Connection Refused

[Agil1307]

include "Base64.h"

include

include "soc/soc.h"

include "soc/rtc_cntl_reg.h"

include "esp_camera.h"

include "FirebaseESP32.h"

include

include

const char ssid = "U"; const char password = "12345678";

String FIREBASE_HOST = "kotakpaket-20c6a-default-rtdb.firebaseio.com"; String FIREBASE_AUTH = "9fV8VRgHkPGNROHCmIeUzK5doqcBRsboanoVUI2F"; FirebaseData firebaseData; void setup() { WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0); Serial.begin(115200); Serial.setDebugOutput(true); Serial.println(); Serial.println("SSID: " + (String)ssid); Serial.println("Password: " + (String)password);

WiFi.begin(ssid, password); long int StartTime = millis(); while (WiFi.status() != WL_CONNECTED) { delay(500); if ((StartTime + 10000) < millis()) break; }

if (WiFi.status() == WL_CONNECTED) { Serial.println(""); Serial.print("Camera Ready! Use 'http://"); Serial.print(WiFi.localIP()); Serial.println("' to connect"); } else { Serial.println("Connection failed"); return; }

camera_config_t config; config.ledc_channel = LEDC_CHANNEL_0; config.ledc_timer = LEDC_TIMER_0; config.pin_d0 = 5; // Y2_GPIO_NUM config.pin_d1 = 18; // Y3_GPIO_NUM config.pin_d2 = 19; // Y4_GPIO_NUM config.pin_d3 = 21; // Y5_GPIO_NUM config.pin_d4 = 36; // Y6_GPIO_NUM config.pin_d5 = 39; // Y7_GPIO_NUM config.pin_d6 = 34; // Y8_GPIO_NUM config.pin_d7 = 35; // Y9_GPIO_NUM config.pin_xclk = 0; // XCLK_GPIO_NUM config.pin_pclk = 22; // PCLK_GPIO_NUM config.pin_vsync = 25; // VSYNC_GPIO_NUM config.pin_href = 23; // HREF_GPIO_NUM config.pin_sscb_sda = 26; // SIOD_GPIO_NUM config.pin_sscb_scl = 27; // SIOC_GPIO_NUM config.pin_pwdn = 32; // PWDN_GPIO_NUM config.pin_reset = -1; // 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; // 0-63 lower number means higher quality config.fb_count = 2; } else { config.frame_size = FRAMESIZE_SVGA; config.jpeg_quality = 12; // 0-63 lower number means higher quality 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); delay(1000); ESP.restart(); } // drop down frame size for higher initial frame rate sensor_t *s = esp_camera_sensor_get(); s->set_framesize(s, FRAMESIZE_QQVGA); // VGA|CIF|QVGA|HQVGA|QQVGA ( UXGA? SXGA? XGA? SVGA? ) Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH); Firebase.reconnectWiFi(true); Firebase.setMaxRetry(firebaseData, 3); Firebase.setMaxErrorQueue(firebaseData, 30); Firebase.enableClassicRequest(firebaseData, true);

FirebaseJson json;

//String jsonData = "{\"photo\":\"" + Photo2Base64() + "\"}"; json.setJsonData("{\"photo\":\"" + Photo2Base64() + "\"}"); String photoPath = "/esp32-cam"; if (Firebase.pushJSON(firebaseData, photoPath, json)) { Serial.println(firebaseData.dataPath()); Serial.println(firebaseData.pushName()); Serial.println(firebaseData.dataPath() + "/" + firebaseData.pushName()); } else { Serial.println(firebaseData.errorReason()); } }

void loop() { delay(10000); }

String Photo2Base64() { camera_fb_t *fb = NULL; fb = esp_camera_fb_get(); if (!fb) { Serial.println("Gagal mengambil gambar dari kamera"); return ""; }

String imageFile = "data:image/jpeg;base64,"; String encoded = base64::encode(fb->buf, fb->len); imageFile += encoded;

esp_camera_fb_return(fb); return imageFile; }

String urlencode(String str) { String encodedString = ""; char c; char code0; char code1; char code2; for (int i = 0; i < str.length(); i++) { c = str.charAt(i); if (c == ' ') { encodedString += '+'; } else if (isalnum(c)) { encodedString += c; } else { code1 = (c & 0xf) + '0'; if ((c & 0xf) > 9) { code1 = (c & 0xf) - 10 + 'A'; } c = (c >> 4) & 0xf; code0 = c + '0'; if (c > 9) { code0 = c - 10 + 'A'; } code2 = '\0'; encodedString += '%'; encodedString += code0; encodedString += code1; encodedString += code2; } yield(); } return encodedString; } why connection refused?

[mobizt]

There is memory issue (out of memory)

Don't store large base64 string in memory, you should save it to file and send it with file function instead.

[Agil1307]

can you give me the coding solutions?

[mobizt]

https://github.com/mobizt/Firebase-ESP32/tree/master/examples/File

[Agil1307]

what should I do with it?

[mobizt]

Don't store large base64 string in memory, you should save it to file and send it with file function instead.

[avinashboy]

Hi @mobizt , i have doubt

How to start the Firebase client ESP library in ESP32? I mean, there is no network for 2 hours, but it has the Wi-Fi signal. After some time, the library can't detect whether the network is available or not after losing the refreshed token.

[mobizt]

@avinashboy

It is quite off topic. You have to debug your code and WiFi.

There are the token status callback and the error reason from FirebaseData that provided information of error.

It is not possible to connect to server if your AP can't access the internet.