first Draft of UART for external LoRa-Module

Software/include/lora_net.h

@@ -2,10 +2,16 @@
 #define _LORA_NET_H_
 
 #include <Arduino.h>
+
+#ifdef LORA_FEATURE_ENABLED
 #include <LoRa_E220.h>
+#elif defined(FEATURE_ENABLE_UARTLORA)
+#include <SoftwareSerial.h>
+#endif
 
 // local includes
 #include "lora_messages.h"
+#include "debugger.h"
 #include "defaults.h"
 #include "config.h"
 #include "globals.h"

Software/include/sanitycheck.h

@@ -14,6 +14,9 @@
     #error "You must define an WIFI_AP_PASSWORD for Standalone AP-Mode"
 #endif
 
+#if defined(FEATURE_ENABLE_UARTLORA) && defined(FEATURE_ENABLE_LORA)
+    #error "You cannot enable LoRa and UART-Protocol at the same time!"
+#endif
 
 #ifdef FEATURE_ENABLE_WIFI_CLIENT
     #ifndef WIFI_CLIENT_PASSWORD

Software/platformio.ini

@@ -30,6 +30,7 @@ build_flags=
   ;-DFEATURE_ENABLE_WIFI_CLIENT
   ;-DFEATURE_ENABLE_LORA
   ;-DCAPTIVE
+  -DFEATURE_ENABLE_UARTLORA
   -DWIFI_AP_IP_GW=10,0,0,1
   -DADMIN_PASSWORD=${wifi_cred.ota_password}
   -DWIFI_CLIENT_SSID=${wifi_cred.wifi_client_ssid}

Software/src/lora_net.cpp

@@ -1,13 +1,19 @@
 #include "lora_net.h"
 
+#ifdef FEATURE_ENABLE_LORA
 LoRa_E220 e220ttl(GPIO_LORA_TX, GPIO_LORA_RX, GPIO_LORA_AUX, 3, 4); // Arduino RX <-- e220 TX, Arduino TX --> e220 RX AUX M0 M1
-
 void printParameters(struct Configuration configuration);
 void printModuleInformation(struct ModuleInformation moduleInformation);
+#elif defined(FEATURE_ENABLE_UARTLORA)
+SoftwareSerial SerialLoRa(GPIO_LORA_RX, GPIO_LORA_TX); // RX, TX
+void Parse_LoRa_UartCommand(char input[], int size);
+#endif
 
 bool InitLoRa(void (*MPinHelper)(int, int))
 {
-    bool returnval;
+    bool returnval = false;
+
+#ifdef FEATURE_ENABLE_LORA
 
     e220ttl.setMPins = MPinHelper;
     returnval = e220ttl.begin();
@@ -60,11 +66,15 @@ bool InitLoRa(void (*MPinHelper)(int, int))
     {
         MaintainDTC(DTC_NO_LORA_FOUND, DTC_WARN, true);
     }
+#elif defined(FEATURE_ENABLE_UARTLORA)
+    // LORA UART Stuff here
+#endif
     return returnval;
 }
 
 void LoRa_Process()
 {
+#ifdef FEATURE_ENABLE_LORA
     if (e220ttl.available() > 1)
     {
         ResponseContainer rc = e220ttl.receiveMessageRSSI();
@@ -82,10 +92,50 @@ void LoRa_Process()
             Serial.println(rc.rssi, DEC);
         }
     }
+#elif defined(FEATURE_ENABLE_UARTLORA)
+
+    char packageInput[16];
+    bool packageRecieved = false;
+    unsigned int bufferPtr = 0;
+
+    if (SerialLoRa.available() && packageRecieved == false)
+    {
+        while (bufferPtr < sizeof(packageInput))
+        {
+            packageInput[bufferPtr] = SerialLoRa.read();
+            if (packageInput[bufferPtr] == '\n')
+            {
+                packageInput[bufferPtr] = 0; // terminate String
+                packageRecieved = true;
+                Debug_pushMessage("Got LoRa UART: %s\n", packageInput);
+                break;
+            }
+            else if ((packageInput[bufferPtr] >= 0x30) || (packageInput[bufferPtr] <= 0x5A)) // only accept Numbers, UpperCase-Letters and some special chars
+            {
+                if (bufferPtr < sizeof(packageInput) - 1)
+                {
+                    bufferPtr++;
+                }
+                else
+                {
+                    packageInput[bufferPtr] = 0; // terminate String, bc Buffer is full (package to long)
+                    packageRecieved = true;      // send it anyway to the parser
+                    Debug_pushMessage("Got LoRa UART: %s\n", packageInput);
+                    break;
+                }
+            }
+        }
+    }
+
+    if (packageRecieved)
+        Parse_LoRa_UartCommand(packageInput, bufferPtr);
+
+#endif
 }
 
 void sendStatus_LoRa()
 {
+#ifdef FEATURE_ENABLE_LORA
     struct
     {
         MessageType_t type = "STATUS";
@@ -101,8 +151,13 @@ void sendStatus_LoRa()
 
