Implementing Deepsleep + counter (as long as we have no timestep for naming picture files)

client/ESPcam/src/main.cpp

@@ -61,6 +61,14 @@ over-the-air updates for the camera at one point.
 // LED control
 #define LEDpin 4
 
+// Deep Sleep Settings 
+#define uS_TO_S_FACTOR 1000000  /* Conversion factor for micro seconds to seconds */
+#define TIME_TO_SLEEP  10        /* Time ESP32 will go to sleep (in seconds) */
+
+
+// Counting files on sd card for saving in the name of each image
+int fileCountOnSD = 0; // for counting files
+
 // string for saving the time
 char time_string[20];
 
@@ -237,21 +245,55 @@ void takeNewPhoto(String path)
 	esp_camera_fb_return(fb);
 }
 
-void readRTC()
-{
-	// This is used for a picture timestamp (name of the image)
-	rtc.begin();
-	DateTime now = rtc.now();
-	sprintf(time_string, "%04d-%02d-%02dT%02d-%02d-%02d", now.year(), now.month(), now.day(), now.hour(), now.minute(),
-	        now.second());
-	Serial.println(time_string);
+// Count files on SD card to give a meaningful count  
+void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
+    Serial.printf("Listing directory: %s\n", dirname);
+
+    File root = fs.open(dirname);
+    if(!root){
+        Serial.println("Failed to open directory");
+        return;
+    }
+    if(!root.isDirectory()){
+        Serial.println("Not a directory");
+        return;
+    }
+
+    File file = root.openNextFile();
+    while(file){
+		fileCountOnSD += 1;
+
+        //Serial.print("  FILE: ");
+        //Serial.print(file.name());
+        //Serial.print("  SIZE: ");
+        //Serial.println(file.size());
+        
+        file = root.openNextFile();
+    }
+	Serial.println("File Count on SD: ");
+	Serial.println(fileCountOnSD);
 }
 
+ void readRTC()
+ {
+ 	// This is used for a picture timestamp (name of the image)
+ 	 if (! rtc.begin()) {
+ 	 	Serial.println("Couldnt find RTC!");
+ 	 } else {
+ 	 	Serial.println("Setting the time");
+ 	 }
+ 	 DateTime now = rtc.now();
+ 	 sprintf(time_string, "%04d-%02d-%02dT%02d-%02d-%02d", now.year(), now.month(), now.day(), now.hour(), now.minute(),
+ 	         now.second());
+ 	 Serial.println(time_string);
+
+	
+ }
+
 Sht85 sht85Sensor;
 
 void setup()
-{
-	// control of the LED pin
+{	// control of the LED pin
 	pinMode(LEDpin, OUTPUT);
 	// Disable brownout detector
 	WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0);
@@ -259,19 +301,24 @@ void setup()
 	// Start Serial
 	Serial.begin(115200);
 
+	Serial.println("Wake Up!");
+	delay(1000);
+
+
 	// Initialize the camera
 	Serial.print("Initializing the camera module...");
 	camera_configESPCamera();
 	Serial.println("Camera OK!");
 	espnow_setup();
 	sht85Sensor.setup();
-}
 
-void loop()
-{
+	// before in loop 
 	// initiate I2C, read SHT+RTC, end I2C
+
 	readRTC();
 
+
+
 	try {
 		//	out_data_drs26 data= dr26.readData();
 		//	Serial.printf("data circumfrence");
@@ -299,8 +346,12 @@ void loop()
 	Serial.print("Initializing the MicroSD card module... ");
 	initMicroSDCard();
 
+	// Count files on SD card 
+	listDir(SD_MMC, "/", 0);
+
+
 	// Path where new image will be saved in MicroSD card
-	String path = "/" + String(time_string) + ".jpg";
+	String path = "/Picture_" + String(fileCountOnSD) + ".jpg";
 	Serial.printf("Picture file name: %s\n", path.c_str());
 
 	// Take and save a picture
@@ -311,4 +362,17 @@ void loop()
 
 	// Delay for specified period
 	delay(1000);
+
+	// Deep sleep 
+	esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP * uS_TO_S_FACTOR);
+	Serial.println("Setup ESP32 to sleep for " + String(TIME_TO_SLEEP) + " Seconds");
+	Serial.println("Going to sleep now");
+  	delay(1000);
+  	Serial.flush(); 
+	gpio_hold_en((gpio_num_t)LEDpin);
+	esp_deep_sleep_start();
+}
+
+void loop()
+{
 }

client/libs/sht85/Sht85.hpp

@@ -19,8 +19,8 @@
 
 // Pin definitions for I2C (SHT85, RTC)
 //  This is different from the pins on the ESP32-C3-DevKit boards!
-#define SDA 12
-#define SCL 13
+#define SDA 13
+#define SCL 12
 
 struct out_data_sht85 {
 	float temperature = 0.0;