kopia lustrzana https://github.com/alanesq/esp32cam-demo
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Alan
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723e6e1e05
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9e2fc26247
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@ -27,7 +27,7 @@
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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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* To see a more advanced sketch along the same format as this one have a look at https://github.com/alanesq/CameraWifiMotion
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* which includes email support, FTP, OTA updates, time from NTP servers and motion detection
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* which includes email support, FTP, OTA updates and motion detection
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*
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*
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* esp32cam-demo is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
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@ -40,28 +40,23 @@
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#error This sketch is only for an ESP32Cam module
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#endif
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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 <HTTPClient.h> // used by requestWebPage()
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#include "driver/ledc.h" // used to configure pwm on illumination led
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// spiffs used to store images without an sd card
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#include <SPIFFS.h>
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#include <FS.h> // gives file access on spiffs
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// ******************************************************************************************************************
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// ---------------------------------------------------------------
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// -SETTINGS
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// -SETTINGS
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// ---------------------------------------------------------------
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// Wifi settings (enter your wifi network details)
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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 = "12Dec20"; // Sketch version
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const char* sversion = "13Dec20"; // Sketch version
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const bool serialDebug = 1; // show info. on serial port (1=enabled, disable if using pins 1 and 3 as gpio)
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@ -89,36 +84,10 @@
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const int serialSpeed = 115200; // Serial data speed to use
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// ******************************************************************************************************************
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WebServer server(80); // serve web pages on port 80
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#include "soc/soc.h" // Used to disable brownout detection
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#include "soc/rtc_cntl_reg.h"
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#include "SD_MMC.h" // sd card - see https://randomnerdtutorials.com/esp32-cam-take-photo-save-microsd-card/
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#include <SPI.h>
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#include <FS.h> // gives file access
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#define SD_CS 5 // sd chip select pin = 5
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// MCP23017 IO expander
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#if useMCP23017 == 1
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#include <Wire.h>
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#include "Adafruit_MCP23017.h"
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Adafruit_MCP23017 mcp;
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// Wire.setClock(1700000); // set frequency to 1.7mhz
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#endif
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// Define global variables:
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uint32_t lastStatus = millis(); // last time status light changed status (to flash all ok led)
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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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int illuminationLEDstatus; // current brightness setting of the illumination led
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String spiffsFilename = "/image.jpg"; // image name to use when storing in spiffs
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// NTP - Internet time
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const char* ntpServer = "pool.ntp.org";
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const long gmtOffset_sec = 0;
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const int daylightOffset_sec = 3600;
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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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@ -143,6 +112,49 @@ 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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#include <WiFi.h>
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#include <WebServer.h>
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#include <HTTPClient.h> // used by requestWebPage()
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#include "driver/ledc.h" // used to configure pwm on illumination led
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// spiffs used to store images without an sd card
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#include <SPIFFS.h>
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#include <FS.h> // gives file access on spiffs
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WebServer server(80); // serve web pages on port 80
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// Used to disable brownout detection
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#include "soc/soc.h"
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#include "soc/rtc_cntl_reg.h"
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// sd-card
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#include "SD_MMC.h" // sd card - see https://randomnerdtutorials.com/esp32-cam-take-photo-save-microsd-card/
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#include <SPI.h>
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#include <FS.h> // gives file access
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#define SD_CS 5 // sd chip select pin = 5
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// MCP23017 IO expander on pins 12 and 13 (optional)
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#if useMCP23017 == 1
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#include <Wire.h>
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#include "Adafruit_MCP23017.h"
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Adafruit_MCP23017 mcp;
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// Wire.setClock(1700000); // set frequency to 1.7mhz
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#endif
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// Define some global variables:
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uint32_t lastStatus = millis(); // last time status light changed status (to flash all ok led)
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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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uint32_t illuminationLEDstatus; // current brightness setting of the illumination led
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String spiffsFilename = "/image.jpg"; // image name to use when storing in spiffs
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// ******************************************************************************************************************
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@ -163,7 +175,7 @@ void setup() {
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WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0); // Turn-off the 'brownout detector'