     ResponseStatus rs = e220ttl.sendFixedMessage(0xFF, 0xFF, 23, (byte *)&sendStatus, sizeof(sendStatus));
     Serial.println(rs.getResponseDescription());
+#elif defined(FEATURE_ENABLE_UARTLORA)
+// LORA UART SEND STUFF HERE
+#endif
 }
 
+#ifdef FEATURE_ENABLE_LORA
+
 void printParameters(struct Configuration configuration)
 {
     Serial.println("----------------------------------------");
@@ -169,3 +224,26 @@ void printParameters(struct Configuration configuration)
 
     Serial.println("----------------------------------------");
 }
+#endif
+
+#ifdef FEATURE_ENABLE_UARTLORA
+void Parse_LoRa_UartCommand(char input[], int size)
+{
+
+    char delimiter[] = ";";
+    char *ptr;
+    char command[8];
+    char value[8];
+
+    ptr = strtok(input, delimiter);
+
+    while (ptr != NULL)
+    {
+        strncpy(command, ptr, sizeof(command));
+        ptr = strtok(NULL, delimiter);
+        strncpy(value, ptr, sizeof(value));
+    }
+
+    Debug_pushMessage("Parsed LoRa UART Command:  %s Value: %s\n", command, value);
+}
+#endif

Software/src/main.cpp

@@ -19,7 +19,7 @@
 #include "globals.h"
 #include "dtc.h"
 #include "debugger.h"
-#ifdef FEATURE_ENABLE_LORA
+#if defined(FEATURE_ENABLE_LORA) || defined(FEATURE_ENABLE_UARTLORA)
 #include "lora_net.h"
 #endif
 
@@ -49,7 +49,7 @@ void OverrideDisplay(uint32_t time, const char *message1, const char *message2,
 void initGlobals();
 void maintainSysStat();
 
-#ifdef FEATURE_ENABLE_LORA
+#if defined(FEATURE_ENABLE_UARTLORA) || defined(FEATURE_ENABLE_LORA)
 void setMPins_Helper(int pin, int status);
 void tmrCallback_StatusSender();
 Ticker tmrStatusSender(tmrCallback_StatusSender, 30000, 0, MILLIS);
@@ -72,7 +72,7 @@ Ticker tmrWiFiMaintainConnection(tmrCallback_WiFiMaintainConnection, 1000, 0, MI
 uint32_t DisplayOverrideFlag = 0;
 char DisplayOverrideValue[3][5] = {0};
 
-#ifdef FEATURE_ENABLE_LORA
+#if defined(FEATURE_ENABLE_UARTLORA) || defined(FEATURE_ENABLE_LORA)
 void setMPins_Helper(int pin, int status)
 {
 	i2c_io.write(pin, status);
@@ -119,7 +119,7 @@ void setup()
 		Serial.print("INA219 not Initialized\n");
 	}
 
-#ifdef FEATURE_ENABLE_LORA
+#if defined(FEATURE_ENABLE_UARTLORA) || defined(FEATURE_ENABLE_LORA)
 	if (InitLoRa(&setMPins_Helper))
 	{
 		Serial.print("Initialized LoRa_Transceiver\n");
@@ -229,9 +229,9 @@ void loop()
 	DTC_Process();
 	Debug_Process();
 
-#ifdef FEATURE_ENABLE_LORA
+#if defined(FEATURE_ENABLE_LORA) || defined(FEATURE_ENABLE_UARTLORA)
-	tmrStatusSender.update();
 	LoRa_Process();
+	tmrStatusSender.update();
 #endif
 
 #ifdef CAPTIVE
@@ -380,7 +380,7 @@ void tmrCallback_InputGetter()
 	}
 }
 
-#ifdef FEATURE_ENABLE_LORA
+#if defined(FEATURE_ENABLE_LORA) || defined(FEATURE_ENABLE_UARTLORA)
 void tmrCallback_StatusSender()
 {
 	sendStatus_LoRa();