kopia lustrzana https://github.com/alanesq/esp32cam-demo
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Alan
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5972960f65
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e3849bf9c3
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@ -10,10 +10,8 @@
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* flash led is still available for use on pin 4 and does not flash when accessing sd card
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*
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*
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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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* ESP32 support for Arduino IDE: https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
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* Created using the Arduino IDE with ESP32 module installed, no additional libraries required
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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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@ -31,7 +29,6 @@
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#include "esp_camera.h" // https://github.com/espressif/esp32-camera
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#include <WiFi.h>
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#include <WebServer.h>
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#include "fd_forward.h" // required for converting frame to RGB?
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// ---------------------------------------------------------------
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@ -42,7 +39,7 @@
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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* stitle = "ESP32Cam-demo"; // title of this sketch
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const char* sversion = "13Nov20"; // Sketch version
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const bool debugInfo = 1; // show additional debug info. on serial port (1=enabled)
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@ -50,21 +47,21 @@
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// Camera related
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const bool flashRequired = 1; // If flash to be used when capturing image (1 = yes)
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const framesize_t FRAME_SIZE_IMAGE = FRAMESIZE_VGA; // Image resolution:
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// default = "const framesize_t FRAME_SIZE_IMAGE = FRAMESIZE_XGA"
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// default = "const framesize_t FRAME_SIZE_IMAGE = FRAMESIZE_VGA"
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// 160x120 (QQVGA), 128x160 (QQVGA2), 176x144 (QCIF), 240x176 (HQVGA),
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// 320x240 (QVGA), 400x296 (CIF), 640x480 (VGA, default), 800x600 (SVGA),
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// 1024x768 (XGA), 1280x1024 (SXGA), 1600x1200 (UXGA)
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int cameraImageExposure = 0; // Camera exposure (0 - 1200), if gain and exposure set to zero then auto adjust is enabled
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int cameraImageExposure = 0; // Camera exposure (0 - 1200) If gain and exposure both set to zero then auto adjust is enabled
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int cameraImageGain = 0; // Image gain (0 - 30)
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const int TimeBetweenStatus = 600; // speed of flashing system running ok status light (milliseconds)
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const int TimeBetweenStatus = 600; // speed of system running ok status light (milliseconds)
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const int indicatorLED = 33; // onboard status LED pin (33)
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const int brightLED = 4; // onboard flash LED pin (4)
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const int iopinA = 13; // general io pin
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const int iopinB = 12; // general io pin (must be low at boot)
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const int iopinA = 13; // general io pin 13
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const int iopinB = 12; // general io pin 12 (must not be high at boot)
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const int serialSpeed = 115200; // Serial data speed to use
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@ -88,12 +85,11 @@ WebServer server(80); // serve web pages on port 80
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uint32_t lastCamera = millis(); // timer for periodic image capture
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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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String tReply; // temp text store
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// camera settings (for the standard - OV2640 - CAMERA_MODEL_AI_THINKER)
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// see: https://randomnerdtutorials.com/esp32-cam-camera-pin-gpios/
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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 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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#define XCLK_GPIO_NUM 0
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#define SIOD_GPIO_NUM 26 // i2c sda
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@ -148,7 +144,7 @@ void setup() {
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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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server.begin(); // start web server
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digitalWrite(indicatorLED,HIGH); // small indicator led off
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// define the web pages (i.e. call these procedures when url is requested)
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@ -156,7 +152,7 @@ void setup() {
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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.on("/rgb", readRGBImage); // capture image and convert to RGB
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server.on("/rgb", readRGBImage); // demo converting image to RGB
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server.onNotFound(handleNotFound); // invalid url requested
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// set up camera
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@ -247,14 +243,14 @@ void loop() {
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// // Capture an image and save to sd card every 5 seconds
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// // Capture an image and save to sd card every 5 seconds (i.e. time lapse)
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// if ((unsigned long)(millis() - lastCamera) >= 5000) {
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// lastCamera = millis(); // reset timer
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// storeImage(); // save an image to sd card
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// }
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// flash status LED to show sketch is running
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// flash status LED to show sketch is running ok
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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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@ -465,6 +461,7 @@ bool storeImage() {
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// ----------------------------------------------------------------
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// -root web page requested i.e. http://x.x.x.x/
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// ----------------------------------------------------------------
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// Control buttons, links etc.
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void handleRoot() {
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@ -632,7 +629,7 @@ void handlePhoto() {
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// ----------------------------------------------------------------
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// -show image from sd card i.e. http://x.x.x.x/img?img=x
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// -show images stored on sd card i.e. http://x.x.x.x/img?img=x
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// ----------------------------------------------------------------
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// default image = most recent
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// returns 1 if image displayed ok
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@ -683,9 +680,12 @@ bool handleImg() {
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// ----------------------------------------------------------------
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// -invalid web page requested
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// ----------------------------------------------------------------
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// Note: shows a different way to send the HTML reply
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void handleNotFound() {
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String tReply;
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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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@ -714,7 +714,7 @@ void handleNotFound() {
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// ----------------------------------------------------------------
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// Access image data as RGB - i.e. http://x.x.x.x/rgb
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// -access image data as RGB - i.e. http://x.x.x.x/rgb
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// ----------------------------------------------------------------
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// Info. from: https://github.com/Makerfabs/Project_Touch-Screen-Camera/blob/master/Camera_v2/Camera_v2.ino
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// note: Will fail on the highest resolution as it requires more than 4mb to store the data (in psram)
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@ -732,8 +732,8 @@ void readRGBImage() {
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// html header
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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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MessageRGB(client,"LIVE IMAGE AS RGB DATA"); // reply to send to web client and serial port
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MessageRGB(client,"Starting RGB procedure at millis=" + String(millis()));
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MessageRGB(client,"LIVE IMAGE AS RGB DATA"); // 'MessageRGB' sends the String to both serial port and web page
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MessageRGB(client,"Starting RGB procedure at millis=" + String(millis())); // so you can see how long it takes to execute this code
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@ -764,10 +764,13 @@ void readRGBImage() {
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// ****** examples of reading the resulting RGB data *****
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uint32_t resultsToShow = 50; // how much data to display
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// Note: You can send the entire image with the command: client.write(rgb, ARRAY_LENGTH);
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// If this is all that is sent then it will download to the client as a raw RGB file which you can then view using this
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// Processing sketch: https://github.com/alanesq/esp32cam-demo/blob/master/Misc/displayRGB.pde
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// display some of the resulting data
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uint32_t resultsToShow = 50; // how much data to display
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MessageRGB(client,"R , G , B");
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for (uint32_t i = 0; i < resultsToShow-2; i+=3) {
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MessageRGB(client,String(rgb[i+2]) + "," + String(rgb[i+1]) + "," + String(rgb[i+0])); // Red , Green , Blue
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@ -790,8 +793,8 @@ void readRGBImage() {
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aBlue = aBlue / (fb->width * fb->height);
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MessageRGB(client,"Average Blue = " + String(aBlue));
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MessageRGB(client,"Average Green = " + String(aGreen));
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MessageRGB(client,"Average Red = " + String(aRed));
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MessageRGB(client,"Average Red = " + String(aRed));
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// *******************************************************
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@ -814,7 +817,7 @@ void readRGBImage() {
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// send line of text to both serial port and web page
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void MessageRGB(WiFiClient &client, String theText) {
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client.print(theText + "<br>\n");
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if (debugInfo || theText.indexOf('error') > 0) Serial.println (theText);
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if (debugInfo || theText.indexOf('error') > 0) Serial.println(theText);
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}
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