kopia lustrzana https://github.com/alanesq/esp32cam-demo
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Alan
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81a598bc07
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@ -37,8 +37,8 @@
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const char* ssid = "<your wifi network name here>";
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const char* password = "<your wifi password here>";
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const char stitle[] = "ESP32Cam-demo"; // title of this sketch
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const char sversion[] = "27Sep20"; // Sketch version
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const char* stitle = "ESP32Cam-demo"; // title of this sketch
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const char* sversion = "01Oct20"; // Sketch version
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const bool debugInfo = 1; // show additional debug info. on serial port (1=enabled)
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@ -82,7 +82,7 @@ WebServer server(80); // serve web pages on port 80
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bool sdcardPresent; // flag if an sd card is detected
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int imageCounter; // image file name on sd card counter
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// camera settings (CAMERA_MODEL_AI_THINKER)
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// camera settings (for the standard - OV2640 - CAMERA_MODEL_AI_THINKER)
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#define CAMERA_MODEL_AI_THINKER
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#define PWDN_GPIO_NUM 32 // power to camera on/off
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#define RESET_GPIO_NUM -1 // -1 = not used
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@ -113,73 +113,73 @@ WebServer server(80); // serve web pages on port 80
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void setup() {
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Serial.begin(serialSpeed); // Serial communication
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Serial.begin(serialSpeed); // Start serial communication
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Serial.println("\n\n\n"); // line feeds
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Serial.println("\n\n\n"); // line feeds
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Serial.println("-----------------------------------");
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Serial.printf("Starting - %s - %s \n", stitle, sversion);
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Serial.printf("Starting - %s - %s \n", stitle, sversion);
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Serial.println("-----------------------------------");
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// Turn-off the 'brownout detector'
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WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0);
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WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0); // Turn-off the 'brownout detector'
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// Define indicator led
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// Define small indicator led
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pinMode(indicatorLED, OUTPUT);
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digitalWrite(indicatorLED,HIGH);
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// Connect to wifi
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digitalWrite(indicatorLED,LOW); // small indicator led on
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Serial.print("\nConnecting to ");
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Serial.println(ssid);
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Serial.print(ssid);
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Serial.print("\n ");
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WiFi.begin(ssid, password);
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while (WiFi.status() != WL_CONNECTED) {
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delay(500);
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Serial.print(".");
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}
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Serial.print("\nWiFi connected. ");
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Serial.println("IP address: ");
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Serial.print("\nWiFi connected, ");
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Serial.print("IP address: ");
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Serial.println(WiFi.localIP());
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server.begin();
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digitalWrite(indicatorLED,HIGH); // small indicator led off
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digitalWrite(indicatorLED,HIGH); // small indicator led off
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// define web pages (call these procedures when url is requested)
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server.on("/", handleRoot); // root page
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server.on("/stream", handleStream); // stream live video
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server.on("/photo", handlePhoto); // save image to sd card
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server.on("/img", handleImg); // show image from sd card
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server.onNotFound(handleNotFound); // invalid url requested
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// define the web pages (i.e. call these procedures when url is requested)
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server.on("/", handleRoot); // root page
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server.on("/stream", handleStream); // stream live video
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server.on("/photo", handlePhoto); // save image to sd card
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server.on("/img", handleImg); // show image from sd card
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server.onNotFound(handleNotFound); // invalid url requested
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// set up camera
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Serial.print(("\nInitialising camera: "));
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if (setupCameraHardware()) Serial.println("OK");
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else {
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Serial.println("Error!");
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showError(2); // critical error so stop and flash led
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showError(2); // critical error so stop and flash led
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}
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// Configure sd card
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if (!SD_MMC.begin("/sdcard", true)) { // if loading sd card fails
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// SD Card - if one is detected set 'sdcardPresent' High
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if (!SD_MMC.begin("/sdcard", true)) { // if loading sd card fails
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// note: ('/sdcard", true)' = 1bit mode - see: https://www.reddit.com/r/esp32/comments/d71es9/a_breakdown_of_my_experience_trying_to_talk_to_an/
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Serial.println("No SD Card detected");
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sdcardPresent = 0; // flag no sd card available
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sdcardPresent = 0; // flag no sd card available
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} else {
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uint8_t cardType = SD_MMC.cardType();
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if (cardType == CARD_NONE) { // if invalid card found
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if (cardType == CARD_NONE) { // if invalid card found
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Serial.println("SD Card type detect failed");
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sdcardPresent = 0; // flag no sd card available
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sdcardPresent = 0; // flag no sd card available
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} else {
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// valid sd card detected
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uint16_t SDfreeSpace = (uint64_t)(SD_MMC.totalBytes() - SD_MMC.usedBytes()) / (1024 * 1024);
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Serial.printf("SD Card found, free space = %dMB \n", SDfreeSpace);
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sdcardPresent = 1; // flag sd card available
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sdcardPresent = 1; // flag sd card available
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}
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}
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fs::FS &fs = SD_MMC; // sd card file system
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fs::FS &fs = SD_MMC; // sd card file system
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// discover the number of image files stored in '/img' folder of the sd card and set image file counter accordingly
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imageCounter = 0;
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if (sdcardPresent) {
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int tq=fs.mkdir("/img"); // create the '/img' folder on sd card (in case it is not already there)
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int tq=fs.mkdir("/img"); // create the '/img' folder on sd card (in case it is not already there)
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if (!tq) Serial.println("Unable to create IMG folder on sd card");
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// open the image folder and step through all files in it
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@ -196,19 +196,19 @@ void setup() {
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}
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// define io pins
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pinMode(indicatorLED, OUTPUT); // re defined as sd card config can reset it
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digitalWrite(indicatorLED,HIGH); // led off = High
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pinMode(brightLED, OUTPUT);
