mobile station: person icon, speed in km/h

pr133.ino

@@ -43,6 +43,8 @@ struct Station {
   float wxTemp;
   int wxHumidity;
   float wxPressure;
+  int speed;
+  bool isMobile;
 };
 
 Station stations[MAX_STATIONS];
@@ -130,6 +132,21 @@ bool parseWxData(const String& body, float& tempC, int& humidity, float& pressur
   return found;
 }
 
+int parseSpeed(const String& body) {
+  int len = body.length();
+  if (len > 80) len = 80;
+  for (int i = 0; i < len - 7; i++) {
+    if (isDigit(body[i]) && isDigit(body[i + 1]) && isDigit(body[i + 2]) &&
+        body[i + 3] == '/' &&
+        isDigit(body[i + 4]) && isDigit(body[i + 5]) && isDigit(body[i + 6])) {
+      int c = body.substring(i, i + 3).toInt();
+      int s = body.substring(i + 4, i + 7).toInt();
+      if (c >= 0 && c <= 360 && s >= 0 && s <= 999) return s;
+    }
+  }
+  return -1;
+}
+
 // ============== APRS PARSER ==============
 bool parsePosition(const String& data, float& lat, float& lon) {
   int nsIdx = -1;
@@ -230,6 +247,8 @@ void handleMessage(std::shared_ptr<APRSMessage> msg) {
   s.hasPos = parsePosition(body, s.lat, s.lon);
   s.comment = stripPosition(body);
   s.isWx = parseWxData(body, s.wxTemp, s.wxHumidity, s.wxPressure);
+  s.speed = parseSpeed(body);
+  s.isMobile = s.speed > 0;
 
   if (s.hasPos) {
     s.distance = haversine(HOME_LAT, HOME_LON, s.lat, s.lon);
@@ -345,6 +364,21 @@ void drawWxStation(int idx) {
   u8g2.drawUTF8(wx, y, wl.c_str());
 }
 
+const unsigned char person_bits[] = {
+  0x0C, 0x00,
+  0x0C, 0x00,
+  0x1E, 0x00,
+  0x0C, 0x00,
+  0x1E, 0x00,
+  0x33, 0x00,
+  0x21, 0x00,
+  0x40, 0x80,
+  0x40, 0x80,
+  0x01, 0x40,
+  0x00, 0x80,
+  0x00, 0x00,
+};
+
 void drawStationScreen(int idx) {
   Station& s = stations[idx];
   if (s.isWx) {
@@ -361,8 +395,14 @@ void drawStationScreen(int idx) {
     return;
   }
 
+  int cx = 2;
+  if (s.isMobile) {
+    u8g2.drawXBM(cx, 16, 12, 12, person_bits);
+    cx = 18;
+  }
+
   u8g2.setFont(u8g2_font_10x20_t_cyrillic);
-  u8g2.drawUTF8(2, 34, s.callsign.c_str());
+  u8g2.drawUTF8(cx, 34, s.callsign.c_str());
 
   u8g2.setFont(u8g2_font_6x12_t_cyrillic);
   int y = 50;
@@ -383,7 +423,12 @@ void drawStationScreen(int idx) {
     y += 14;
   }
 
-  if (s.comment.length() > 0) {
+  if (s.isMobile) {
+    char sp[24];
+    float kmh = s.speed * 1.852;
+    snprintf(sp, sizeof(sp), "Speed: %.0f km/h", kmh);
+    u8g2.drawUTF8(2, y, sp);
+  } else if (s.comment.length() > 0) {
     String c = s.comment;
     if (u8g2.getUTF8Width(c.c_str()) > 124) {
       while (u8g2.getUTF8Width(c.c_str()) > 120 && c.length() > 0)