Change Versions Date

CHANGELOG.md

@@ -1,5 +1,15 @@
 CHANGELOG
 
+## 0.0.6 (18.01.2025)
++ Anpassung Programmablaufplan
+
+### Segeflug Modul
++ Umsetzen der Sender-Logik
++ senden im NMEA Format
+
+### Winden Modul
++ empfangen im NMEA Format
+
 ## 0.0.5 (30.11.2025)
 + Formatierung Code
 ### Segeflug Modul

README.md

@@ -24,7 +24,7 @@
 - [ ] Kennzeichen einstellbar
 - [x] Analoge Anzeige in der Winde
 - [x] Farbige LEDs für Limits
-- [ ] Übertragungszeit Begrenzen
+- [x] Übertragungszeit Begrenzen
 - [ ] Übertragungszeit einstellbar
 - [ ] Übertragung Rundumleuchten Signal an Start
 - [x] Luftdrucksensor für Höhe und Vario
@@ -50,7 +50,7 @@ Pin Layout Heltec WiFi LoRa (v3)
 
 
 ## PCB
-Die Platine ist so gestaltet das sie Induvidul bestückt werden kann, je nach Verwendung
+Die Platine ist so gestaltet das sie individuell bestückt werden kann, je nach Verwendung
 
 ![Platine bestückt](img/Winden_Telemetry_PCB.png)
 
@@ -81,21 +81,24 @@ flowchart TD
     A(["Start"])
     A --> B{"ist Senden an?"}
     B --> | Ja  | C{"Sende Timer <90 sec"}
-    B --> | Nein | E{"low speed timer <90 sec"}
+    I --> | Nein | E{"is airborn?"} 
    
-    C --> | Nein | F["Sende Schleppen komplett"] -->G["Starte Low Speed Timer"]
+    C --> | Nein | F["Sende Schleppen komplett"] -->G["is airborn=true"] -->L["Lowspeedtimer = 0"]  
     C --> | Ja | D["Sende Speed"]
    
     
     D --> Z["Warte 1 Sekunde"]
-    G ----> H["Senden aus"] -->Z
+    L ----> H["Senden aus"] -->Z
     
     Z --> B
     
-    E --> | nein | I{"Speed < 30 km/h"} 
-    I --> | nein |J["Senden an"] --> D
-    I --> | ja|Z
-    E --> | ja|Z
+    B --> | nein | I{"Speed < 30 km/h"} 
+    E --> | nein |J["Senden an"] -->P["Start Sendetimer"] --> D
+    I --> | ja| K["Lowspeedtimer + 1"]
+    K --> M{"lowspeedtimer >90"} 
+    M --> | ja | N["is airborn=false"] --> Z
+    M --> | nein | Z
+    E --> | ja |O["Lowspeedtimer = 0"] --> Z
 