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digitalWrite(brightLED,LOW); // led off = Low
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pinMode(iopinA, OUTPUT); // pin 13 - free io pin, can be input or output
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pinMode(iopinB, OUTPUT); // pin 12 - free io pin, can be input or output (must be low at boot)
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pinMode(indicatorLED, OUTPUT); // defined again as sd card config can reset it
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digitalWrite(indicatorLED,HIGH); // led off = High
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pinMode(brightLED, OUTPUT); // flash LED
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digitalWrite(brightLED,LOW); // led off = Low
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pinMode(iopinA, OUTPUT); // pin 13 - free io pin, can be input or output
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pinMode(iopinB, OUTPUT); // pin 12 - free io pin, can be input or output (must be low at boot)
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if (!psramFound()) {
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Serial.println("Warning: No PSRam found so defaulting to image size 'CIF'");
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framesize_t FRAME_SIZE_IMAGE = FRAMESIZE_CIF;
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}
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Serial.println("\nStarted...");
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Serial.println("\n\nStarted...");
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} // setup
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@ -260,7 +260,7 @@ void loop() {
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// ----------------------------------------------------------------
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// Configure the camera
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// ----------------------------------------------------------------
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// returns '1' if camera set up was ok
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// returns TRUE if sucessful
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bool setupCameraHardware() {
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@ -306,7 +306,8 @@ bool setupCameraHardware() {
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// ----------------------------------------------------------------
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// flash led 'reps' number of times
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// flash the indicator led 'reps' number of times
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void flashLED(int reps) {
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for(int x=0; x < reps; x++) {
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digitalWrite(indicatorLED,LOW);
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@ -318,7 +319,7 @@ void flashLED(int reps) {
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// critical error - stop sketch and continually flash error code
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// critical error - stop sketch and continually flash error code on indicator led
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void showError(int errorNo) {
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while(1) {
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flashLED(errorNo);
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@ -334,7 +335,7 @@ void showError(int errorNo) {
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// ----------------------------------------------------------------
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// Capture image from camera and save to sd card
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// ----------------------------------------------------------------
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// returns TRUE if image was saved ok
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// returns TRUE if sucessful
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bool storeImage() {
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@ -393,13 +394,14 @@ void handleRoot() {
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WiFiClient client = server.client(); // open link with client
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// log page request including clients IP address
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// log the page request including clients IP address
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if (debugInfo) {
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IPAddress cip = client.remoteIP();
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if (debugInfo) Serial.printf("Root page requested from: %d.%d.%d.%d \n", cip[0], cip[1], cip[2], cip[3]);
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Serial.printf("Root page requested from: %d.%d.%d.%d \n", cip[0], cip[1], cip[2], cip[3]);
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}
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// Action any button presses on this page
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// Action any button presses on the web page
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// if button1 was pressed (toggle io pin A)
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// Note: if using an input box etc. you would read the value with the command: String Bvalue = server.arg("demobutton1");
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@ -482,7 +484,7 @@ void handlePhoto() {
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// log page request including clients IP address
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if (debugInfo) {
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IPAddress cip = client.remoteIP();
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if (debugInfo) Serial.printf("Photo requested from: %d.%d.%d.%d \n", cip[0], cip[1], cip[2], cip[3]);
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Serial.printf("Photo requested from: %d.%d.%d.%d \n", cip[0], cip[1], cip[2], cip[3]);
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}
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// save an image to sd card
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@ -520,7 +522,7 @@ bool handleImg() {
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// log page request including clients IP address
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if (debugInfo) {
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IPAddress cip = client.remoteIP();
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if (debugInfo) Serial.printf("Image display requested from: %d.%d.%d.%d \n", cip[0], cip[1], cip[2], cip[3]);
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Serial.printf("Image display requested from: %d.%d.%d.%d \n", cip[0], cip[1], cip[2], cip[3]);
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if (imageCounter == 0) Serial.println("Error: no images to display");
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}
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@ -561,8 +563,12 @@ bool handleImg() {
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// ----------------------------------------------------------------
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void handleNotFound() {
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// log page request
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if (debugInfo) {
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Serial.print("Invalid page requested");
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}
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if (debugInfo) Serial.println("Invalid web page requested");
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String message = "File Not Found\n\n";
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message += "URI: ";
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message += server.uri();
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@ -597,7 +603,7 @@ void handleStream(){
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// log page request including clients IP address
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if (debugInfo) {
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IPAddress cip = client.remoteIP();
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if (debugInfo) Serial.printf("Video stream requested from: %d.%d.%d.%d \n", cip[0], cip[1], cip[2], cip[3]);
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Serial.printf("Video stream requested from: %d.%d.%d.%d \n", cip[0], cip[1], cip[2], cip[3]);
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}
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// HTML used in the web page
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@ -623,14 +629,14 @@ void handleStream(){
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while (true)
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{
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if (!client.connected()) break;
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fb = esp_camera_fb_get(); // capture live image frame
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fb = esp_camera_fb_get(); // capture live image
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s = fb->len; // store size of image (i.e. buffer length)
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client.write(CTNTTYPE, cntLen); // send content type html (i.e. jpg image)
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sprintf( buf, "%d\r\n\r\n", s ); // format the image's size as html
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client.write(buf, strlen(buf)); // send image size
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sprintf( buf, "%d\r\n\r\n", s ); // format the image's size as html and put in to 'buf'
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client.write(buf, strlen(buf)); // send result (image size)
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client.write((char *)fb->buf, s); // send the image data
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client.write(BOUNDARY, bdrLen); // send html boundary see https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Type
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esp_camera_fb_return(fb); // return frame so memory can be released
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esp_camera_fb_return(fb); // return image so memory can be released
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}
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if (debugInfo) Serial.println("Video stream stopped");
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