readpin implementation

examples/simple_sensor/SensorMesh.cpp

@@ -3,16 +3,16 @@
 /* ------------------------------ Config -------------------------------- */
 
 #ifndef LORA_FREQ
-  #define LORA_FREQ   915.0
+  #define LORA_FREQ   869.618
 #endif
 #ifndef LORA_BW
-  #define LORA_BW     250
+  #define LORA_BW     62.5
 #endif
 #ifndef LORA_SF
-  #define LORA_SF     10
+  #define LORA_SF     8
 #endif
 #ifndef LORA_CR
-  #define LORA_CR      5
+  #define LORA_CR      8
 #endif
 #ifndef LORA_TX_POWER
   #define LORA_TX_POWER  20
@@ -443,6 +443,14 @@ void SensorMesh::handleCommand(uint32_t sender_timestamp, char* command, char* r
       board.setGpio(val);
     }
     sprintf(reply, "%x", board.getGpio());
+  } else if (memcmp(command, "readpin ", 8) == 0) {
+    uint8_t pin = atoi(&command[8]); // Pin-Nummer extrahieren
+    if (pin < 32) {
+        bool pin_state = board.readPin(pin); // Zustand des Pins auslesen
+        sprintf(reply, "%s", pin_state ? "ON" : "OFF");
+    } else {
+        strcpy(reply, "Err - invalid pin");
+    }
   } else{
     _cli.handleCommand(sender_timestamp, command, reply);  // common CLI commands
   }

examples/simple_sensor/main.cpp

@@ -102,6 +102,9 @@ void setup() {
 
   command[0] = 0;
 
+  // Konfiguriere GPIO 2 als Eingang mit Pull-Up
+  pinMode(2, INPUT_PULLUP);
+
   sensors.begin();
 
   the_mesh.begin(fs);

src/helpers/ESP32Board.h

@@ -48,6 +48,25 @@ public:
   #endif
   }
 
+  // Implement an actual getGpio for ESP32 boards
+  uint32_t getGpio() override {
+    uint32_t state = 0;
+    for (int pin = 0; pin < 32; pin++) {
+        if (digitalRead(pin) == HIGH) {
+            state |= (1 << pin);
+        }
+    }
+    return state;
+  }
+
+  // Read the state of a single pin
+  public:
+    // Liest den Zustand eines einzelnen Pins (0-31)
+    bool readPin(uint8_t pin) {
+        if (pin >= 32) return false; // Ungültiger Pin
+        return digitalRead(pin) == HIGH;
+    }
+
   // Temperature from ESP32 MCU
   float getMCUTemperature() override {
     uint32_t raw = 0;