kopia lustrzana https://github.com/alanesq/esp32cam-demo
Removed usage of String where possible
Alan
GitHub
rodzic
66ee904fb0
commit
21a2ad4cfe
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@ -13,7 +13,7 @@
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* - created using the Arduino IDE with ESP32 module installed (https://dl.espressif.com/dl/package_esp32_index.json)
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* No additional libraries required
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*
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*
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* ESP32 support for Arduino IDE: https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
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*
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* Info on the esp32cam board: https://randomnerdtutorials.com/esp32-cam-video-streaming-face-recognition-arduino-ide/
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*
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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 String stitle = "ESP32Cam-demo"; // title of this sketch
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const String sversion = "27Sep20"; // Sketch version
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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 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 type settings (CAMERA_MODEL_AI_THINKER)
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// camera settings (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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@ -104,8 +104,6 @@ WebServer server(80); // serve web pages on port 80
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camera_config_t config;
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// ******************************************************************************************************************
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@ -118,9 +116,9 @@ void setup() {
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Serial.begin(serialSpeed); // Serial communication
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Serial.println("\n\n\n"); // line feeds
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Serial.println("---------------------------------------");
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Serial.println("Starting - " + stitle + " - " + sversion);
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Serial.println("---------------------------------------");
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Serial.println("-----------------------------------");
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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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@ -138,14 +136,13 @@ void setup() {
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delay(500);
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Serial.print(".");
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}
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Serial.println("");
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Serial.println("WiFi connected.");
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Serial.print("\nWiFi connected. ");
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Serial.println("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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// define web pages (call procedures when url is requested)
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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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@ -153,7 +150,7 @@ void setup() {
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server.onNotFound(handleNotFound); // invalid url requested
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// set up camera
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Serial.print(("Initialising 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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@ -162,7 +159,7 @@ void setup() {
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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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// note: ("/sdcard", true) = 1 wire - see: https://www.reddit.com/r/esp32/comments/d71es9/a_breakdown_of_my_experience_trying_to_talk_to_an/
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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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} else {
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@ -173,43 +170,45 @@ void setup() {
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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.println("SD Card found, free space = " + String(SDfreeSpace) + "MB");
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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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}
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}
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fs::FS &fs = SD_MMC; // sd card file system
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// discover number of image files stored /img of sd card and set image file counter accordingly
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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 if 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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File root = fs.open("/img");
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while (true)
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{
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File entry = root.openNextFile();
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if (! entry) break;
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imageCounter ++; // increment image counter
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entry.close();
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}
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root.close();
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Serial.println("Image file count = " + String(imageCounter));
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// open the image folder and step through all files in it
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File root = fs.open("/img");
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while (true)
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{
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File entry = root.openNextFile(); // open next file in the folder
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if (!entry) break; // if no more files in the folder
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imageCounter ++; // increment image counter
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entry.close();
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}
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root.close();
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Serial.printf("Image file count = %d",imageCounter);
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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);
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digitalWrite(indicatorLED,HIGH); // led off = High
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pinMode(brightLED, OUTPUT);
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digitalWrite(brightLED,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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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("Started...");
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Serial.println("\nStarted...");
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} // setup
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@ -245,7 +244,7 @@ void loop() {
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// }
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// flash status light to show sketch is running
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// flash status LED to show sketch is running
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if ((unsigned long)(millis() - lastStatus) >= TimeBetweenStatus) {
