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esp32cam-demo
kopia lustrzana https://github.com/alanesq/esp32cam-demo
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Alan 2020-12-02 12:07:04 +00:00 zatwierdzone przez GitHub
rodzic 906404299c
commit a31a9baa53
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esp32cam-demo.ino
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@ -49,7 +49,7 @@
const char* stitle = "ESP32Cam-demo"; // title of this sketch
const char* sversion = "26Nov20"; // Sketch version
const bool debugInfo = 1; // show additional debug info. on serial port (1=enabled)
const bool serialDebug = 1; // show additional debug info. on serial port (1=enabled)
// Camera related
const bool flashRequired = 1; // If flash to be used when capturing image (1 = yes)
@ -424,9 +424,9 @@ void showError(int errorNo) {
bool storeImage() {
if (sdcardPresent) {
if (debugInfo) Serial.printf("Storing image #%d to sd card \n", imageCounter);
if (serialDebug) Serial.printf("Storing image #%d to sd card \n", imageCounter);
} else {
if (debugInfo) Serial.println("Storing image requested but there is no sd card");
if (serialDebug) Serial.println("Storing image requested but there is no sd card");
return 0; // no sd card available so exit procedure
}
@ -450,7 +450,7 @@ bool storeImage() {
flashLED(4);
} else {
if (file.write(fb->buf, fb->len)) { // File created ok so save image to it
if (debugInfo) Serial.println("Image saved to sd card");
if (serialDebug) Serial.println("Image saved to sd card");
tResult = 1; // set sucess flag
imageCounter ++; // increment image counter
} else {
@ -480,7 +480,7 @@ void handleRoot() {
WiFiClient client = server.client(); // open link with client
// log the page request including clients IP address
if (debugInfo) {
if (serialDebug) {
IPAddress cip = client.remoteIP();
Serial.printf("Root page requested from: %d.%d.%d.%d \n", cip[0], cip[1], cip[2], cip[3]);
}
@ -492,19 +492,19 @@ void handleRoot() {
// Note: if using an input box etc. you would read the value with the command: String Bvalue = server.arg("demobutton1");
if (server.hasArg("button1")) {
digitalWrite(iopinA,!digitalRead(iopinA)); // toggle output pin on/off
if (debugInfo) Serial.println("Button 1 pressed");
if (serialDebug) Serial.println("Button 1 pressed");
}
// if button2 was pressed (toggle io pin B)
if (server.hasArg("button2")) {
digitalWrite(iopinB,!digitalRead(iopinB)); // toggle output pin on/off
if (debugInfo) Serial.println("Button 2 pressed");
if (serialDebug) Serial.println("Button 2 pressed");
}
// if button3 was pressed (toggle flash LED)
if (server.hasArg("button3")) {
digitalWrite(brightLED,!digitalRead(brightLED)); // toggle flash LED on/off
if (debugInfo) Serial.println("Button 3 pressed");
if (serialDebug) Serial.println("Button 3 pressed");
}
// if exposure was adjusted - cameraImageExposure
@ -513,7 +513,7 @@ void handleRoot() {
if (Tvalue != NULL) {
int val = Tvalue.toInt();
if (val >= 0 && val <= 1200 && val != cameraImageExposure) {
if (debugInfo) Serial.printf("Exposure changed to %d\n", val);
if (serialDebug) Serial.printf("Exposure changed to %d\n", val);
cameraImageExposure = val;
cameraImageSettings(); // Apply camera image settings
}
@ -526,7 +526,7 @@ void handleRoot() {
if (Tvalue != NULL) {
int val = Tvalue.toInt();
if (val >= 0 && val <= 31 && val != cameraImageGain) {
if (debugInfo) Serial.printf("Gain changed to %d\n", val);
if (serialDebug) Serial.printf("Gain changed to %d\n", val);
cameraImageGain = val;
cameraImageSettings(); // Apply camera image settings
}
@ -612,7 +612,7 @@ void handlePhoto() {
WiFiClient client = server.client(); // open link with client
// log page request including clients IP address
if (debugInfo) {
if (serialDebug) {
IPAddress cip = client.remoteIP();
Serial.printf("Photo requested from: %d.%d.%d.%d \n", cip[0], cip[1], cip[2], cip[3]);
}
@ -651,7 +651,7 @@ bool handleImg() {
WiFiClient client = server.client(); // open link with client
// log page request including clients IP address
if (debugInfo) {
if (serialDebug) {
IPAddress cip = client.remoteIP();
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");
@ -666,7 +666,7 @@ bool handleImg() {
if (imgToShow < 1 || imgToShow > imageCounter) imgToShow = imageCounter; // validate image number
}
if (debugInfo) Serial.printf("Displaying image #%d from sd card", imgToShow);
if (serialDebug) Serial.printf("Displaying image #%d from sd card", imgToShow);
String tFileName = "/img/" + String(imgToShow) + ".jpg";
fs::FS &fs = SD_MMC; // sd card file system
@ -675,7 +675,7 @@ bool handleImg() {
size_t sent = server.streamFile(timg, "image/jpeg"); // send the image
timg.close();
} else {
if (debugInfo) Serial.println("Error: image file not found");
if (serialDebug) Serial.println("Error: image file not found");
WiFiClient client = server.client(); // open link with client
client.write("<!DOCTYPE html> <html> <body>\n");
client.write("<p>Error: Image not found</p?\n");
@ -699,7 +699,7 @@ void handleNotFound() {
