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esp32cam-demo
kopia lustrzana https://github.com/alanesq/esp32cam-demo
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Update esp32cam-demo.ino

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Alan 2022-01-23 10:30:05 +00:00 zatwierdzone przez GitHub
rodzic 586b4b7fc7
commit 2f0fe02b8e
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esp32cam-demo.ino
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@ -77,6 +77,7 @@
void brightLed(byte ledBrightness);
void setupFlashPWM();
void changeResolution(framesize_t);
void handleData();
// ---------------------------------------------------------------
@ -84,10 +85,12 @@
// ---------------------------------------------------------------
const char* stitle = "ESP32Cam-demo"; // title of this sketch
const char* sversion = "20Jan22"; // Sketch version
const char* sversion = "23Jan22"; // Sketch version
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
uint16_t datarefresh = 2200; // how often to refresh data on root web page (ms)
const bool serialDebug = 1; // show debug info. on serial port (1=enabled, disable if using pins 1 and 3 as gpio)
#define useMCP23017 0 // if MCP23017 IO expander chip is being used (on pins 12 and 13)
@ -102,6 +105,7 @@
#define PIXFORMAT PIXFORMAT_JPEG; // image format, Options = YUV422, GRAYSCALE, RGB565, JPEG, RGB888
int cameraImageExposure = 0; // Camera exposure (0 - 1200) If gain and exposure both set to zero then auto adjust is enabled
int cameraImageGain = 0; // Image gain (0 - 30)
int cameraImageBrightness = 0; // Image brightness (-2 to +2)
const int TimeBetweenStatus = 600; // speed of flashing system running ok status light (milliseconds)
@ -188,7 +192,7 @@ WebServer server(80); // serve web pages on port 80
bool sdcardPresent; // flag if an sd card is detected
int imageCounter; // image file name on sd card counter
String spiffsFilename = "/image.jpg"; // image name to use when storing in spiffs
String ImageResDetails = "Unknown"; // image resolution info
// ******************************************************************************************************************
@ -239,6 +243,7 @@ void setup() {
// define the web pages (i.e. call these procedures when url is requested)
server.on("/", handleRoot); // root page
server.on("/data", handleData); // suplies data to periodically update root (AJAX)
server.on("/jpg", handleJPG); // capture image and send as jpg
server.on("/stream", handleStream); // stream live video
server.on("/photo", handlePhoto); // save image to sd card
@ -480,11 +485,13 @@ bool cameraImageSettings() {
s->set_gain_ctrl(s, 1); // auto gain on
s->set_exposure_ctrl(s, 1); // auto exposure on
s->set_awb_gain(s, 1); // Auto White Balance enable (0 or 1)
s->set_brightness(s, cameraImageBrightness); // (-2 to 2) - set brightness
} else {
// Apply manual settings
s->set_gain_ctrl(s, 0); // auto gain off
s->set_awb_gain(s, 1); // Auto White Balance enable (0 or 1)
s->set_exposure_ctrl(s, 0); // auto exposure off
s->set_brightness(s, cameraImageBrightness); // (-2 to 2) - set brightness
s->set_agc_gain(s, cameraImageGain); // set gain manually (0 - 30)
s->set_aec_value(s, cameraImageExposure); // set exposure manually (0-1200)
}
@ -555,7 +562,7 @@ String localTime() {
struct tm timeinfo;
char ttime[40];
if(!getLocalTime(&timeinfo)) return"Failed to obtain time";
strftime(ttime,40, "%A, %B %d %Y %H:%M:%S", &timeinfo);
strftime(ttime,40, "%A %B %d %Y %H:%M:%S", &timeinfo);
return ttime;
}
@ -641,6 +648,7 @@ void changeResolution(framesize_t tRes = FRAMESIZE_96X96) {
FRAME_SIZE_IMAGE = tRes;
initialiseCamera();
if (serialDebug) Serial.println("Camera resolution changed to " + String(tRes));
ImageResDetails = "Unknown"; // set next time image captured
}
@ -729,6 +737,95 @@ byte storeImage() {
// ******************************************************************************************************************
// ----------------------------------------------------------------
// -Action any user input on root web page
// ----------------------------------------------------------------
void rootUserInput(WiFiClient &client) {
// if button1 was pressed (toggle io pin A)
// Note: if using an input box etc. you would read the value with the command: String Bvalue = server.arg("demobutton1");
// if button1 was pressed (toggle io pin B)
