Hi,
The error "Error compiling for board Arduino Uno." came when I compile the code， need help please:
#include "esp_camera.h"
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
// Select camera model
// #define CAMERA_MODEL_WROVER_KIT
//#define CAMERA_MODEL_ESP_EYE
//#define CAMERA_MODEL_M5STACK_PSRAM
//#define CAMERA_MODEL_M5STACK_WIDE
#define CAMERA_MODEL_AI_THINKER
#include "camera_pins.h"
byte x,y;
uint8_t oldpixel, newpixel;
int quanterror,i;
#define OLED_MOSI 13
#define OLED_CLK 15
#define OLED_DC 14
#define OLED_RESET 2
#define OLED_CS 12
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64
Adafruit_SSD1306 display(SCREEN_WIDTH,SCREEN_HEIGHT, OLED_MOSI, OLED_CLK, OLED_DC, OLED_RESET, OLED_CS);
// the setup function runs once when you press reset or power the board
void setup() {
Serial.begin(115200);
// display.begin(SSD1306_SWITCHCAPVCC);
display.begin(SSD1306_SWITCHCAPVCC);
display.clearDisplay();
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_GRAYSCALE; //PIXFORMAT_JPEG;
config.frame_size = FRAMESIZE_QQVGA2; // 128x160
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 blightness just a bit
}
}
void loop() {
// capture camera frame
camera_fb_t *fb = esp_camera_fb_get();
i=0;
for (y=0;y<SCREEN_HEIGHT;y++)
{
for(x=0;x<SCREEN_WIDTH;x++)
{
oldpixel= fb->buf[i]; // keep original greyscale value
newpixel = (255 * (oldpixel >> 7)); // threshold of 128
fb->buf[i] = newpixel; // cam buffer now mono, either 0 or 255
// floyd-steignburg dithering:
quanterror = oldpixel - newpixel; // error difference between pixels
// distribute this error to neighbouring pixels:
//right
if (x < SCREEN_WIDTH-1) // bounds checking...
{
fb->buf[(x+1) +(y*SCREEN_WIDTH)] += ((quanterror * 7)>>4);
}
//leftdown
if ((x > 1) && (y < SCREEN_HEIGHT-1)) // bounds checking...
{
fb->buf[(x-1) +((y+1)*SCREEN_WIDTH)] += ((quanterror * 3)>>4);
}
//down
if (y < 63) // bounds checking...
{
fb->buf[(x) + ((y + 1) * SCREEN_WIDTH)] += ((quanterror * 5) >> 4);
}
//rightdown
if ((x < SCREEN_WIDTH-1) && (y < SCREEN_HEIGHT-1)) // bounds checking...
{
fb->buf[(x + 1) + ((y + 1) * SCREEN_WIDTH)] += (quanterror >> 4);
}
// draw this pixel
display.drawPixel( x,y, fb->buf[i]%2);
i++;
}
}
display.display();
}
Arduino: 1.8.13 (Windows 7), Board: "Arduino Uno"
In file included from E:\ENGINEERING\DIY\ESP32 CAM\ESP32 CAM OLED\ESP32-CAM_OLED-A\ESP32-CAM_OLED-A.ino:6:0:
C:\Program Files (x86)\Arduino\libraries\esp32-camera-master/esp_camera.h:68:10: fatal error: esp_err.h: No such file or directory
#include "esp_err.h"
^~~~~~~~~~~
compilation terminated.
exit status 1
Error compiling for board Arduino Uno.
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.