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diff --git a/DeepSleep/Pet_tracker_3/post_tracing/gpx2gpsapwifi.lua b/DeepSleep/Pet_tracker_3/post_tracing/gpx2gpsapwifi.lua
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--- /dev/null
+++ b/DeepSleep/Pet_tracker_3/post_tracing/gpx2gpsapwifi.lua
@@ -0,0 +1,115 @@
+-- parse les données GPX avec les données des ap wifi du NodeMCU pour les 
+-- cooréler  en fonction du temps afin de pouvoir géolocaliser les ap wifi 
+
+print("\n gpx2gpsapwifi.lua   zfzf200730.1715   \n")
+
+
+--[[
+1
+    time = 123
+    lon = 234
+    lat = 345
+2
+    time = 456
+    lon = 567
+    lat = 678
+]]
+
+
+function tprint(t)    
+   for key,value in pairs(t) do
+       print(key, value)
+   end
+end
+
+gpx_data = {} 
+
+gpx_data[1] = {time = 123, lon = 234, lat = 345}
+gpx_data[2] = {time = 456, lon = 567, lat = 678}
+
+print(gpx_data[1].time)
+print(gpx_data[1].lon)
+print(gpx_data[2].lat)
+
+tprint(gpx_data[1])
+
+for i=1, #gpx_data do
+    print(i)
+    tprint(gpx_data[i])
+end
+
+
+
+function zprintline()
+    print(string.sub(zline,1,string.len(zline)-1))
+    zline = file.readline()
+    if zline == nil then
+        ztmr_cat1:unregister()
+        file.close(zfilei)
+    end
+end
+
+function zdatetime2unixtime(zdatetime)
+    -- source: https://stackoverflow.com/questions/4105012/convert-a-string-date-to-a-timestamp
+    -- https://www.unixtimestamp.com/index.php
+    -- Assuming a date pattern like: yyyy-mm-ddThh:mm:ss
+    local pattern = "(%d+)-(%d+)-(%d+)T(%d+):(%d+):(%d+)"
+    -- local timeToConvert = "2020-07-27T20:03:27"
+    local timeToConvert = zdatetime
+    local runyear, runmonth, runday, runhour, runminute, runseconds = timeToConvert:match(pattern)
+    local convertedTimestamp = os.time({year = runyear, month = runmonth, day = runday, hour = runhour, min = runminute, sec = runseconds})
+    return (convertedTimestamp+2*3600)
+end
+
+function gpx2tab(zfile_gpx)    
+    i = 1
+    
+    for line in io.lines(zfile_gpx) do
+        print(line)
+
+        -- <trkpt lat="46.5421696" lon="6.5749532">
+        if string.find(line, "<trkpt ") then
+            print("coucou gps")
+            -- récupère la longitude
+            p1, p2 = string.find(line, "lat=\"")
+            -- print(p1,p2)
+            p3 = string.find(line, "\"", p2+1)
+            -- print(p3)
+            zlat = string.sub(line,p2+1,p3-1)
+            print("lat: " ..zlat)
+            -- récupère la latitude
+            p1, p2 = string.find(line, "lon=\"")
+            -- print(p1,p2)
+            p3 = string.find(line, "\"", p2+1)
+            -- print(p3)
+            zlon = string.sub(line,p2+1,p3-1)
+            print("lon: " ..zlon)
+        end
+        
+        -- <time>2020-07-27T20:03:27Z</time>
+        if string.find(line, "<time>") then
+            print("coucou time")
+            -- récupère le temps
+            p1, p2 = string.find(line, "<time>")
+            -- print(p1,p2)
+            p3 = string.find(line, "Z</time>", p2+1)
+            -- print(p3)
+            ztime = string.sub(line,p2+1,p3-1)
+            print("time: " ..ztime)
+            zunixtime = zdatetime2unixtime(ztime)
+            print("unixtime: " ..zunixtime)
+            
+            
+            
+        end
+        
+
+        i = i + 1
+        if i > 20 then break end
+    end
+    
+    
+end
+
+gpx2tab("osman_2020-07-27_22-03_Mon.gpx")
+-- print(zdatetime2unixtime("2020-07-27T20:03:27"))