if (server.hasArg("button1")) {
if (serialDebug) Serial.println("Button 1 pressed");
digitalWrite(iopinB,!digitalRead(iopinB)); // toggle output pin on/off
}
// if button2 was pressed (Cycle illumination LED)
if (server.hasArg("button2")) {
if (serialDebug) Serial.println("Button 2 pressed");
if (brightLEDbrightness == 0) brightLed(10); // turn led on dim
else if (brightLEDbrightness == 10) brightLed(40); // turn led on medium
else if (brightLEDbrightness == 40) brightLed(255); // turn led on full
else brightLed(0); // turn led off
}
// if button3 was pressed (toggle flash)
if (server.hasArg("button3")) {
if (serialDebug) Serial.println("Button 3 pressed");
flashRequired = !flashRequired;
}
// if button3 was pressed (format SPIFFS)
if (server.hasArg("button4")) {
if (serialDebug) Serial.println("Button 4 pressed");
if (!SPIFFS.format()) {
if (serialDebug) Serial.println("Error: Unable to format Spiffs");
} else {
if (serialDebug) Serial.println("Spiffs memory has been formatted");
}
}
// if button4 was pressed (change resolution)
if (server.hasArg("button5")) {
if (serialDebug) Serial.println("Button 5 pressed");
changeResolution(); // cycle through some options
}
// if brightness was adjusted - cameraImageBrightness
if (server.hasArg("bright")) {
String Tvalue = server.arg("bright"); // read value
if (Tvalue != NULL) {
int val = Tvalue.toInt();
if (val >= -2 && val <= 2 && val != cameraImageBrightness) {
if (serialDebug) Serial.printf("Brightness changed to %d\n", val);
cameraImageBrightness = val;
cameraImageSettings(); // Apply camera image settings
}
}
}
// if exposure was adjusted - cameraImageExposure
if (server.hasArg("exp")) {
if (serialDebug) Serial.println("Exposure has been changed");
String Tvalue = server.arg("exp"); // read value
if (Tvalue != NULL) {
int val = Tvalue.toInt();
if (val >= 0 && val <= 1200 && val != cameraImageExposure) {
if (serialDebug) Serial.printf("Exposure changed to %d\n", val);
cameraImageExposure = val;
cameraImageSettings(); // Apply camera image settings
}
}
}
// if image gain was adjusted - cameraImageGain
if (server.hasArg("gain")) {
if (serialDebug) Serial.println("Gain has been changed");
String Tvalue = server.arg("gain"); // read value
if (Tvalue != NULL) {
int val = Tvalue.toInt();
if (val >= 0 && val <= 31 && val != cameraImageGain) {
if (serialDebug) Serial.printf("Gain changed to %d\n", val);
cameraImageGain = val;
cameraImageSettings(); // Apply camera image settings
}
}
}
}
// ----------------------------------------------------------------
// -root web page requested i.e. http://x.x.x.x/
// ----------------------------------------------------------------
@ -739,80 +836,15 @@ void handleRoot() {
getNTPtime(2); // refresh current time from NTP server
WiFiClient client = server.client(); // open link with client
rootUserInput(client); // Action any user input from this web page
// Action any user input on web page
// if button1 was pressed (toggle io pin A)
// Note: if using an input box etc. you would read the value with the command: String Bvalue = server.arg("demobutton1");
// if button1 was pressed (toggle io pin B)
if (server.hasArg("button1")) {
if (serialDebug) Serial.println("Button 1 pressed");
digitalWrite(iopinB,!digitalRead(iopinB)); // toggle output pin on/off
}
// if button2 was pressed (toggle flash LED)
if (server.hasArg("button2")) {
if (serialDebug) Serial.println("Button 2 pressed");
if (brightLEDbrightness == 0) brightLed(10); // turn led on dim
else if (brightLEDbrightness == 10) brightLed(40); // turn led on medium
else if (brightLEDbrightness == 40) brightLed(255); // turn led on full
else brightLed(0); // turn led off
}
// if button3 was pressed (format SPIFFS)
if (server.hasArg("button3")) {
if (serialDebug) Serial.println("Button 3 pressed");
if (!SPIFFS.format()) {
if (serialDebug) Serial.println("Error: Unable to format Spiffs");
} else {
if (serialDebug) Serial.println("Spiffs memory has been formatted");
}
}
// if button4 was pressed (change resolution)
if (server.hasArg("button4")) {
if (serialDebug) Serial.println("Button 4 pressed");
changeResolution(); // cycle through some options
}
// if exposure was adjusted - cameraImageExposure
if (server.hasArg("exp")) {
if (serialDebug) Serial.println("Exposure has been changed");
String Tvalue = server.arg("exp"); // read value
if (Tvalue != NULL) {
