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Changed TXT to GPX logfile #55

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Changed TXT to GPX logfile #55

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6a84ee5
Changed TTXT to GPX logfile
rotura Nov 9, 2025
203beee
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rotura Nov 9, 2025
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181 changes: 147 additions & 34 deletions x7_x9lite/GPSx9L.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -29,10 +29,9 @@ Setup a "screen (DIsplay 13/13)" and select GPS.lua

################################################################################]]

log_filename = "/LOGS/GPSpositions.txt"

local gpsLAT = 0
local gpsLON = 0
local gpsHdg = 0
local gpsLAT_H = 0
local gpsLON_H = 0
local gpsPrevLAT = 0
Expand All @@ -42,11 +41,12 @@ local gpsALT = 0
local gpsSpeed = 0
local gpssatId = 0
local gpsspeedId = 0
local gpsHdgId = 0
local gpsaltId = 0
local gpsFIX = 0
local gpsDtH = 0
local gpsTotalDist = 0
local log_write_wait_time = 10
local log_write_wait_time = 100
local old_time_write = 0
local update = true
local reset = false
Expand All @@ -59,6 +59,19 @@ local coordinates_current = 0
local old_time_write2 = 0
local wait = 100

-- GPX save
local armed
local chArmedId
local waypoints_recorded = 0
local gpx_path = ""
local log_file = nil

-- Pop up save GPX
local popup_active = false
local selec = 1 -- 0 = Yes, 1 = No
local result = "No"
local mid = LCD_W / 2 -- Center alignment for LCD display

local function rnd(v,d)
if d then
return math.floor((v*10^d)+0.5)/(10^d)
Expand All @@ -80,35 +93,91 @@ local function SecondsToClock(seconds)
end
end

local function write_gps_file_header()
local dt = getDateTime()
local timestamp = string.format(
"%d-%02d-%02dT%02d:%02d:%02d",
tonumber(dt.year), tonumber(dt.mon ), tonumber(dt.day),
tonumber(dt.hour), tonumber(dt.min ), tonumber(dt.sec))

io.write(log_file, "<?xml version='1.0' encoding='UTF-8'?>\n")
io.write(log_file, "<gpx version='1.1' creator='EdgeTX Lua Script' xmlns='http://www.topografix.com/GPX/1/1'>\n")
io.write(log_file, string.format("<metadata><time>%s</time></metadata>\n", timestamp))
io.write(log_file, string.format("<trk><name>Flight Log</name><trkseg>\n", timestamp))
end

local function write_gps_file_footer()
io.write(log_file, "</trkseg></trk>\n</gpx>")
end

-- Draw popup for savig GPX
local function drawPopup()
-- Popup
lcd.drawFilledRectangle(25, 15, mid+10, 40, ERASE)
lcd.drawRectangle(25, 15, mid+10, 40, FORCE)
lcd.drawText(mid - 30, 20, "¿Save GPX?", 0)
lcd.drawText(mid - 25, 38, "Yes", selec == 0 and INVERS or 0)
lcd.drawText(mid + 5, 38, "No", selec == 1 and INVERS or 0)
end

local function stopLog()
if waypoints_recorded < 6 then -- no point in storing empty (or very small) logs
io.close(log_file)
del(gpx_path)
result = "Exit"
else
write_gps_file_footer()
io.close(log_file)
result = "Done"
end

log_file = nil
gpx_path = ""
waypoints_recorded = 0
end

local function write_log()

now = getTime()
if old_time_write + log_write_wait_time < now then

-- Generate GPX file
armed = getValue(chArmedId) > 0

ctr = ctr + 1
time_power_on = SecondsToClock(getGlobalTimer()["session"])

