#Time lapse using phone
+
+**Goal** : upcycle an old phone into an IP Webcam and then make time lapse.
+
+**Hardware :**
+- and old phone
+- a strong stand for your phone, use clamps and metal sticks
+- a WIFI network
+- a PC always on (server, raspberry, old laptop)
+- free space on the PC hard drive
+
+**Requirement :**
+- a linux like system
+- python
+- ffmpeg
+
+
+##Installation of IP Webcam
+
+- get an old phone
+- setup Wifi on the phone
+
+**Install an IP Webcam software on it**
+
+  - using Google play : (not tested)
+      add your credential and install IPWebcam from google play
+
+   - without :
+       get the APK from :
+       \url{https://apkpure.com/ip-webcam/com.pas.webcam/versions}
+       On my android 6 I had to use  IP Webcam\_v1.13.25
+       \url{https://apkpure.com/ip-webcam/com.pas.webcam/download/608-APK?from=versions%2Fversion}
+
+
+##Using IP Webcam
+
+**On Mobile**
+- Setup the camera settings
+- Setup the network settings, notice the capture image URL  : \url{http://192.168.?.?:8080/photo.jpg}
+- Position the phone and start the server
+
+**On the PC**
+- From your PC open the capture image URL \url{http://192.168.?.?:8080/photo.jpg}
+- You should see if it works
+
+
+##Picture automation
+
+###Using the python script
+
+
+ $ python capture.py <directory> <delay> <resolution>
+
+current script take 1 picture and save it as last.jpg
+it also make a copy of this image, convert it to smaller resolution and save it with an timestamp name
+you can change line  resolution = "1280x960"
+
+##Produce the timelapse
+
+
+ $ bash makevideo.sh -d <directory> -s <rate> -p <prefix> -v <video_dir> -s <size>
+
+ ——————————————————————————————————————————————————————————————————————————————————
+ Opt | Variable      | Type  | Definition                           | Default value
+ ——————————————————————————————————————————————————————————————————————————————————
+ -d    directory       path    Directory path of images to convert    ./pics
+ -r    rate            int     Convert only 1/N images                1
+ -p    prefix          str     Images filename prefix.                ''
+ -v    video_dir       path    Directory path to store video file.    ./videos
+ -s    size            str     Images geometry.                       '1024x768'
+ ——————————————————————————————————————————————————————————————————————————————————
+
+Will save an mp4
diff --git a/makevideo.sh b/makevideo.sh
index da84505..75e2dc5 100755
--- a/makevideo.sh
+++ b/makevideo.sh
@@ -2,7 +2,7 @@
 usage(){
   cat << EOF
 
- $(basename $0) -d <directory> -s <rate> -p <prefix> -v <video_dir>
+ $(basename $0) -d <directory> -s <rate> -p <prefix> -v <video_dir> -s <size>
 
  ——————————————————————————————————————————————————————————————————————————————————
  Opt | Variable      | Type  | Definition                           | Default value
@@ -73,6 +73,9 @@ video_dir="$( realpath ${video_dir} 2>/dev/null )/"
 }
 [ -n "$( ls ${directory}/${prefix}* 2>/dev/null)" ] || panic "${directory}/${prefix}\* doesn't match any file. Exiting."
 
-
+# Set video file name
 date=$(date +%s)
-ffmpeg -pattern_type glob -i "pics/*.jpg" -filter:v "setpts=(${pts})*PTS"  -pix_fmt yuv420p -s "${size}"  -vcodec libx264  "${video_dir}/$date.mp4"
+video_file="${video_dir}$date.mp4"
+echo -e "\nSaving to video file $video_file.\n"
+
+ffmpeg -hide_banner -loglevel quiet -stats -pattern_type glob -i "pics/*.jpg" -filter:v "setpts=(${pts})*PTS"  -pix_fmt yuv420p -s "${size}"  -vcodec libx264  "${video_file}"