String tReply;
// log page request
if (debugInfo) {
if (serialDebug) {
Serial.print("Invalid page requested");
}
@ -743,7 +743,7 @@ void readRGBImage() {
WiFiClient client = server.client(); // open link with client
// log page request including clients IP address
if (debugInfo) {
if (serialDebug) {
IPAddress cip = client.remoteIP();
Serial.printf("RGB requested from: %d.%d.%d.%d \n", cip[0], cip[1], cip[2], cip[3]);
}
@ -830,7 +830,7 @@ void readRGBImage() {
// send line of text to both serial port and web page
void MessageRGB(WiFiClient &client, String theText) {
client.print(theText + "<br>\n");
if (debugInfo || theText.indexOf('error') > 0) Serial.println(theText);
if (serialDebug || theText.indexOf('error') > 0) Serial.println(theText);
}
@ -847,7 +847,7 @@ void handleStream(){
WiFiClient client = server.client(); // open link with client
// log page request including clients IP address
if (debugInfo) {
if (serialDebug) {
IPAddress cip = client.remoteIP();
Serial.printf("Video stream requested from: %d.%d.%d.%d \n", cip[0], cip[1], cip[2], cip[3]);
}
@ -885,7 +885,7 @@ void handleStream(){
esp_camera_fb_return(fb); // return image so memory can be released
}
if (debugInfo) Serial.println("Video stream stopped");
if (serialDebug) Serial.println("Video stream stopped");
delay(3);
client.stop();
@ -893,37 +893,81 @@ void handleStream(){
} // handleStream
// ----------------------------------------------------------------
// -request a web page (wifi client)
// ----------------------------------------------------------------
// usage example: String q = requestWebPage("http://192.168.1.176:80/index.htm");
// original code from: https://techtutorialsx.com/2017/05/19/esp32-http-get-requests/
// ******************************************************************************************************************
String requestWebPage(String urlRequested) {
// ----------------------------------------------------------------
// request a web page
// ----------------------------------------------------------------
// requests a web page and returns reply as a string
// parameters = ip address, page to request, port to use (usually 80), maximum chars to receive e.g. "alanesq.com","/index.htm",80,600
String requestWebPage(String ip, String page, int port, int maxChars){
if (!page.startsWith("/")) page = "/" + page; // make sure page begins with "/"
if (serialDebug) {
Serial.print("requesting web page: ");
Serial.print(ip);
Serial.println(page);
}
WiFiClient client;
// Connect to the site
if (!client.connect(ip.c_str() , port)) {
if (serialDebug) Serial.println("Web client connection failed");
return "web client connection failed";
}
if (serialDebug) Serial.println("Connected to host - sending request...");
// send request - A basic request looks something like: "GET /index.html HTTP/1.1\r\nHost: 192.168.0.4:8085\r\n\r\n"
client.print("GET " + page + " HTTP/1.1\r\n" +
"Host: " + ip + "\r\n" +
"Connection: close\r\n\r\n");
if ((WiFi.status() != WL_CONNECTED)) return "ERROR: Network not connected";
if (serialDebug) Serial.println("Request sent - waiting for reply...");
HTTPClient http;
String payload;
http.begin(urlRequested); //Specify the URL
int httpCode = http.GET(); //Make the request
if (httpCode > 0) { //Check for the returning code
payload = http.getString();
if (debugInfo) Serial.println(httpCode);
if (debugInfo) Serial.println(payload);
// Wait for server to respond then read response
int maxWaitTime = 3000; // max time to wait for reply (ms)
int i = 0;
while ((!client.available()) && (i < (maxWaitTime / 10) )) {
delay(10);
i++;
}
else {
Serial.println("Error on HTTP request");
}
http.end(); //Free the resources
return payload;
// if reply received read data
String wpage = "";
// read response in to wpage
while (client.available() > 0 && maxChars > 0) {
#if defined ESP8266
delay(2); // just reads 255s on esp8266 if this delay is not included (not sure about esp32S?)
#endif
wpage += char(client.read()); // read one character
maxChars--;
}
//// alternative way to read the data
// int rTimeout = 1500; // timeout waiting for reply data (ms)
// client.setTimeout(rTimeout); // timeout for readString() command
// String wpage = client.readString(); // just read all incoming data until timeout is reached
if (serialDebug) {
Serial.println("--------received web page-----------");
Serial.println(wpage);
Serial.println("------------------------------------");
Serial.flush(); // wait for data to finish sending
}
client.stop(); // close connection
if (serialDebug) Serial.println("Connection closed");
return wpage;
}
// ******************************************************************************************************************
@ -936,7 +980,7 @@ void handleTest() {
WiFiClient client = server.client(); // open link with client
// log page request including clients IP address
if (debugInfo) {
if (serialDebug) {
IPAddress cip = client.remoteIP();
Serial.printf("Test requested from: %d.%d.%d.%d \n", cip[0], cip[1], cip[2], cip[3]);
}