Esp 32 cam with uno

Other Hardware 3rd Party Boards
1

i am programming esp32 cam with uno, after uploading the code, ii am supposed to press reset button on the cam module and it will print the IP on the serial monitor but instead it prints;

rst:0x1 (POWERON_RESET),boot:0x3 (DOWNLOAD_BOOT(UART0/UART1/SDIO_REI_REO_V2))
waiting for download

code i am using

#include "esp_camera.h"
#include <WiFi.h> ;
#include "soc/soc.h"
#include "soc/rtc_cntl_reg.h"
//
// WARNING!!! Make sure that you have either selected ESP32 Wrover Module,
// or another board which has PSRAM enabled
//
 
#define CAMERA_MODEL_AI_THINKER
#include "camera_pins.h"
 
const char* ssid = "Abullah Home's";
const char* password = "Ipuda642";
 
void startCameraServer();
 
void setup()
{
WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0
);
Serial.begin(115200);
Serial.setDebugOutput(true);
Serial.println();
 
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;
//init with high specs to pre-allocate larger buffers
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;
}
 
#if defined(CAMERA_MODEL_ESP_EYE)
pinMode(13, INPUT_PULLUP);
pinMode(14, INPUT_PULLUP);
#endif
 
// 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 blightness 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);
 
#if defined(CAMERA_MODEL_M5STACK_WIDE)
s->set_vflip(s, 1);
s->set_hmirror(s, 1);
#endif
 
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());
Serial.println("' to connect");
}
void loop()
{
// put your main code here, to run repeatedly:
delay(10000);
}
2

Sounds like the ESP32 is stuck in firmware download mode. Please share a schematic of your circuit as well as a clear photograph of how everything is connected.

Have you actually programmed this to the ESP32 successfully?

However, to start with the obvious:

What are you trying to do exactly with the UNO? An ESP32Cam is a microcontroller plus camera module that can work standalone. What's the UNO supposed to add to the mix?

3

Are you using the required bidirectional logic level shifter, when connecting a 5V MCU to a 3.3V MCU?

4

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