     
 ```

src/main.cpp

@@ -9,18 +9,19 @@
 
 #ifdef DEVICE_SAILPLANE
 #include <airspeed.h>
-JsonDocument sailplane_data;
+unsigned long previousMillisSend = 0;
+const long send_interval = 1000;
+unsigned long previousMillissendtimer = 0;
+const long sendtimer_max = 90000;
+bool send_data = false;
+bool is_airborn = false;
+int lowspeedtimer = 0;
+int lowspeedtimermax = 90000;
 #endif
 
 SX1262 radio = new Module(LORA_NSS, LORA_DIO1, LORA_NRST, LORA_BUSY);
-
 #ifdef DEVICE_WINDE
 volatile bool receivedFlag = false;
-
-// this function is called when a complete packet
-// is received by the module
-// IMPORTANT: this function MUST be 'void' type
-//            and MUST NOT have any arguments!
 #if defined(ESP8266) || defined(ESP32)
 ICACHE_RAM_ATTR
 #endif
@@ -35,6 +36,15 @@ void setFlag(void)
 U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, OLED_RST, OLED_CLK, OLED_DATA);
 #endif
 
+#ifdef DEVICE_WINDE
+
+String data_from;
+int data_speed = 0;
+int data_min = 0;
+int data_max = 0;
+
+#endif
+
 void setup()
 {
   /* Serial to display data */
@@ -90,6 +100,22 @@ void setup()
   u8g2.sendBuffer();
 }
 
+String nmea_checksum(String str)
+{
+  byte cs = 0;
+  for (unsigned int n = 1; n < str.length(); n++)
+  {
+    if (str[n] != '$' || str[n] != '!' || str[n] != '*')
+    {
+      cs ^= str[n];
+    }
+  }
+
+  if (cs < 0x10)
+    return "*0" + String(cs, HEX);
+  else
+    return "*" + String(cs, HEX);
+}
 void draw_rssi(int Rssi){
     u8g2.drawFrame(102,8,4,3);
     u8g2.drawFrame(107,6,4,5);
@@ -121,53 +147,159 @@ void draw_rssi(int Rssi){
 
   
 }
+
+void send_lora(String data)
+{
+  int state = radio.transmit(data);
+  if (state == RADIOLIB_ERR_NONE)
+  {
+    // the packet was successfully transmitted
+    Serial.println(F("success!"));
+
+    // print measured data rate
+    Serial.print(F("[SX1262] Datarate:\t"));
+    Serial.print(radio.getDataRate());
+    Serial.println(F(" bps"));
+  }
+  else if (state == RADIOLIB_ERR_PACKET_TOO_LONG)
+  {
+    // the supplied packet was longer than 256 bytes
+    Serial.println(F("too long!"));
+  }
+  else if (state == RADIOLIB_ERR_TX_TIMEOUT)
+  {
+    // timeout occured while transmitting packet
+    Serial.println(F("timeout!"));
+  }
+  else
+  {
+    // some other error occurred
+    Serial.print(F("failed, code "));
+    Serial.println(state);
+  }
+}
+
+void send_speed(int vel_kmh)
+{
+  String data;
+  // serializeJson(sailplane_data, data);
+  // sprintf(data,"$PWTLS,%s,%u,%u,%u","D-1234",vel_kmh,70,140);
+  data = "$PWTLS,D1234," + String(vel_kmh) + ",70,140";
+  data += nmea_checksum(data);
+  Serial.println(data);
+  send_lora(data);
+}
+
+void send_airborn()
+{
+  String data;
+  // serializeJson(sailplane_data, data);
+  data = "$PWTLA,D1234,1";
+  data += nmea_checksum(data);
+  Serial.println(data);
+  send_lora(data);
+}
+String getSplitValue(String data, char separator, int index)
+{
+  int found = 0;
+  int strIndex[] = {0, -1};
+  int maxIndex = data.length() - 1;
+  for (int i = 0; i <= maxIndex && found <= index; i++)
+  {
+    if (data.charAt(i) == separator || i == maxIndex)
+    {
+      found++;
+      strIndex[0] = strIndex[1] + 1;
+      strIndex[1] = (i == maxIndex) ? i + 1 : i;
+    }
+  }
+  return found > index ? data.substring(strIndex[0], strIndex[1]) : "";
+}
+void decode_start(String data)
+{
+  data_from = getSplitValue(data, ',', 1);
+  data_speed = (getSplitValue(data, ',', 2)).toInt();
+  data_min = (getSplitValue(data, ',', 3)).toInt();
+  data_max = (getSplitValue(data, ',', 4)).toInt();
+}
+void decode_airborn(String data)
+{
+  data_from = getSplitValue(data, ',', 1);
+  data_speed = 0;
+  data_min = 0;
+  data_max = 0;
+}
