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@jenschr
Last active Nov 9, 2021
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#include "esp_http_client.h"
#include "esp_camera.h"
#include <WiFi.h>
#include "Arduino.h"
#include "Base64.h"
#include "mbedtls/base64.h"
#include <NTPClient.h>
#include <WiFiUdp.h>
// Change the WIFI name and password
// Change the awswebaddress below
const char* ssid = "Student";
const char* password = "Kristiania";
int capture_interval = 60000; // Microseconds between captures
bool internet_connected = false;
long current_millis;
long last_capture_millis = -20000;
/*
* v1.62 fra TTGO er riktig kamera
* https://github.com/Xinyuan-LilyGO/LilyGo-Camera-Series
*/
// T_Camera_V162_VERSION
#define PWDN_GPIO_NUM -1
#define RESET_GPIO_NUM -1
#define XCLK_GPIO_NUM 4
#define SIOD_GPIO_NUM 18
#define SIOC_GPIO_NUM 23
#define Y9_GPIO_NUM 36
#define Y8_GPIO_NUM 37
#define Y7_GPIO_NUM 38
#define Y6_GPIO_NUM 39
#define Y5_GPIO_NUM 35
#define Y4_GPIO_NUM 14
#define Y3_GPIO_NUM 13
#define Y2_GPIO_NUM 34
#define VSYNC_GPIO_NUM 5
#define HREF_GPIO_NUM 27
#define PCLK_GPIO_NUM 25
#define I2C_SDA 21
#define I2C_SCL 22
#define BUTTON_1 15
#define SSD130_MODLE_TYPE 0 // 0 : GEOMETRY_128_64 // 1: GEOMETRY_128_32
#define AS312_PIN 19 //not rtc io ,can't form deepsleep wakeup
#define IIS_SCK 26
#define IIS_WS 32
#define IIS_DOUT 33
#define ENABLE_IP5306
void setup()
{
Serial.begin(115200);
if (init_wifi()) { // Connected to WiFi
internet_connected = true;
Serial.println("\nInternet connected");
}
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;
}
// 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;
}
Serial.printf("Camera init ok");
}
bool init_wifi()
{
int connAttempts = 0;
Serial.println("\r\nConnecting to: " + String(ssid));
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED ) {
delay(500);
Serial.print(".");
if (connAttempts > 10) return false;
connAttempts++;
}
return true;
}
esp_err_t _http_event_handler(esp_http_client_event_t *evt)
{
switch (evt->event_id) {
case HTTP_EVENT_ERROR:
Serial.println("HTTP_EVENT_ERROR");
break;
case HTTP_EVENT_ON_CONNECTED:
Serial.println("HTTP_EVENT_ON_CONNECTED");
break;
case HTTP_EVENT_HEADER_SENT:
Serial.println("HTTP_EVENT_HEADER_SENT");
break;
case HTTP_EVENT_ON_HEADER:
Serial.println();
Serial.printf("HTTP_EVENT_ON_HEADER, key=%s, value=%s", evt->header_key, evt->header_value);
break;
case HTTP_EVENT_ON_DATA:
Serial.println();
Serial.printf("HTTP_EVENT_ON_DATA, len=%d", evt->data_len);
if (!esp_http_client_is_chunked_response(evt->client)) {
// Write out data
// printf("%.*s", evt->data_len, (char*)evt->data);
}
break;
case HTTP_EVENT_ON_FINISH:
Serial.println("");
Serial.println("HTTP_EVENT_ON_FINISH");
break;
case HTTP_EVENT_DISCONNECTED:
Serial.println("HTTP_EVENT_DISCONNECTED");
break;
}
return ESP_OK;
}
static esp_err_t take_send_photo()
{
Serial.println("\nTaking picture...");
camera_fb_t * fb = NULL;
esp_err_t res = ESP_OK;
fb = esp_camera_fb_get();
if (!fb) {
Serial.println("Camera capture failed");
return ESP_FAIL;
}
int image_buf_size = 4000 * 1000;
uint8_t *image = (uint8_t *)ps_calloc(image_buf_size, sizeof(char));
size_t length = fb->len;
size_t olen;
Serial.print("length is ");
Serial.print(length);
Serial.println(" bytes.");
int err1 = mbedtls_base64_encode(image, image_buf_size, &olen, fb->buf, length);
// const char* imageChar = (char*) image;
//
// int str_len = imageChar.length() + 1;
// char image_char[str_len];
// image.toCharArray(image_char, str_len);
esp_http_client_handle_t http_client;
esp_http_client_config_t config_client = {0};
WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP);
timeClient.begin();
timeClient.update();
String Time = String(timeClient.getEpochTime());
String MAC = String(WiFi.macAddress());
Serial.print("Time:" ); Serial.print(Time);
Serial.print("MAC: "); Serial.print(MAC);
String post_url2 = "https://xxxxxx.execute-api.eu-north-1.amazonaws.com/test/" + MAC + "/" + Time; // Location where images are POSTED
char post_url3[post_url2.length() + 1];
post_url2.toCharArray(post_url3, sizeof(post_url3));
config_client.url = post_url3;
config_client.event_handler = _http_event_handler;
config_client.method = HTTP_METHOD_POST;
http_client = esp_http_client_init(&config_client);
esp_http_client_set_post_field(http_client, (const char *)fb->buf, fb->len);
esp_http_client_set_header(http_client, "Content-Type", "image/jpg");
esp_err_t err = esp_http_client_perform(http_client);
if (err == ESP_OK) {
Serial.print("esp_http_client_get_status_code: ");
Serial.println(esp_http_client_get_status_code(http_client));
}
esp_http_client_cleanup(http_client);
esp_camera_fb_return(fb);
return err;
}
void loop()
{
// TODO check Wifi and reconnect if needed
current_millis = millis();
if(current_millis%1000==0){
//Serial.println(current_millis/1000);
}
if (current_millis - last_capture_millis > capture_interval) { // Take another picture
last_capture_millis = millis();
take_send_photo();
}
}
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