int val = Tvalue.toInt();
if (val >= 0 && val <= 1200 && val != cameraImageExposure) {
if (serialDebug) Serial.printf("Exposure changed to %d\n", val);
cameraImageExposure = val;
cameraImageSettings(); // Apply camera image settings
}
}
}
// if image gain was adjusted - cameraImageGain
if (server.hasArg("gain")) {
if (serialDebug) Serial.println("Gain has been changed");
String Tvalue = server.arg("gain"); // read value
if (Tvalue != NULL) {
int val = Tvalue.toInt();
if (val >= 0 && val <= 31 && val != cameraImageGain) {
if (serialDebug) Serial.printf("Gain changed to %d\n", val);
cameraImageGain = val;
cameraImageSettings(); // Apply camera image settings
}
}
}
// html header
// html header
sendHeader(client, "ESP32Cam demo sketch");
client.write("<FORM action='/' method='post'>\n"); // used by the buttons in the html (action = the web page to send it to
// --------------------------------------------------------------------
// html main body
// Info on the arduino ethernet library: https://www.arduino.cc/en/Reference/Ethernet
// Info in HTML: https://www.w3schools.com/html/
@ -820,44 +852,83 @@ void handleRoot() {
// Verify your HTML is valid: https://validator.w3.org/
client.write("<h1>Hello from ESP32Cam</h1>\n");
client.write("Sketch from: github.com/alanesq/esp32cam-demo<br>");
// Page title
client.printf("<h1 style='color:red;'>%s</H1>\n", stitle);
client.write("Sketch from: github.com/alanesq/esp32cam-demo<br>");
// sd card details
if (sdcardPresent) client.printf("<p>SD Card detected - %d images stored</p>\n", imageCounter);
else client.write("<p>No SD Card detected</p>\n");
// ---------------------------------------------------------------------------------------------
// info which is periodically updated usin AJAX - https://www.w3schools.com/xml/ajax_intro.asp
// io pin details
if (digitalRead(iopinA) == LOW) client.write("<p>Input Pin 13 is Low</p>\n");
else client.write("<p>Input Pin 13 is High</p>\n");
// sd card
if (!sdcardPresent) {
client.println("<p style='color:blue;'>NO SD CARD DETECTED<span id=uImages></span><span id=uUsed></span><span id=uRemain></span></p>"); // spans will be left empty
} else {
client.println("<p>SD Card: <span id=uImages> - </span> images stored, <span id=uUsed> - </span>MB used , <span id=uRemain> - </span>MB remaining</p>\n");
}
if (digitalRead(iopinB) == LOW) client.write("<p>Output Pin 12 is Low</p>\n");
else client.write("<p>Output Pin 12 is High</p>\n");
// illumination/flash led
client.println("Illumination led brightness=<span id=uBrightness> - </span>, Flash is <span id=uFlash> - </span>");
// illumination led brightness
client.printf("<p>Illumination led set to %d</p>\n", brightLEDbrightness);
// Current real time
client.println("<br>Current time: <span id=uTime> - </span>");
// gpio pin status
client.print("<br>GPIO output pin 12 is: <span id=uGPIO12> - </span>, GPIO input pin 13 is: <span id=uGPIO13> - </span>");
// image resolution
client.println("<br>Image size: <span id=uRes> - </span>");
// Javascript - to periodically update above getting info from http://x.x.x.x/data
client.printf(R"=====(
<script>
function getData() {
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
var receivedArr = this.responseText.split(',');
document.getElementById('uImages').innerHTML = receivedArr[0];
document.getElementById('uUsed').innerHTML = receivedArr[1];
document.getElementById('uRemain').innerHTML = receivedArr[2];
document.getElementById('uBrightness').innerHTML = receivedArr[3];
document.getElementById('uTime').innerHTML = receivedArr[4];
document.getElementById('uGPIO12').innerHTML = receivedArr[5];
document.getElementById('uGPIO13').innerHTML = receivedArr[6];
document.getElementById('uFlash').innerHTML = receivedArr[7];
document.getElementById('uRes').innerHTML = receivedArr[8];
}
};
xhttp.open('GET', 'data', true);
xhttp.send();}
getData();
setInterval(function() { getData(); }, %d);
</script>
)=====", datarefresh);
// ---------------------------------------------------------------------------------------------
// Current real time
client.print("<p>Current time: " + localTime() + "</p>\n");
// // touch input on the two gpio pins
// client.printf("<p>Touch on pin 12: %d </p>\n", touchRead(T5) );
// client.printf("<p>Touch on pin 13: %d </p>\n", touchRead(T4) );
// Control bottons
// Control buttons
client.write("<br><br>");
