kopia lustrzana https://github.com/alanesq/esp32cam-demo
Update esp32cam-demo.ino
Alan
GitHub
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6a4d9cee32
commit
4b032d384b
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@ -14,7 +14,6 @@
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*
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* GPIO:
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* You can use io pins 13 and 12 for input or output (but 12 must not be high at boot)
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* pin 16 is used for psram but you may get away with using it as input for a button but not recommended
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* You could also use pins 1 & 3 if you do not use Serial (disable serialDebug in the settings below)
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* Pins 14, 2 & 15 should be ok to use if you are not using an SD Card
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* More info: https://randomnerdtutorials.com/esp32-cam-ai-thinker-pinout/
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@ -31,8 +30,6 @@
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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 and motion detection
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*
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* Sending image to TFT display see: https://www.survivingwithandroid.com/esp32-cam-tft-display-picture-st7735/
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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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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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@ -43,6 +40,7 @@
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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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// ---------------------------------------------------------------------------------------------------------
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@ -79,30 +77,14 @@
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void brightLed(byte ledBrightness);
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// ---------------------------------------------------------------
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#include "esp_camera.h" // https://github.com/espressif/esp32-camera
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// #include "camera_pins.h"
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#include <base64.h> // for encoding buffer to display image on page
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#include <WiFi.h>
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#include <WebServer.h>
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#include <HTTPClient.h>
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#include "driver/ledc.h" // used to configure pwm on illumination led
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// spiffs used to store images if no sd card present
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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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// -SETTINGS
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// ---------------------------------------------------------------
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const char* stitle = "ESP32Cam-demo"; // title of this sketch
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const char* sversion = "17Jan22"; // Sketch version
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const char* sversion = "18Jan22"; // Sketch version
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bool sendRGBfile = 0; // if set '/rgb' will send the rgb data as a file rather than display a HTML page
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bool sendRGBfile = 0; // if set '/rgb' will just return raw rgb data which can be saved as a file rather than display a HTML pag
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const bool serialDebug = 1; // show debug info. on serial port (1=enabled, disable if using pins 1 and 3 as gpio)
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@ -123,7 +105,7 @@
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const int indicatorLED = 33; // onboard small LED pin (33)
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// Bright LED
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// Bright LED (Flash)
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const int brightLED = 4; // onboard Illumination/flash LED pin (4)
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int brightLEDbrightness = 0; // initial brightness (0 - 255)
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const int ledFreq = 5000; // PWM settings
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@ -132,7 +114,6 @@
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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 iopinC = 16; // input only pin 16 (used by PSRam but you may get away with using it for a button)
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const int serialSpeed = 115200; // Serial data speed to use
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@ -168,8 +149,19 @@
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// ******************************************************************************************************************
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//#include "esp_camera.h" // https://github.com/espressif/esp32-camera
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// #include "camera_pins.h"
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#include <base64.h> // for encoding buffer to display image on page
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#include <WiFi.h>
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#include <WebServer.h>
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#include <HTTPClient.h>
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#include "driver/ledc.h" // used to configure pwm on illumination led
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WebServer server(80); // serve web pages on port 80
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// spiffs used to store images if no sd card present
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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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@ -332,7 +324,6 @@ void setup() {
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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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pinMode(iopinB, OUTPUT); // pin 12 - free io pin, can be used for input or output (must not be high at boot)
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pinMode(iopinC, INPUT); // pin 16 - free input only pin (may cause issues?)
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// MCP23017 io expander (requires adafruit MCP23017 library)
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#if useMCP23017 == 1
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@ -571,7 +562,7 @@ void flashLED(int reps) {
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// send a standard html header (i.e. start of web page)
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void sendHeader(WiFiClient &client) {
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void sendHeader(WiFiClient &client, String wTitle) {
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client.write("HTTP/1.1 200 OK\r\n");
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client.write("Content-Type: text/html\r\n");
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client.write("Connection: close\r\n");
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@ -580,6 +571,7 @@ void sendHeader(WiFiClient &client) {
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client.write("<html lang='en'>\n");
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client.write("<head>\n");
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client.write("<meta name='viewport' content='width=device-width, initial-scale=1.0'>\n");
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client.print("<title>" + wTitle + "</title> </head> <body>\n");
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}
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@ -624,28 +616,28 @@ 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 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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SPIFFS.remove(spiffsFilename); // if file name already exists delete it
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File file = SPIFFS.open(spiffsFilename, FILE_WRITE); // create new file
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if (!file) {
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if (serialDebug) Serial.println("Failed to create file in Spiffs - will format and try again");
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if (!SPIFFS.format()) {
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if (!SPIFFS.format()) { // format spiffs
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if (serialDebug) Serial.println("Spiffs format failed");
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} else {
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file = SPIFFS.open(spiffsFilename, FILE_WRITE);
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file = SPIFFS.open(spiffsFilename, FILE_WRITE); // try again to create new file
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if (!file) {
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if (serialDebug) Serial.println("Still unable to create file in spiffs");
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}
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}
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}
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if (file) { // if file has been created ok write data to it
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if (file) { // if file has been created ok write image data to it
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if (file.write(fb->buf, fb->len)) {
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sRes = 1; // flag as saved ok
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} else {
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if (serialDebug) Serial.println("Error: writing image to spiffs file");
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if (serialDebug) Serial.println("Error: failed to write image data to spiffs file");
