Update ESP32cam-demo.ino

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Alan 2023-10-14 10:20:33 +01:00 zatwierdzone przez GitHub
rodzic e6b72fd8bc
commit 6121a28752
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1 zmienionych plików z 27 dodań i 28 usunięć

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@ -54,34 +54,33 @@
// ---------------------------------------------------------------------------------------------------------
/*
// Required by PlatformIO
#include <Arduino.h>
// forward declarations
bool initialiseCamera();
bool initialiseCamera(int);
bool cameraImageSettings();
String localTime();
void flashLED(int reps);
void flashLED(int);
byte storeImage();
void handleRoot();
void handlePhoto();
bool handleImg();
void handleNotFound();
void readRGBImage();
bool getNTPtime(int sec);
bool getNTPtime(int);
bool handleJPG();
bool handleJpeg();
void handleJpeg();
void handleStream();
int requestWebPage(String*, String*, int);
void handleTest();
void brightLed(byte ledBrightness);
void brightLed(byte);
void setupFlashPWM();
void changeResolution(framesize_t);
void handleData();
void readGreyscaleImage();
*/
// ---------------------------------------------------------------
// -SETTINGS
@ -90,8 +89,6 @@
char* stitle = "ESP32Cam-demo"; // title of this sketch
char* sversion = "14oct23"; // Sketch version
int imageFormat = 1; // default image format (1=JPG, 2=greyscale)
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 = 2; // how often to refresh data on root web page (seconds)
@ -272,7 +269,7 @@ void setup() {
// set up camera
if (serialDebug) Serial.print(("\nInitialising camera: "));
if (initialiseCamera()) {
if (initialiseCamera(0)) {
if (serialDebug) Serial.println("OK");
}
else {
@ -406,8 +403,10 @@ void loop() {
// Initialise the camera
// ----------------------------------------------------------------
// returns TRUE if successful
// custom:
// 1 = greyscale image format (defailt is JPG)
bool initialiseCamera() {
bool initialiseCamera(int custom = 0) {
camera_config_t config;
config.ledc_channel = LEDC_CHANNEL_0;
@ -429,13 +428,15 @@ bool initialiseCamera() {
config.pin_pwdn = PWDN_GPIO_NUM;
config.pin_reset = RESET_GPIO_NUM;
config.xclk_freq_hz = 20000000; // XCLK 20MHz or 10MHz for OV2640 double FPS (Experimental)
if (imageFormat == 1) config.pixel_format = PIXFORMAT_JPEG; // colour jpg format
if (imageFormat == 2) config.pixel_format = PIXFORMAT_GRAYSCALE; // greyscale format
config.frame_size = FRAME_SIZE_IMAGE; // Image sizes: 160x120 (QQVGA), 128x160 (QQVGA2), 176x144 (QCIF), 240x176 (HQVGA), 320x240 (QVGA),
// 400x296 (CIF), 640x480 (VGA, default), 800x600 (SVGA), 1024x768 (XGA), 1280x1024 (SXGA),
// 1600x1200 (UXGA)
config.jpeg_quality = 12; // 0-63 lower number means higher quality (can cause failed image capture if set too low at higher resolutions)
config.fb_count = 1; // if more than one, i2s runs in continuous mode. Use only with JPEG
// image format
if (custom == 1) config.pixel_format = PIXFORMAT_GRAYSCALE; // greyscale format
else config.pixel_format = PIXFORMAT_JPEG; // colour jpg format
// image size
config.frame_size = FRAME_SIZE_IMAGE; // Image sizes: 160x120 (QQVGA), 128x160 (QQVGA2), 176x144 (QCIF), 240x176 (HQVGA), 320x240 (QVGA),
// 400x296 (CIF), 640x480 (VGA, default), 800x600 (SVGA), 1024x768 (XGA), 1280x1024 (SXGA),
// 1600x1200 (UXGA)
config.jpeg_quality = 12; // 0-63 lower number means higher quality (can cause failed image capture if set too low at higher resolutions)
config.fb_count = 1; // if more than one, i2s runs in continuous mode. Use only with JPEG
// check the esp32cam board has a psram chip installed (extra memory used for storing captured images)
// Note: if not using "AI thinker esp32 cam" in the Arduino IDE, SPIFFS must be enabled
@ -454,7 +455,7 @@ bool initialiseCamera() {
if (serialDebug) Serial.printf("ERROR: Camera init failed with error 0x%x", camerr);
}
cameraImageSettings(); // apply custom camera settings
cameraImageSettings(); // apply custom camera image settings
return (camerr == ESP_OK); // return boolean result of camera initialisation
}
@ -649,12 +650,12 @@ void resetCamera(bool type = 0) {
delay(300);
digitalWrite(PWDN_GPIO_NUM, LOW);
delay(300);
initialiseCamera();
initialiseCamera(0);
} else {
// reset via software (handy if you wish to change resolution or image type etc. - see test procedure)
esp_camera_deinit();
delay(50);
initialiseCamera();
initialiseCamera(0);
}
}
@ -675,7 +676,7 @@ void changeResolution(framesize_t tRes = FRAMESIZE_96X96) {
}
FRAME_SIZE_IMAGE = tRes;
initialiseCamera();
initialiseCamera(0);
if (serialDebug) Serial.println("Camera resolution changed to " + String(tRes));
ImageResDetails = "Unknown"; // set next time image captured
}
@ -1544,8 +1545,7 @@ void readGreyscaleImage() {
// change camera to greyscale mode (as by default it is in JPG colour mode)
esp_camera_deinit(); // disable camera
delay(50);
imageFormat = 2; // this is used in 'initialiseCamera()' (1=jpg, 2=greyscale)
initialiseCamera(); // restart the camera with new settings
initialiseCamera(1); // restart the camera with greyscale custom setting (1)
// capture the image and use flash if required
int currentBrightness = brightLEDbrightness;
@ -1563,10 +1563,10 @@ void readGreyscaleImage() {
// read image data and calculate average pixel value (as demonstration of reading the image data)
unsigned long dataSize = fb->width * fb->height;
unsigned long avrg = 0;
for (int i=0; i < dataSize; i++) {
for (int i=0; i < dataSize; i++) { // Note: pixels x position = i % fb->width y position = floor(i / fb->width)
avrg += fb->buf[i];
}
client.println("<br>Average pixel = " + String(avrg / dataSize));
client.println("<br>Greyscale Image: Average pixel = " + String(avrg / dataSize));
// close network client connection
delay(3);
@ -1578,8 +1578,7 @@ void readGreyscaleImage() {
// change camera back to JPG mode
esp_camera_deinit();
delay(50);
imageFormat = 1;
initialiseCamera();
initialiseCamera(0); // default settings (0)
}