client.write("<input style='height: 35px;' name='button1' value='Toggle pin 12' type='submit'> \n");
client.write("<input style='height: 35px;' name='button2' value='Toggle Flash' type='submit'> \n");
client.write("<input style='height: 35px;' name='button3' value='Wipe SPIFFS memory' type='submit'> \n");
client.write("<input style='height: 35px;' name='button4' value='Change Resolution' type='submit'><br> \n");
client.write("<input style='height: 35px;' name='button2' value='Cycle illumination LED' type='submit'> \n");
client.write("<input style='height: 35px;' name='button3' value='Toggle Flash' type='submit'> \n");
client.write("<input style='height: 35px;' name='button4' value='Wipe SPIFFS memory' type='submit'> \n");
client.write("<input style='height: 35px;' name='button5' value='Change Resolution' type='submit'><br> \n");
// Image setting controls
client.write("<br>CAMERA SETTINGS: \n");
client.printf("Exposure: <input type='number' style='width: 50px' name='exp' min='0' max='1200' value='%d'> \n", cameraImageExposure);
client.printf("Gain: <input type='number' style='width: 50px' name='gain' min='0' max='30' value='%d'>\n", cameraImageGain);
client.write(" - Set both to zero for auto adjust<br>\n");
client.println("<br>CAMERA SETTINGS: ");
client.printf("Brightness: <input type='number' style='width: 50px' name='bright' title='from -2 to +2' min='-2' max='2' value='%d'> \n", cameraImageBrightness);
client.printf("Exposure: <input type='number' style='width: 50px' name='exp' title='from 0 to 1200' min='0' max='1200' value='%d'> \n", cameraImageExposure);
client.printf("Gain: <input type='number' style='width: 50px' name='gain' title='from 0 to 30' min='0' max='30' value='%d'>\n", cameraImageGain);
client.println(" <input type='submit' name='submit' value='Submit change / Refresh Image'>");
client.println("<br>Set exposure and gain to zero for auto adjust");
// links to the other pages available
client.write("<br>LINKS: \n");
client.write("<br><br>LINKS: \n");
client.write("<a href='/photo'>Capture an image</a> - \n");
client.write("<a href='/img'>View stored image</a> - \n");
client.write("<a href='/rgb'>Capture Image as raw RGB data</a> - \n");
@ -877,6 +948,47 @@ void handleRoot() {
} // handleRoot
// ----------------------------------------------------------------
// -data web page requested i.e. http://x.x.x.x/data
// ----------------------------------------------------------------
// suplies changing info to update root web page as comma seperated String
void handleData(){
// sd sdcard
uint32_t SDusedSpace = 0;
uint32_t SDtotalSpace = 0;
uint32_t SDfreeSpace = 0;
if (sdcardPresent) {
SDusedSpace = SD_MMC.usedBytes() / (1024 * 1024);
SDtotalSpace = SD_MMC.totalBytes() / (1024 * 1024);
SDfreeSpace = SDtotalSpace - SDusedSpace;
}
String reply = "";
if (sdcardPresent) reply += String(imageCounter); // images stored
reply += ",";
if (sdcardPresent) reply += String(SDusedSpace); // space used on sd card
reply += ",";
if (sdcardPresent) reply += String(SDfreeSpace); // space remaining on sd card
reply += ",";
reply += String(brightLEDbrightness); // illumination led brightness
reply += ",";
reply += localTime(); // current date/time
reply += ",";
reply += (digitalRead(iopinB)==1) ? "ON" : "OFF"; // output gpio pin status
reply += ",";
reply += (digitalRead(iopinA)==1) ? "ON" : "OFF"; // output gpio pin status
reply += ",";
reply += (flashRequired==1) ? "ON" : "OFF"; // if flash is enabled
reply += ",";
reply += ImageResDetails; // if flash is enabled
//reply += ",";
server.send(200, "text/plane", reply); //Send millis value only to client ajax request
}
// ******************************************************************************************************************
@ -1222,15 +1334,17 @@ bool handleJPG() {
WiFiClient client = server.client(); // open link with client
char buf[32];
camera_fb_t * fb = NULL; // pointer for image frame buffer
// capture the jpg image from camera
fb = esp_camera_fb_get();
camera_fb_t * fb = esp_camera_fb_get();
if (!fb) {
if (serialDebug) Serial.println("Error: failed to capture image");
return 0;
}
// store image resolution info.
ImageResDetails = String(fb->width) + "x" + String(fb->height);
// html to send a jpg
const char HEADER[] = "HTTP/1.1 200 OK\r\nAccess-Control-Allow-Origin: *\r\n";
const char CTNTTYPE[] = "Content-Type: image/jpeg\r\nContent-Length: ";