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// Define small indicator led
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// small indicator led on rear of esp32cam board
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pinMode(indicatorLED, OUTPUT);
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digitalWrite(indicatorLED,HIGH);
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@ -196,6 +208,13 @@ void setup() {
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server.on("/test", handleTest); // Testing procedure
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server.onNotFound(handleNotFound); // invalid url requested
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// NTP - internet time
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configTime(gmtOffset_sec, daylightOffset_sec, ntpServer);
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if (serialDebug) {
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Serial.print("Current time: ");
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Serial.println(localTime());
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}
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// set up camera
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if (serialDebug) Serial.print(("\nInitialising camera: "));
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if (setupCameraHardware()) {
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@ -239,7 +258,7 @@ void setup() {
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}
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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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// discover the number of image files already 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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@ -260,7 +279,7 @@ void setup() {
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if (serialDebug) Serial.printf("Image file count = %d \n",imageCounter);
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}
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// define io pins
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// define i/o pins
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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(iopinA, OUTPUT); // pin 13 - free io pin, can be used for input or output
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@ -285,7 +304,7 @@ void setup() {
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// read pin state with mcp.digitalRead(8)
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#endif
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illuminationSetup(); // configure PWM for the illumination/flash LED
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illuminationSetup(); // configure PWM for the illumination/flash LED
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if (serialDebug) Serial.println("\nSetup complete...");
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@ -316,8 +335,9 @@ void loop() {
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// // demo to 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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// if ( ((unsigned long)(millis() - lastCamera) >= 5000) && sdcardPresent ) {
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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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@ -383,7 +403,7 @@ bool setupCameraHardware() {
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// ----------------------------------------------------------------
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// -Change camera settings
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// -Change camera image settings
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// ----------------------------------------------------------------
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// Adjust image properties (brightness etc.)
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// Defaults to auto adjustments if exposure and gain are both set to zero
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@ -468,7 +488,7 @@ void illuminationSetup() {
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// set up the channel
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ledc_channel_config_t ledc_conf;
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ledc_conf.channel = LEDC_CHANNEL_5; // led channel to use (0 to 15)
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ledc_conf.duty = 0; // 0=off, 255=fully on
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// ledc_conf.duty = 0; // 0=off, 255=fully on
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ledc_conf.gpio_num = brightLED; // gpio pin
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ledc_conf.intr_type = LEDC_INTR_DISABLE;
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ledc_conf.speed_mode = LEDC_HIGH_SPEED_MODE;
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@ -489,13 +509,24 @@ void illuminationSetup() {
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// Set the illumination LED brightness (PWM)
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void illuminationBrightness(int duty) {
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void illuminationBrightness(uint32_t duty) {
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ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_5, duty);
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ledc_update_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_5);
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illuminationLEDstatus = duty; // store current brightness
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}
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// returns the current real time as a String
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// see: https://randomnerdtutorials.com/esp32-date-time-ntp-client-server-arduino/
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String localTime() {
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struct tm timeinfo;
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char ttime[40];
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if(!getLocalTime(&timeinfo)) return"Failed to obtain time";
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strftime(ttime,40, "%A, %B %d %Y %H:%M:%S", &timeinfo);
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return ttime;
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}
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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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@ -541,7 +572,7 @@ byte storeImage() {
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// save image to Spiffs
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if (!sdcardPresent) {
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if (serialDebug) Serial.println("Storing image to SIFFS only");
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if (serialDebug) Serial.println("Storing image to spiffs only");
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SPIFFS.remove(spiffsFilename); // delete old image file if it exists
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File file = SPIFFS.open(spiffsFilename, FILE_WRITE);
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if (!file) {
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Serial.println(" bytes");
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}
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} else {
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if (serialDebug) Serial.println("Error: writing image to Spiffs...will format and try again");
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if (serialDebug) Serial.println("Error: writing image to spiffs...will format and try again");
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if (!SPIFFS.format()) {
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if (serialDebug) Serial.println("Error: Unable to format Spiffs");
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return 0;
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}
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file = SPIFFS.open(spiffsFilename, FILE_WRITE);
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if (!file.write(fb->buf, fb->len)) {
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@ -608,7 +640,7 @@ byte 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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// web page with control buttons, links etc.
