starting sleep code

src/boards_pinout.h

@@ -75,6 +75,7 @@
     #define RADIO_CS_PIN        18  // CS  --> NSS
     #define RADIO_RST_PIN       23
     #define RADIO_BUSY_PIN      26  // IRQ --> DIO0
+    #define RADIO_WAKEUP_PIN    RADIO_BUSY_PIN
 #endif
 
 

src/sleep_utils.cpp

@@ -0,0 +1,36 @@
+#include "sleep_utils.h"
+#include "boards_pinout.h"
+
+bool lowPowerModeActive = true;
+bool wakeUpFlag = false;
+
+namespace SLEEP_Utils {
+
+    void handle_wakeup() {
+        esp_sleep_wakeup_cause_t wakeup_cause = esp_sleep_get_wakeup_cause();
+        switch (wakeup_cause) {
+            case ESP_SLEEP_WAKEUP_TIMER:
+                Serial.print("Woken up by timer (Sending Beacon) \n");
+                break;
+            case ESP_SLEEP_WAKEUP_EXT1:
+                Serial.print("Woken up by EXT1 (GPIO) (Packet Received)\n");
+                break;
+            default:
+                Serial.print("Woken up by unknown reason\n");
+                break;
+        }
+    }
+
+    void wakeUpLoRaPacketReceived() {
+        wakeUpFlag = true;
+    }
+
+    void setup() {
+        if (lowPowerModeActive) {
+            pinMode(RADIO_WAKEUP_PIN, INPUT);
+            attachInterrupt(digitalPinToInterrupt(RADIO_WAKEUP_PIN), wakeUpLoRaPacketReceived, RISING);
+            //LoRa_Utils::wakeRadio();
+        }
+    }
+
+}

src/sleep_utils.h

@@ -0,0 +1,14 @@
+#ifndef SLEEP_UTILS_H_
+#define SLEEP_UTILS_H_
+
+#include <Arduino.h>
+
+namespace SLEEP_Utils {
+
+    void handle_wakeup();
+    void wakeUpLoRaPacketReceived();
+    void setup();
+    
+}
+
+#endif