Hello all,
I trust your kind response would be of great help to me.
I am having issues with doing image capture on real time with my esp32 cam module using a press button.
I want it that, if a button is pressed anytime, esp32 cam should capture an image. I created a function to respond to this press button.
Meanwhile, I modified the code from Randomnerd to achieve this purpose.
Find below my sketch..
The problems I am encountering are:
- The system response to the press button only twice after which it's automatically goes to sleep even when I didn't ask it. To capture further image, I must restart the system. This isn't what I wanted.
2)It always fails to mount the SD card attached. I am using a 16G card of class A
/*********
Rui Santos
Complete project details at https://RandomNerdTutorials.com/esp32-cam-take-photo-save-microsd-card
IMPORTANT!!!
- Select Board "ESP32 Wrover Module"
- Select the Partion Scheme "Huge APP (3MB No OTA)
- GPIO 0 must be connected to GND to upload a sketch
- After connecting GPIO 0 to GND, press the ESP32-CAM on-board RESET button to put your board in flashing mode
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files.
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
*********/
#include "esp_camera.h"
#include "esp_timer.h"
#include "img_converters.h"
#include "Arduino.h"
#include "fb_gfx.h"
#include "fd_forward.h"
#include "fr_forward.h"
#include "FS.h" // SD Card ESP32
#include "SD_MMC.h" // SD Card ESP32
#include "soc/soc.h" // Disable brownour problems
#include "soc/rtc_cntl_reg.h" // Disable brownour problems
#include "dl_lib.h"
#include "driver/rtc_io.h"
#include <EEPROM.h> // read and write from flash memory
// define the number of bytes you want to access
#define EEPROM_SIZE 1
#define pressButton 2 //Button to contyrol camera capture
// Pin definition for CAMERA_MODEL_AI_THINKER
#define PWDN_GPIO_NUM 32
#define RESET_GPIO_NUM -1
#define XCLK_GPIO_NUM 0
#define SIOD_GPIO_NUM 26
#define SIOC_GPIO_NUM 27
#define Y9_GPIO_NUM 35
#define Y8_GPIO_NUM 34
#define Y7_GPIO_NUM 39
#define Y6_GPIO_NUM 36
#define Y5_GPIO_NUM 21
#define Y4_GPIO_NUM 19
#define Y3_GPIO_NUM 18
#define Y2_GPIO_NUM 5
#define VSYNC_GPIO_NUM 25
#define HREF_GPIO_NUM 23
#define PCLK_GPIO_NUM 22
int pictureNumber = 0;
String path;
void setup() {
WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0); //disable brownout detector
pinMode(4, OUTPUT);
pinMode(pressButton, INPUT);
Serial.begin(115200);
//Serial.setDebugOutput(true);
//Serial.println();
// initialize EEPROM with predefined size
EEPROM.begin(EEPROM_SIZE);
delay(2000);
Serial.println("I am in Config seeting");
camera_config_t config;
config.ledc_channel = LEDC_CHANNEL_0;
config.ledc_timer = LEDC_TIMER_0;
config.pin_d0 = Y2_GPIO_NUM;
config.pin_d1 = Y3_GPIO_NUM;
config.pin_d2 = Y4_GPIO_NUM;
config.pin_d3 = Y5_GPIO_NUM;
config.pin_d4 = Y6_GPIO_NUM;
config.pin_d5 = Y7_GPIO_NUM;
config.pin_d6 = Y8_GPIO_NUM;
config.pin_d7 = Y9_GPIO_NUM;
config.pin_xclk = XCLK_GPIO_NUM;
config.pin_pclk = PCLK_GPIO_NUM;
config.pin_vsync = VSYNC_GPIO_NUM;
config.pin_href = HREF_GPIO_NUM;
config.pin_sscb_sda = SIOD_GPIO_NUM;
config.pin_sscb_scl = SIOC_GPIO_NUM;
config.pin_pwdn = PWDN_GPIO_NUM;
config.pin_reset = RESET_GPIO_NUM;
config.xclk_freq_hz = 20000000;
config.pixel_format = PIXFORMAT_JPEG;
Serial.println("I am out of Config seeting");
if(psramFound()){
config.frame_size = FRAMESIZE_UXGA; // FRAMESIZE_ + QVGA|CIF|VGA|SVGA|XGA|SXGA|UXGA
config.jpeg_quality = 10;
config.fb_count = 2;
} else {
config.frame_size = FRAMESIZE_SVGA;
config.jpeg_quality = 12;
config.fb_count = 1;
}
Serial.println("I am out of psram seeting");
// Init Camera
esp_err_t err = esp_camera_init(&config);
if (err != ESP_OK) {
Serial.printf("Camera init failed with error 0x%x", err);
return;
}
//Serial.println("Starting SD Card");
if(!SD_MMC.begin()){
Serial.println("SD Card Mount Failed");
//return;
}
uint8_t cardType = SD_MMC.cardType();
if(cardType == CARD_NONE){
Serial.println("No SD Card attached");
// return;
}
//camera_fb_t * fb = NULL;
// initialize EEPROM with predefined size
EEPROM.begin(EEPROM_SIZE);
//pictureNumber = EEPROM.read(0);
// Path where new picture will be saved in SD Card
path = "/picture" + String(pictureNumber) +".jpg";
}
void loop() {
while(digitalRead(pressButton)==HIGH){
delay(100);
if(digitalRead(pressButton)==HIGH){
snapShot();
}
}
}
void snapShot(){
camera_fb_t * fb = NULL;
fb = esp_camera_fb_get(); // Take Picture with Camera
if(!fb) {
Serial.println("Camera capture failed");
return;
}else{
Serial.println("Camera capture successful");
//pictureNumber = EEPROM.read(0);
pictureNumber++;
}
// Path where new picture will be saved in SD Card
path = "/picture" + String(pictureNumber) +".jpg";
fs::FS &fs = SD_MMC;
Serial.printf("Picture file name: %s\n", path.c_str());
File file = fs.open(path.c_str(), FILE_WRITE);
if(!file){
Serial.println("Failed to open file in writing mode");
}
else {
file.write(fb->buf, fb->len); // payload (image), payload length
Serial.printf("Saved file to path: %s\n", path.c_str());
EEPROM.write(0, pictureNumber);
EEPROM.commit();
}
file.close();
// Turns off the ESP32-CAM white on-board LED (flash) connected to GPIO 4
pinMode(4, OUTPUT);
rtc_gpio_hold_en(GPIO_NUM_4);
delay(2000);
Serial.println("I'm out of the snapshot method");
}
Any help please?