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lastStatus = millis(); // reset timer
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digitalWrite(indicatorLED,!digitalRead(indicatorLED)); // flip indicator led status
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@ -259,7 +258,51 @@ void loop() {
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// ----------------------------------------------------------------
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// Misc small procedures
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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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bool setupCameraHardware() {
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config.ledc_channel = LEDC_CHANNEL_0;
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config.ledc_timer = LEDC_TIMER_0;
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config.pin_d0 = Y2_GPIO_NUM;
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config.pin_d1 = Y3_GPIO_NUM;
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config.pin_d2 = Y4_GPIO_NUM;
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config.pin_d3 = Y5_GPIO_NUM;
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config.pin_d4 = Y6_GPIO_NUM;
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config.pin_d5 = Y7_GPIO_NUM;
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config.pin_d6 = Y8_GPIO_NUM;
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config.pin_d7 = Y9_GPIO_NUM;
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config.pin_xclk = XCLK_GPIO_NUM;
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config.pin_pclk = PCLK_GPIO_NUM;
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config.pin_vsync = VSYNC_GPIO_NUM;
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config.pin_href = HREF_GPIO_NUM;
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config.pin_sscb_sda = SIOD_GPIO_NUM;
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config.pin_sscb_scl = SIOC_GPIO_NUM;
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config.pin_pwdn = PWDN_GPIO_NUM;
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config.pin_reset = RESET_GPIO_NUM;
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config.xclk_freq_hz = 20000000; // XCLK 20MHz or 10MHz for OV2640 double FPS (Experimental)
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config.pixel_format = PIXFORMAT_JPEG; // Options = YUV422, GRAYSCALE, RGB565, JPEG, RGB888
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config.frame_size = FRAME_SIZE_IMAGE; // Image sizes: 160x120 (QQVGA), 128x160 (QQVGA2), 176x144 (QCIF), 240x176 (HQVGA), 320x240 (QVGA),
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// 400x296 (CIF), 640x480 (VGA, default), 800x600 (SVGA), 1024x768 (XGA), 1280x1024 (SXGA), 1600x1200 (UXGA)
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config.jpeg_quality = 5; // 0-63 lower number means higher quality
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config.fb_count = 1; // if more than one, i2s runs in continuous mode. Use only with JPEG
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esp_err_t camerr = esp_camera_init(&config); // initialise the camera
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if (camerr != ESP_OK) Serial.printf("ERROR: Camera init failed with error 0x%x", camerr);
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return (camerr == ESP_OK); // return boolean result of camera initialisation
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}
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// ******************************************************************************************************************
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// ----------------------------------------------------------------
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// Misc small procedures
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// ----------------------------------------------------------------
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@ -275,7 +318,7 @@ void flashLED(int reps) {
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// critical error - stop sketch and continually flash error status
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// critical error - stop sketch and continually flash error code
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void showError(int errorNo) {
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while(1) {
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flashLED(errorNo);
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@ -284,6 +327,7 @@ void showError(int errorNo) {
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}
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// ******************************************************************************************************************
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@ -295,7 +339,7 @@ void showError(int errorNo) {
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bool storeImage() {
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if (sdcardPresent) {
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if (debugInfo) Serial.println("Storing image #" + String(imageCounter) + " to sd card");
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if (debugInfo) Serial.printf("Storing image #%d to sd card \n", imageCounter);
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} else {
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if (debugInfo) Serial.println("Storing image requested but there is no sd card");
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return 0; // no sd card available so exit procedure
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@ -338,49 +382,6 @@ bool storeImage() {
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// ******************************************************************************************************************
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// ----------------------------------------------------------------
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// Configure the camera
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// ----------------------------------------------------------------
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bool setupCameraHardware() {
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config.ledc_channel = LEDC_CHANNEL_0;
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config.ledc_timer = LEDC_TIMER_0;
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config.pin_d0 = Y2_GPIO_NUM;
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config.pin_d1 = Y3_GPIO_NUM;
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config.pin_d2 = Y4_GPIO_NUM;
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config.pin_d3 = Y5_GPIO_NUM;
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config.pin_d4 = Y6_GPIO_NUM;
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config.pin_d5 = Y7_GPIO_NUM;
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config.pin_d6 = Y8_GPIO_NUM;
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config.pin_d7 = Y9_GPIO_NUM;
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config.pin_xclk = XCLK_GPIO_NUM;
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config.pin_pclk = PCLK_GPIO_NUM;
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config.pin_vsync = VSYNC_GPIO_NUM;
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config.pin_href = HREF_GPIO_NUM;
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config.pin_sscb_sda = SIOD_GPIO_NUM;
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config.pin_sscb_scl = SIOC_GPIO_NUM;
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config.pin_pwdn = PWDN_GPIO_NUM;
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config.pin_reset = RESET_GPIO_NUM;
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config.xclk_freq_hz = 20000000; // XCLK 20MHz or 10MHz for OV2640 double FPS (Experimental)
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config.pixel_format = PIXFORMAT_JPEG; // PIXFORMAT_ + YUV422, GRAYSCALE, RGB565, JPEG, RGB888?