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void handleRoot() {
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@ -705,6 +737,9 @@ void handleRoot() {
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// illumination led brightness
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client.printf("<p>Illumination led set to %d</p>\n", illuminationLEDstatus);
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// Current real time
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client.print("<p>Current time: " + localTime() + "</p>\n");
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// // touch input on the two gpio pins
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// client.printf("<p>Touch on pin 12: %d </p>\n", touchRead(T5) );
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// client.printf("<p>Touch on pin 13: %d </p>\n", touchRead(T4) );
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@ -746,7 +781,7 @@ void handleRoot() {
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// ----------------------------------------------------------------
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// -photo save to sd card/spiffs i.e. http://x.x.x.x/photo
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// ----------------------------------------------------------------
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// Capture an image from camera and save to spiffs or sd card
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// web page to capture an image from camera and save to spiffs or sd card
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void handlePhoto() {
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@ -785,7 +820,7 @@ void handlePhoto() {
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// ----------------------------------------------------------------
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// -show images stored on sd card or SPIFFS i.e. http://x.x.x.x/img?img=x
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// -display image stored on sd card or SPIFFS i.e. http://x.x.x.x/img?img=x
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// ----------------------------------------------------------------
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// Display a previously stored image, default image = most recent
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// returns 1 if image displayed ok
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@ -893,6 +928,7 @@ 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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// ----------------------------------------------------------------
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//Demonstration on how to access raw RGB data from the camera
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// Notes:
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// You can send the entire image over the web 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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@ -1064,12 +1100,17 @@ void handleStream(){
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// ----------------------------------------------------------------
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// request a web page
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// ----------------------------------------------------------------
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// requests a web page and returns reply as a string
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// parameters = ip address, page to request, port to use (usually 80), maximum chars to receive e.g. "alanesq.com","/index.htm",80,600
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// parameters = ip address, page to request, port to use (usually 80), maximum chars to receive, ignore all in reply before this text
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// e.g. String q = requestWebPage("192.168.1.166","/log",80,600,"");
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String requestWebPage(String ip, String page, int port, int maxChars){
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String requestWebPage(String ip, String page, int port, int maxChars, String cuttoffText = ""){
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if (!page.startsWith("/")) page = "/" + page; // make sure page begins with "/"
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int maxWaitTime = 3000; // max time to wait for reply (ms)
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char received[maxChars + 1]; // temp store for incoming character data
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int received_counter = 0; // number of characters which have been received
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if (!page.startsWith("/")) page = "/" + page; // make sure page begins with "/"
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if (serialDebug) {
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Serial.print("requesting web page: ");
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@ -1093,39 +1134,42 @@ String requestWebPage(String ip, String page, int port, int maxChars){
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if (serialDebug) Serial.println("Request sent - waiting for reply...");
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// Wait for server to respond then read response
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int maxWaitTime = 3000; // max time to wait for reply (ms)
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int i = 0;
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while ((!client.available()) && (i < (maxWaitTime / 10) )) {
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// Wait for a response
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uint32_t ttimer = millis();
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while ( !client.available() && (uint32_t)(millis() - ttimer) < maxWaitTime ) {
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delay(10);
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i++;
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}
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// if reply received read data
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String wpage = "";
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// read response in to wpage
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while (client.available() > 0 && maxChars > 0) {
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wpage += char(client.read()); // read one character
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maxChars--;
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}
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//// alternative way to read the data
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// int rTimeout = 1500; // timeout waiting for reply data (ms)
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// client.setTimeout(rTimeout); // timeout for readString() command
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// String wpage = client.readString(); // just read all incoming data until timeout is reached
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// read the response
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while ( client.available() && received_counter < maxChars ) {
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#if defined ESP8266
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delay(2); // it just reads 255s on esp8266 if this delay is not included
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#endif
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received[received_counter] = char(client.read()); // read one character
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received_counter+=1;
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}
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received[received_counter] = '\0'; // end of string marker
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if (serialDebug) {
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Serial.println("--------received web page-----------");
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Serial.println(wpage);
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Serial.println(received);
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Serial.println("------------------------------------");
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Serial.flush(); // wait for data to finish sending
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Serial.flush(); // wait for serial data to finish sending
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}
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client.stop(); // close connection
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if (serialDebug) Serial.println("Connection closed");
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return wpage;
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// if cuttoffText was supplied then only return the text following this
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if (cuttoffText != "") {
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char* locus = strstr(received,cuttoffText.c_str()); // locus = pointer to the found text
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if (locus) { // if text was found
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if (serialDebug) Serial.println("The text '" + cuttoffText + "' was found in reply");
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return locus; // return the reply text following 'cuttoffText'
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} else if (serialDebug) Serial.println("The text '" + cuttoffText + "' WAS NOT found in reply");
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}
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return received; // return the full reply text
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}
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@ -1169,8 +1213,6 @@ void handleTest() {
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// demo useage of the mcp23017 io chip
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#if useMCP23017 == 1
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while(1) {
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