display error info when no signal found

sdcard/c480x272/SCRIPTS/TOOLS/Model Locator (by RSSI).lua

@@ -89,35 +89,32 @@ end
 
 local function getSignalValues()
 
-    -- try regular RSSI
+    -- try regular Frsky RSSI
     local fieldinfo = getFieldInfo("RSSI")
     if fieldinfo then
         local v = getValue("RSSI")
         log("RSSI: " .. v)
-        lcd.drawText(3, 30, "Signal: RSSI", 0)
-        return v, 0, 100
+        return v, 0, 100, "Using signal: Frsky RSSI", nil
     end
 
-    -- try expressLRS
+    -- try expressLRS antenna 1
     local fieldinfo = getFieldInfo("1RSS")
     if fieldinfo then
         local v = getValue("1RSS")
-        lcd.drawText(3, 30, "Signal: 1RSS", 0)
         if v == 0 then
             v = -115
         end
-        return v, -115, 20
+        return v, -115, 20, "Using signal: elrs 1RSS", "Set tx power to 25mW non dynamic"
     end
 
-    -- try expressLRS
+    -- try expressLRS antenna 2
     local fieldinfo = getFieldInfo("2RSS")
     if fieldinfo then
         local v = getValue("2RSS")
-        lcd.drawText(3, 30, "Signal: 2RSS", 0)
         if v == 0 then
             v = -115
         end
-        return v, -115, 20
+        return v, -115, 20, "Using signal: elrs 2RSS", "Set tx power to 25mW non dynamic"
     end
 
     ---- try UNI-ACSST firmware VFR
@@ -144,43 +141,36 @@ end
 
 local function main(event, touchState)
     lcd.clear()
-
-    -- background
-    --lcd.drawBitmap(img, 0, 20, 30)
-    lcd.drawBitmap(img, 250, 50, 40)
+    lcd.drawBitmap(img, LCD_W-120, 30, 20)
 
     -- Title
-    lcd.drawText(3, 3, "RSSI Model Locator", 0)
-    lcd.drawText(LCD_W - 50, 3, "ver: " .. app_ver .. "", SMLSIZE)
+    lcd.drawFilledRectangle(0,0, LCD_W, 30, BLACK)
+    lcd.drawFilledRectangle(0,LCD_H-25, LCD_W, 25, GREY)
+    lcd.drawText(10, 3, "RSSI Model Locator", WHITE)
+    lcd.drawText(LCD_W - 50, 3, "ver: " .. app_ver .. "", SMLSIZE + GREEN)
 
-    local signalValue, signalMin, signalMax = getSignalValues()
+    local signalValue, signalMin, signalMax, line1, line2 = getSignalValues()
     -- log(signalValue)
     if signalValue == nil then
         lcd.drawText(30, 50, "No signal found (expected: RSSI/1RSS/2RSS)", 0 + BLINK)
         return 0
     end
+    lcd.drawText(3, 60, line2 or "", RED)
+    lcd.drawText(10, LCD_H-22, line1, WHITE)
+
     log("signalValue:" .. signalValue .. ", signalMin: " .. signalMin .. ", signalMax: " .. signalMax)
 
-    --if (rssi > 42) then
-    --  lcd.setColor(CUSTOM_COLOR, YELLOW) -- RED / YELLOW
-    --else
-    --  lcd.setColor(CUSTOM_COLOR, RED) -- RED / YELLOW
-    --end
     local signalPercent = 100 * ((signalValue - signalMin) / (signalMax - signalMin))
-    --myColor = getRangeColor(signalPercent, 0, 100)
-    --lcd.setColor(CUSTOM_COLOR, myColor)
     lcd.setColor(CUSTOM_COLOR, getRangeColor(signalPercent, 0, 100))
 
     -- draw current value
-    lcd.drawNumber(180, 30, signalValue, XXLSIZE + CUSTOM_COLOR)
-    lcd.drawText(260, 70, "db", 0 + CUSTOM_COLOR)
+    lcd.drawNumber(40, 100, signalValue, XXLSIZE + CUSTOM_COLOR)
+    lcd.drawText(130, 140, "db", 0 + CUSTOM_COLOR)
 
     -- draw main bar
-    --lcd.setColor(CUSTOM_COLOR, YELLOW) -- RED / YELLOW
-    local xMin = 0
-    local yMin = 270
-    local xMax = 480
-    local yMax = 200
+    local xMin = 10
+    local yMin = LCD_H - 30
+    local xMax = LCD_W
     local h = 0
     local rssiAsX = (signalPercent * xMax) / 100
     log("signalPercent:" .. signalPercent .. ", signalValue: " .. signalValue .. ", rssiAsX: " .. rssiAsX)
@@ -190,9 +180,6 @@ local function main(event, touchState)
         lcd.drawFilledRectangle(xx, yMin - h, 15, h, CUSTOM_COLOR)
     end
 
-    -- draw rectangle
-    --lcd.drawFilledRectangle(0, 250, signalPercent * 4.8, 20, GREY_DEFAULT)
-
     -- beep
     if getTime() >= nextPlayTime then
         playFile("/SCRIPTS/TOOLS/Model Locator (by RSSI).wav")