+void decode_msg(String data)
+{
+  String pos1 = getSplitValue(data, ',', 0);
+  if (pos1 == "$PWTLS")
+  {
+    decode_start(data);
+  }
+  else if (pos1 == "$PWTLA")
+  {
+    decode_airborn(data);
+  }
+  else
+  {
+    Serial.println("Nachricht nicht erkannt");
+  }
+}
+
 void loop()
 {
 #ifdef DEVICE_SAILPLANE
-
-  /* Read the sensor */
-  get_pressure();
-  int vel_kmh = get_airspeed_kmh();
-  u8g2.clearBuffer();
-  u8g2.setFont(u8g2_font_logisoso42_tr);
-  u8g2.setCursor(0, 60);
-  u8g2.print(vel_kmh);
-  u8g2.sendBuffer();
-  if (vel_kmh > 30)
+  unsigned long currentMillis = millis();
+  if (currentMillis - previousMillisSend >= send_interval)
   {
-    sailplane_data["from"]= "D-1234";
-    sailplane_data["telemetry"]["speed"]=vel_kmh;
-    sailplane_data["telemetry"]["min"]=70;
-    sailplane_data["telemetry"]["max"]=150;
-    String data;
-    serializeJson(sailplane_data,data);
-    //String data = String(vel_kmh);
-    int state = radio.transmit(data);
-    if (state == RADIOLIB_ERR_NONE)
-    {
-      // the packet was successfully transmitted
-      Serial.println(F("success!"));
+    previousMillisSend = currentMillis;
+    /* Read the sensor */
+    get_pressure();
+    int vel_kmh = get_airspeed_kmh();
+    u8g2.clearBuffer();
+    u8g2.setFont(u8g2_font_logisoso42_tr);
+    u8g2.setCursor(0, 60);
+    u8g2.print(vel_kmh);
+    u8g2.sendBuffer();
 
-      // print measured data rate
-      Serial.print(F("[SX1262] Datarate:\t"));
-      Serial.print(radio.getDataRate());
-      Serial.println(F(" bps"));
-    }
-    else if (state == RADIOLIB_ERR_PACKET_TOO_LONG)
+    if (send_data == false)
     {
-      // the supplied packet was longer than 256 bytes
-      Serial.println(F("too long!"));
-    }
-    else if (state == RADIOLIB_ERR_TX_TIMEOUT)
-    {
-      // timeout occured while transmitting packet
-      Serial.println(F("timeout!"));
+      if (vel_kmh < 30)
+      {
+        lowspeedtimer++;
+        if (lowspeedtimer >= lowspeedtimermax)
+        {
+          is_airborn = false;
+          lowspeedtimer = lowspeedtimermax;
+        }
+      }
+      else
+      {
+        if (is_airborn)
+        {
+          lowspeedtimer = 0;
+        }
+        else
+        {
+          send_data = true;
+          send_speed(vel_kmh);
+          previousMillissendtimer = currentMillis;
+        }
+      }
     }
     else
     {
-      // some other error occurred
-      Serial.print(F("failed, code "));
-      Serial.println(state);
+      if (currentMillis - previousMillissendtimer < sendtimer_max)
+      {
+        send_speed(vel_kmh);
+      }
+      else
+      {
+        send_airborn();
+        is_airborn = true;
+        lowspeedtimer = 0;
+        send_data = false;
+      }
     }
 
 #ifdef DEBUG
@@ -182,7 +314,6 @@ void loop()
     Serial.print(pres.die_temp_c(), 6);
     Serial.print("\n");
 #endif
-    delay(1000);
   }
 
 #endif
@@ -195,22 +326,10 @@ void loop()
     // you can read received data as an Arduino String
     String str;
     int state = radio.readData(str);
-    JsonDocument received;
-    deserializeJson(received,str);
-
-    // you can also read received data as byte array
-    /*
-      byte byteArr[8];
-      int numBytes = radio.getPacketLength();
-      int state = radio.readData(byteArr, numBytes);
-    */
 
     if (state == RADIOLIB_ERR_NONE)
     {
-      String data_from=received["from"];
-      int data_speed=received["telemetry"]["speed"];
-      int data_min=received["telemetry"]["min"];
-      int data_max=received["telemetry"]["max"];
+      decode_msg(str);
       // packet was successfully received
       u8g2.clearBuffer();
       u8g2.setFont(u8g2_font_ncenB10_tr);