Rcswitch endless reboot on esp cam with "Guru Meditation Error: Core 1 panic'ed (LoadProhibited)" error

[nathalizator]

I'm succesfully using rcswich with a RF receiver and ESP32-cam but when i just try to merge the receiver demo with an esp cam server code it cause a endless reboot of my esp with an error message. The esp cam server code is working well before merging and it starts rebooting with a error message as soon as i add this part :

  Serial.print("Ready to receive.");
  mySwitch.enableReceive(RXD2);
  delay(1000);

The error message

:10:12.211 -> rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
10:10:12.211 -> configsip: 0, SPIWP:0xee
10:10:12.211 -> clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
10:10:12.211 -> mode:DIO, clock div:2
10:10:12.211 -> load:0x3fff0018,len:4
10:10:12.211 -> load:0x3fff001c,len:1216
10:10:12.211 -> ho 0 tail 12 room 4
10:10:12.245 -> load:0x40078000,len:9720
10:10:12.245 -> ho 0 tail 12 room 4
10:10:12.245 -> load:0x40080400,len:6364
10:10:12.245 -> entry 0x400806b8
10:10:12.940 -> 
10:10:13.941 -> Ready to receive.Guru Meditation Error: Core  1 panic'ed (LoadProhibited). Exception was unhandled.
10:10:15.047 -> Core 1 register dump:
10:10:15.047 -> PC      : 0x401584a3  PS      : 0x00060833  A0      : 0x801362bf  A1      : 0x3ffb1e50  
10:10:15.047 -> A2      : 0x00000000  A3      : 0x3ffb8058  A4      : 0x00000001  A5      : 0x00000001  
10:10:15.047 -> A6      : 0x00060820  A7      : 0x00000000  A8      : 0x80135bf1  A9      : 0x3ffb1e20  
10:10:15.081 -> A10     : 0x02000000  A11     : 0x401357ac  A12     : 0x3ffb1e38  A13     : 0x00000001  
10:10:15.081 -> A14     : 0x00060a20  A15     : 0x00000000  SAR     : 0x00000007  EXCCAUSE: 0x0000001c  
10:10:15.081 -> EXCVADDR: 0x00000000  LBEG    : 0x4000c46c  LEND    : 0x4000c477  LCOUNT  : 0x00000000  
10:10:15.081 -> 
10:10:15.081 -> Backtrace: 0x401584a3:0x3ffb1e50 0x401362bc:0x3ffb1e70 0x40138020:0x3ffb1ea0 0x4013819f:0x3ffb1ed0 0x400d2482:0x3ffb1f00 0x400d585b:0x3ffb1fb0 0x4008bc19:0x3ffb1fd0
10:10:15.115 -> 

Interpretation of the error with Exception Decoder :

PC: 0x401584a3: esp_intr_get_cpu at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/esp32/intr_alloc.c line 780
EXCVADDR: 0x00000000

Decoding stack results
0x401584a3: esp_intr_get_cpu at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/esp32/intr_alloc.c line 780
0x401362bc: gpio_isr_handler_add at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/driver/gpio.c line 389
0x40138020: camera_init at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/components/esp32-camera/driver/camera.c line 1205
0x4013819f: esp_camera_init at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/components/esp32-camera/driver/camera.c line 1268
0x400d2482: setup() at /Users/admin/Downloads/Code_Security_Camera_ESP32CAM_Blynk_02/Code_Security_Camera_ESP32CAM_Blynk_02.ino line 116
0x400d585b: loopTask(void*) at /Users/admin/Library/Arduino15/packages/esp32/hardware/esp32/1.0.4/cores/esp32/main.cpp line 14
0x4008bc19: vPortTaskWrapper at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/port.c line 143

Here is the complete code:

#define CAMERA_MODEL_AI_THINKER // Has PSRAM

#include "camera_pins.h"

#define BTN 13
#define PHOTO 14
#define LED 4

#include <RCSwitch.h>
RCSwitch mySwitch = RCSwitch();
#define RXD2 2

#include "config.h"
const char* ssid = secret_ssid;
const char* password = secret_pwd;
char auth[] = secret_auth;  //sent by Blynk

String local_IP;

void startCameraServer();

void takePhoto()
{
  digitalWrite(LED, HIGH);
  delay(200);
  uint32_t randomNum = random(50000);
  Serial.println("http://" + local_IP + "/capture?_cb=" + (String)randomNum);
  Blynk.setProperty(V1, "urls", "http://" + local_IP + "/capture?_cb=" + (String)randomNum);
  digitalWrite(LED, LOW);
  delay(1000);
}

void setup() {
  Serial.begin(115200);
  pinMode(RXD2, INPUT);
  pinMode(LED, OUTPUT);
  pinMode(BTN, INPUT_PULLUP);
  Serial.setDebugOutput(true);
  Serial.println();
  delay(1000);

Serial.print("Ready to receive.");
  mySwitch.enableReceive(RXD2);
  delay(1000);

  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;

  // if PSRAM IC present, init with UXGA resolution and higher JPEG quality
  //                      for larger pre-allocated frame buffer.
  if (psramFound()) {
    config.frame_size = FRAMESIZE_UXGA;
    config.jpeg_quality = 10;
    config.fb_count = 2;
  } else {
    config.frame_size = FRAMESIZE_SVGA;
    config.jpeg_quality = 12;
    config.fb_count = 1;
  }

  // camera init
  esp_err_t err = esp_camera_init(&config);
  if (err != ESP_OK) {
    Serial.printf("Camera init failed with error 0x%x", err);
    return;
  }

  sensor_t * s = esp_camera_sensor_get();
  // initial sensors are flipped vertically and colors are a bit saturated
  if (s->id.PID == OV3660_PID) {
    s->set_vflip(s, 1); // flip it back
    s->set_brightness(s, 1); // up the brightness just a bit
    s->set_saturation(s, -2); // lower the saturation
  }
  // drop down frame size for higher initial frame rate
  s->set_framesize(s, FRAMESIZE_QVGA);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");

  startCameraServer();

  Serial.print("Camera Ready! Use 'http://");
  Serial.print(WiFi.localIP());
  local_IP = WiFi.localIP().toString();
  Serial.println("' to connect");
  Blynk.begin(auth, ssid, password);


}

void loop() {
  Serial.println(BTN);
  // put your main code here, to run repeatedly:
  Blynk.run();

  if (digitalRead(BTN) == LOW) {
    Serial.println("Send Notification");
    Blynk.notify("Il y a une personne à la porte!");
    Serial.println("Capture Photo");
    Serial.println(BTN);
    takePhoto();
    delay(3000);
  } else if (digitalRead(BTN) == HIGH) { };

  /*
    if (mySwitch.available()) {

    Serial.print(mySwitch.getReceivedValue());
    unsigned long int num = mySwitch.getReceivedValue();
    Serial.println(num);

    mySwitch.resetAvailable();
    }
  */

}

[daverathbone]

Had this kind of issue with ESP's turns out it was the boot loader being triggered with serial port, did not happen when port was changed to none boot loader ports.