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config.frame_size = FRAME_SIZE_IMAGE; // Image sizes: 160x120 (QQVGA), 128x160 (QQVGA2), 176x144 (QCIF), 240x176 (HQVGA), 320x240 (QVGA),
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// 400x296 (CIF), 640x480 (VGA, default), 800x600 (SVGA), 1024x768 (XGA), 1280x1024 (SXGA), 1600x1200 (UXGA)
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config.jpeg_quality = 5; // 0-63 lower number means higher quality
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config.fb_count = 1; // if more than one, i2s runs in continuous mode. Use only with JPEG
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esp_err_t camerr = esp_camera_init(&config); // initialise the camera
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if (camerr != ESP_OK) Serial.printf("ERROR: Camera init failed with error 0x%x", camerr);
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// cameraImageSettings(); // apply camera sensor settings
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return (camerr == ESP_OK); // return boolean result of camera initilisation
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}
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// ******************************************************************************************************************
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@ -390,53 +391,56 @@ bool setupCameraHardware() {
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void handleRoot() {
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WiFiClient client = server.client(); // open link with client
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String tstr; // temp store for building line of html
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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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if (debugInfo) {
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IPAddress cip = client.remoteIP();
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if (debugInfo) Serial.println("Root page requested from: " + String(cip[0]) +"." + String(cip[1]) + "." + String(cip[2]) + "." + String(cip[3]));
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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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}
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// html header
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// Action any button presses on this 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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if (server.hasArg("button1")) {
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digitalWrite(iopinA,!digitalRead(iopinA)); // toggle output pin on/off
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if (debugInfo) Serial.println("Button 1 pressed");
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}
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// if button2 was pressed (toggle io pin B)
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if (server.hasArg("button2")) {
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digitalWrite(iopinB,!digitalRead(iopinB)); // toggle output pin on/off
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if (debugInfo) Serial.println("Button 2 pressed");
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}
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// if button3 was pressed (toggle flash LED)
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if (server.hasArg("button3")) {
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digitalWrite(brightLED,!digitalRead(brightLED)); // toggle flash LED on/off
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if (debugInfo) Serial.println("Button 3 pressed");
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}
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// html header
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client.write("<!DOCTYPE html> <html lang='en'> <head> <title>root</title> </head> <body>\n"); // basic html header
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client.write("<FORM action='/' method='post'>\n"); // used by the buttons in the html (action = the web page to send it to)
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// if button1 was pressed
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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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if (server.hasArg("button1")) {
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digitalWrite(iopinA,!digitalRead(iopinA)); // toggle output pin
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if (debugInfo) Serial.println("Button 1 pressed");
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}
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// if button2 was pressed
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if (server.hasArg("button2")) {
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digitalWrite(iopinB,!digitalRead(iopinB)); // toggle output pin
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if (debugInfo) Serial.println("Button 2 pressed");
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}
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// if button3 was pressed
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if (server.hasArg("button3")) {
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digitalWrite(brightLED,!digitalRead(brightLED)); // toggle flash LED
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if (debugInfo) Serial.println("Button 3 pressed");
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}
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// --------------------------------------------------------------------
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// html main body
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// Info on the arduino ethernet library: https://www.arduino.cc/en/Reference/Ethernet
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// Info in HTML: https://www.w3schools.com/html/