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}
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}
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if (sRes == 1 && serialDebug) {
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Serial.print("The picture has been saved as " + spiffsFilename);
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if (sRes == 1 && serialDebug) {
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Serial.print("The picture has been saved to Spiffs as " + spiffsFilename);
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Serial.print(" - Size: ");
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Serial.print(file.size());
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Serial.println(" bytes");
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@ -667,7 +659,7 @@ byte storeImage() {
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imageCounter ++; // increment image counter
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sRes = 2; // flag as saved ok
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} else {
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if (serialDebug) Serial.println("Error: failed to save image to sd card");
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if (serialDebug) Serial.println("Error: failed to save image data file on sd card");
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}
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file.close(); // close image file on sd card
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}
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@ -680,7 +672,6 @@ byte storeImage() {
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} // storeImage
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// ******************************************************************************************************************
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@ -692,11 +683,10 @@ byte storeImage() {
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void handleRoot() {
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getNTPtime(2); // refresh current time from NTP server
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WiFiClient client = server.client(); // open link with client
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// Action any button presses or settings entered on web page
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// Action any user input on 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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@ -760,9 +750,8 @@ void handleRoot() {
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// html header
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sendHeader(client);
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client.write("<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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sendHeader(client, "ESP32Cam demo sketch");
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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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// --------------------------------------------------------------------
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@ -776,6 +765,7 @@ void handleRoot() {
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client.write("<h1>Hello from ESP32Cam</h1>\n");
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client.write("Sketch from: github.com/alanesq/esp32cam-demo<br>");
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// sd card details
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if (sdcardPresent) client.printf("<p>SD Card detected - %d images stored</p>\n", imageCounter);
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@ -788,9 +778,6 @@ void handleRoot() {
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if (digitalRead(iopinB) == LOW) client.write("<p>Output Pin 12 is Low</p>\n");
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else client.write("<p>Output Pin 12 is High</p>\n");
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if (digitalRead(iopinC) == LOW) client.write("<p>Input Pin 16 is Low</p>\n");
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else client.write("<p>Input Pin 16 is High</p>\n");
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// illumination led brightness
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client.printf("<p>Illumination led set to %d</p>\n", brightLEDbrightness);
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@ -849,13 +836,10 @@ void handlePhoto() {
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IPAddress cIP = client.remoteIP();
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if (serialDebug) Serial.println("Save photo requested by " + cIP.toString());
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// save an image to sd card or spiffs
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byte sRes = storeImage(); // save an image to sd card or spiffs (store sucess or failed flag - 0=fail, 1=spiffs only, 2=spiffs and sd card)
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byte sRes = storeImage(); // capture and save an image to sd card or spiffs (store sucess or failed flag - 0=fail, 1=spiffs only, 2=spiffs and sd card)
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// html header
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sendHeader(client);
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client.write("<title>photo</title> </head> <body>\n"); // basic html header
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sendHeader(client, "Capture and save image");
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// html body
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if (sRes == 2) {
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@ -863,10 +847,13 @@ void handlePhoto() {
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} else if (sRes == 1) {
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client.write("<p>Image saved in Spiffs</p>\n");
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} else {
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client.write("<p>Error: Failed to save image to sd card</p>\n");
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client.write("<p>Error: Failed to save image</p>\n");
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}
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client.write("<a href='/'>Return</a>\n"); // link back
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sendFooter(client); // close web page
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client.write("<a href='/'>Return</a>\n"); // link back
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// close web page
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sendFooter(client);
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} // handlePhoto
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@ -995,8 +982,7 @@ void readRGBImage() {
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if (!sendRGBfile) {
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// html header
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sendHeader(client);
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client.write("<title>Show RGB data</title> </head> <body>\n"); // basic html header
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sendHeader(client, "Show RGB data");
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// page title including clients IP
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IPAddress cIP = client.remoteIP();
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@ -1027,10 +1013,11 @@ void readRGBImage() {
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sendText(client,"-Image size=" + String(fb->len) + " bytes");
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}
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// display captured image using base64
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if (!sendRGBfile) {
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client.println("<br><img src='data:image/png;base64," + base64::encode(fb->buf, fb->len) + "'><br>");
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}
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// display captured image using base64 - probably not a good idea with large images?
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if (!sendRGBfile) {
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client.print("<br>Displaying image direct from frame buffer:");
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client.println("<br><img src='data:image/png;base64," + base64::encode(fb->buf, fb->len) + "'><br>");
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}
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// allocate memory to store the rgb data (in psram, 3 bytes per pixel)
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sendText(client,"<br>Free psram before rgb data allocated = " + String(heap_caps_get_free_size(MALLOC_CAP_SPIRAM) / 1024) + "K");
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@ -1070,7 +1057,7 @@ void readRGBImage() {
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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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sendText(client,"<br>R , G , B - for first " + String(resultsToShow) + " pixels of image");
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sendText(client,"<br>R,G,B data for first " + String(resultsToShow / 3) + " pixels of image");
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for (uint32_t i = 0; i < resultsToShow-2; i+=3) {
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sendText(client,String(rgb[i+2]) + "," + String(rgb[i+1]) + "," + String(rgb[i+0])); // Red , Green , Blue
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// // calculate the x and y coordinate of the current pixel
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@ -1294,8 +1281,7 @@ void handleTest() {
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if (serialDebug) Serial.println("Test page requested by " + cIP.toString());
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// html header
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sendHeader(client);
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client.write("<title>photo</title> </head> <body>\n"); // basic html header
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sendHeader(client, "Testing");
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// html body
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