--write logfile
file = io.open(log_filename, "a")
io.write(file, coordinates_current ..",".. time_power_on ..", ".. gpsSATS..", ".. gpsALT ..", ".. gpsSpeed, "\r\n")
io.close(file)

if ctr >= 99 then
ctr = 0
--clear log
file = io.open(log_filename, "w")
io.write(file, "Number,LAT,LON,radio_time,satellites,GPSalt,GPSspeed", "\r\n")
io.close(file)
if log_file == nil and armed and selec == 0 then
result="?"
local dt = getDateTime()
local timestamp = string.format(
"%d-%02d-%02d_%02d_%02d_%02d",
tonumber(dt.year), tonumber(dt.mon), tonumber(dt.day),
tonumber(dt.hour), tonumber(dt.min), tonumber(dt.sec))

gpx_path = string.format("/LOGS/gps_log_%s.gpx", timestamp)
log_file = io.open(gpx_path, "a")
waypoints_recorded = 0

write_gps_file_header()
end

if not armed and log_file ~= nil and selec == 0 then
stopLog()
end

--reopen log for appending data
file = io.open(log_filename, "a")
end
if armed and selec == 0 and old_time_write + log_write_wait_time < now then
local dt = getDateTime()
local timestamp = string.format(
"%d-%02d-%02dT%02d:%02d:%02d",
tonumber(dt.year), tonumber(dt.mon), tonumber(dt.day),
tonumber(dt.hour), tonumber(dt.min), tonumber(dt.sec))

io.write(log_file, string.format(
"<trkpt lat='%f' lon='%f'><ele>%f</ele><sat>%f</sat><magvar>%f</magvar><time>%s</time></trkpt>\n",
gpsLAT, gpsLON, gpsALT, gpsSATS, gpsHdg, timestamp))

waypoints_recorded = waypoints_recorded + 1
old_time_write = now
end
end


local function getTelemetryId(name)
field = getFieldInfo(name)
if field then
Expand Down Expand Up @@ -136,6 +205,8 @@ local function init()
gpsId = getTelemetryId("GPS")
--number of satellites crossfire
gpssatId = getTelemetryId("Sats")
-- Magnetic Orientation
gpsHdgId = getTelemetryId("Hdg")

--get IDs GPS Speed and GPS altitude
gpsspeedId = getTelemetryId("GSpd") --GPS ground speed m/s
Expand All @@ -146,15 +217,17 @@ local function init()

--if Stats can't be read, try to read Tmp2 (number of satellites SBUS/FRSKY)
if (gpssatId == -1) then gpssatId = getTelemetryId("Tmp2") end
chArmedId = getFieldInfo('ch5').id
end

local function background()

--####################################################################
--get Latitude, Longitude, Speed and Altitude
--get Latitude, Longitude, Speed, Hdg and Altitude
--####################################################################
gpsLatLon = getValue(gpsId)

gpsHdg = getValue(gpsHdgId)

if (type(gpsLatLon) == "table") then
gpsLAT = rnd(gpsLatLon["lat"],6)
gpsLON = rnd(gpsLatLon["lon"],6)
Expand Down Expand Up @@ -196,17 +269,17 @@ local function background()
--status message "guess"
-- 2D Mode - A 2D (two dimensional) position fix that includes only horizontal coordinates. It requires a minimum of three visible satellites.)
-- 3D Mode - A 3D (three dimensional) position fix that includes horizontal coordinates plus altitude. It requires a minimum of four visible satellites.
if (tonumber(gpsSATS) < 2) then gpsFIX = "no GPS fix" end
if (tonumber(gpsSATS) >= 3) and (tonumber(gpsSATS) <= 4) then gpsFIX = "GPS 2D fix" end
if (tonumber(gpsSATS) >= 5) then gpsFIX = "GPS 3D fix" end
if (tonumber(gpsSATS) < 2) then gpsFIX = "no fix" end
if (tonumber(gpsSATS) >= 3) and (tonumber(gpsSATS) <= 4) then gpsFIX = "2D fix" end
if (tonumber(gpsSATS) >= 5) then gpsFIX = "3D fix" end


