ultimate_esp_mqtt_ubidots

Hardware

1. ESP8266 based boards: Node MCU, ESP 07, ESP 12F

Description

Library Capable of:

1. WiFi Manager: Auto choose WiFi AP dynamically
2. HTTP OTA: Web server based OTA (External NodeJS Server -> https://github.com/rohirto/OTA_Server)
3. Ubidots MQTT
4. Wifi Reconnect timer and User Timers: A wifi reconnect timer of 3 mins (If wifi connection goes, either AP is turned off or Internet gone, the esp tries to reconnect with Ubidots server for 3 mins, after that if WiFi Status is of disconnected then esp goes back to WiFi manager mode to reconfigure a new AP -> which if not done in 3 mins will result in attempt for connection with existing AP -> the cycle goes on)

Usage

1. WiFi Manager Module:

esp_updater OTA_update;
void setup(){
OTA_update.start_wifi_manager();
}

2. HTTP Updater:

In user define header

#define FIRMWARE_VERSION  "v10"
#define OTA_URL           "URL according http update library of esp8266"

In sketch

esp_updater OTA_update;
void setup(){
OTA_update.start_wifi_manager();
OTA_update.start_http_update(OTA_URL,FIRMWARE_VERSION);
}

3. Ubidots MQTT: In MQTT subscribe func, last argument should always be NULL, there should always be stub function mqtt_user_code(char* payload)

#define MQTT_CLIENT_NAME    "NodeMCUv2"
#define TOKEN               "Ubidots Token"
#define MQTT_TOPIC          "MQTT Topic to subscribe"
#define DEVICE_LABEL        "given by ubidots, used for publishing"
#define VARIABLE_LABEL      "given by ubidots, used for publishing"

esp_mqtt esp_ubidots(MQTT_CLIENT_NAME, TOKEN, DEBUG_FALSE);  
void setup(){
//Start MQTT connection
esp_ubidots.init();
esp_ubidots.mqtt_subscribe(MQTT_TOPIC1, MQTT_TOPIC2, NULL);  //Can dynamically enter the arguments, must be terminated with NULL
}
void loop(){
esp_ubidots.mqtt_loop();
esp_ubidots.mqtt_subscribe(MQTT_TOPIC1, MQTT_TOPIC2, NULL);  //need to keep resubscribing in case of disconnection
}

void mqtt_user_code(char* m_topic, char* payload, int len){
//Stub Function must be there
//The IO changes which needs to change on message reception from MQTT server
}

4. User defined Timers:

esp_timer mq135_timer(5,'m',"mq135"); //5 min mq135 named timer, other options are 's' (seconds) and 'h' (hour)

void setup(){
 mq135_timer.start();
 }
 
 void loop(){
 mq135_timer.timer_loop();
 if( mq135_timer.timer_elapsed == true){
  mq135_timer.timer_elapsed = false;
  }
 }