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// Info on the arduino ethernet library: https://www.arduino.cc/en/Reference/Ethernet
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// Info in HTML: https://www.w3schools.com/html/
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// Info on Javascript (can be inserted in to the HTML): https://www.w3schools.com/js/default.asp
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// Verify your HTML is valid: https://validator.w3.org/
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client.write("<h1>Hello from ESP32Cam</h1>\n");
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// sd card details
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if (sdcardPresent) {
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tstr = "<p>SD Card detected - " + String(imageCounter) + " images stored</p>\n";
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client.write(tstr.c_str());
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}
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if (sdcardPresent) client.printf("<p>SD Card detected - %d images stored</p>\n", imageCounter);
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else client.write("<p>No SD Card detected</p>\n");
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// io pin details
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@ -474,27 +478,25 @@ void handleRoot() {
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void handlePhoto() {
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WiFiClient client = server.client(); // open link with client
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String tstr; // temp store for building line of html
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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.println("Photo to sd card requested from: " + String(cip[0]) +"." + String(cip[1]) + "." + String(cip[2]) + "." + String(cip[3]));
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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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}
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// save an image to sd card
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bool sRes = storeImage(); // save an image to sd card (store sucess or failed flag)
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// html header
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client.write("<!DOCTYPE html> <html> <body>\n");
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client.write("<!DOCTYPE html> <html lang='en'> <head> <title>photo</title> </head> <body>\n"); // basic html header
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// html body
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// note: if the line of html is not just plain text it has to be first put in to 'tstr' then sent in this way
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// I find it easier to use strings then convert but this is probably frowned upon ;-)
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if (sRes == 1) tstr = "<p>Image saved to sd card as image number " + String(imageCounter) + "</p>\n";
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else tstr = "<p>Failed to save image to sd card</p>\n";
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client.write(tstr.c_str());
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if (sRes == 1) client.printf("<p>Image saved to sd card as image number %d </p>\n", imageCounter);
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else client.write("<p>Failed to save image to sd card</p>\n");
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// end html
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client.write("</body></htlm>\n");
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client.write("</body></html>\n");
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delay(3);
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client.stop();
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@ -513,9 +515,15 @@ void handlePhoto() {
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bool handleImg() {
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|
||||
if (imageCounter == 0 && debugInfo == 1) Serial.println("Image display from sd card requested but no image to display");
|
||||
|
||||
WiFiClient client = server.client(); // open link with client
|
||||
|
||||
// log page request including clients IP address
|
||||
if (debugInfo) {
|
||||
IPAddress cip = client.remoteIP();
|
||||
if (debugInfo) Serial.printf("Image display requested from: %d.%d.%d.%d \n", cip[0], cip[1], cip[2], cip[3]);
|
||||
if (imageCounter == 0) Serial.println("Error: no images to display");
|
||||
}
|
||||
|
||||
int imgToShow = imageCounter; // default to showing most recent file
|
||||
|
||||
// get image number from url parameter
|
||||
|
|
@ -525,7 +533,7 @@ bool handleImg() {
|
|||
if (imgToShow < 1 || imgToShow > imageCounter) imgToShow = imageCounter; // validate image number
|
||||
}
|
||||
|
||||
if (debugInfo) Serial.println("Displaying image #" + String(imgToShow) + " from sd card");
|
||||
if (debugInfo) Serial.printf("Displaying image #%d from sd card", imgToShow);
|
||||
|
||||
String tFileName = "/img/" + String(imgToShow) + ".jpg";
|
||||
fs::FS &fs = SD_MMC; // sd card file system
|
||||
|
|
@ -587,8 +595,10 @@ void handleStream(){
|
|||
WiFiClient client = server.client(); // open link with client
|
||||
|
||||
// log page request including clients IP address
|
||||
if (debugInfo) {
|
||||
IPAddress cip = client.remoteIP();
|
||||
if (debugInfo) Serial.println("Video stream requested from: " + String(cip[0]) +"." + String(cip[1]) + "." + String(cip[2]) + "." + String(cip[3]));
|
||||
if (debugInfo) Serial.printf("Video stream requested from: %d.%d.%d.%d \n", cip[0], cip[1], cip[2], cip[3]);
|
||||
}
|
||||
|
||||
// HTML used in the web page
|
||||
const char HEADER[] = "HTTP/1.1 200 OK\r\n" \
|
||||
|
|
|
|||
Ładowanie…
Reference in New Issue