--####################################################################
--get calculate distance from home and write log
--####################################################################
if (tonumber(gpsSATS) >= 5) then

if (gpsLAT ~= gpsPrevLAT) and (gpsLON ~= gpsPrevLON) then
if (gpsLAT ~= gpsPrevLAT) or (gpsLON ~= gpsPrevLON) then

if (gpsLAT_H ~= 0) and (gpsLON_H ~= 0) then

Expand All @@ -215,7 +288,7 @@ local function background()
gpsDtH = string.format("%.2f",gpsDtH)

--total distance traveled
if (gpsPrevLAT ~= 0) and (gpsPrevLON ~= 0) and (gpsLAT ~= 0) and (gpsLON ~= 0)then
if (gpsPrevLAT ~= 0) and (gpsPrevLON ~= 0) and (gpsLAT ~= 0) and (gpsLON ~= 0)then
--print("GPS_Debug_Prev", gpsPrevLAT,gpsPrevLON)
--print("GPS_Debug_curr", gpsLAT,gpsLON)

Expand All @@ -230,10 +303,12 @@ local function background()

gpsPrevLAT = gpsLAT
gpsPrevLON = gpsLON

write_log()
end
end
end

if (tonumber(gpsSATS) >= 3) then
write_log()
end


end
Expand Down Expand Up @@ -277,7 +352,13 @@ local function run(event)
--update screen data
if update == true then

lcd.drawText(32,1,gpsFIX ,SMLSIZE + INVERS)
lcd.drawText(32,1,gpsFIX ,SMLSIZE + INVERS)
lcd.drawText(25+(8*5),1,"Save GPX: " ,SMLSIZE + INVERS)
if waypoints_recorded > 0 then
lcd.drawText(27+(6*5)+(10*5),1,waypoints_recorded ,SMLSIZE + INVERS)
else
lcd.drawText(27+(6*5)+(10*5),1,result ,SMLSIZE + INVERS)
end
lcd.drawText(22,14, gpsSATS, SMLSIZE)
lcd.drawText(60,10, gpsDtH, SMLSIZE)
lcd.drawText(73,20, "km" , SMLSIZE)
Expand All @@ -297,7 +378,13 @@ local function run(event)
--blink if telemetry stops
elseif update == false then

lcd.drawText(32,1,"no GPS data available" ,SMLSIZE + INVERS)
lcd.drawText(32,1,"no GPS" ,SMLSIZE + INVERS)
lcd.drawText(25+(8*5),1,"Save GPX: " ,SMLSIZE + INVERS)
if waypoints_recorded > 0 then
lcd.drawText(27+(6*5)+(10*5),1,waypoints_recorded ,SMLSIZE + INVERS)
else
lcd.drawText(27+(6*5)+(10*5),1,result ,SMLSIZE + INVERS)
end
lcd.drawText(22,14, gpsSATS, SMLSIZE + INVERS + BLINK )
lcd.drawText(60,10, gpsDtH , SMLSIZE + INVERS + BLINK)
lcd.drawText(73,20, "km" , SMLSIZE)
Expand All @@ -310,6 +397,32 @@ local function run(event)
lcd.drawText(20,56, coordinates_current, SMLSIZE + INVERS + BLINK)

end
if not popup_active then
if event == EVT_ENTER_BREAK then
popup_active = true
result="?"
end
else
drawPopup()
-- Popup events
if event == EVT_PLUS_BREAK or event == EVT_ROT_RIGHT then
selec = 1
elseif event == EVT_MINUS_BREAK or event == EVT_ROT_LEFT then
selec = 0
elseif event == EVT_ENTER_BREAK then
if selec == 0 then
result = "Yes"
else
result = "No"
if waypoints_recorded > 0 then
stopLog()
end
end
popup_active = false
elseif event == EVT_EXIT_BREAK then
popup_active = false
end
end
end

return {init=init, run=run, background=background}