Jaume Miralles
Published © GPL3+

Publish Your Arduino Data to the Cloud

Publish your Arduino input in real-time so it can be accessible on the internet without taking care of server side.

IntermediateProtip2 hours5,241
Publish Your Arduino Data to the Cloud

Things used in this project

Hardware components

Arduino Nano R3
Arduino Nano R3
×1
DHT11 Temperature & Humidity Sensor (4 pins)
DHT11 Temperature & Humidity Sensor (4 pins)
×1
ESP8266 ESP-01
Everything ESP ESP8266 ESP-01
×1
Resistor 10k ohm
Resistor 10k ohm
×1
Resistor 1k ohm
Resistor 1k ohm
×1
Resistor 2.21k ohm
Resistor 2.21k ohm
×1

Software apps and online services

Circus Of Things (online service)
Arduino IDE
Arduino IDE

Story

Read more

Schematics

Nano - ESP8266 - DHT11

Shows all the connections among devices
Cir nano dht11 esp8266 uzqsltpywv

DHT11 pins

These are the pins for the DHT11 temperature sensor we will connect to the Arduino Nano
Cir dht11 mbd7rtorje

Nano - DHT11

Shows how the DHT11 temperature sensor should be connected to the Arduino Nano, according to the code supplied
Cir nano dht11 fnvra6sonn

Nano - ESP8266

Shows how the ESP8266 Wifi Module should be connected to the Arduino Nano, according to the code supplied
Cir nano esp8266 t53yfmrwil

Code

WriteOneSignal.ino

Arduino
This example code that shows how to feed a signal using the circusofthings.com API through its CircusWifiLib-2.0.0 library for Arduino.

With this code you can feed a signal taking the values read from a temperature sensor.

In this case, we assume we have a DHT11 sensor that is controlled by a propietary protocol implemented in its specific library.

A software serial port is used, so the onboard serial port is used to monitor the process. You have 3 degrees for monitor: DEBUG_NO,DEBUG_YES and DEBUG_DEEP.

There are no 3rd part libraries to use, beside SoftwareSerial and DHT Sensor Library Built in by Adafruit Version 1.3.0
/*
  WriteOneSignal.ino

  This example code that shows how to feed a signal using the circusofthings.com API through its CircusWifiLib-2.0.0 library for Arduino.

  With this code you can feed a signal taking the values read from a temperature sensor. 
  
  In this case, we assume we have a DHT11 sensor that is controlled by a propietary protocol implemented in its specific library.

  A software serial port is used, so the onboard serial port is used to monitor the process. You have 3 degrees for monitor: DEBUG_NO,DEBUG_YES and DEBUG_DEEP.

  There are no 3rd part libraries to use, beside SoftwareSerial and DHT Sensor Library Built in by Adafruit Version 1.3.0 
  
  Created by Jaume Miralles Isern, October 26, 2018.
*/ 


#include <CircusWifiLib.h>

// ------------------------------------------------
// These are the CircusWifiLib related declarations
// ------------------------------------------------

int TXPinForWifiModule = 2;               // IO port in your arduino you will use as TX for serial communication with the wifi module
int RXPinForWifiModule = 3;               // IO port in your arduino you will use as RX for serial communication with the wifi module
char ssid[] = "your_ssid_here";             // your wifi network SSID
char pass[] = "your_wifi_password_here";             // your wifi network password
int wifiSerialBaudRate = 9600;            // Baud rate between your arduino and your wifi module. Did you check that your module actually uses this baud rate?
int debugSerialBaudRate = 9600;           // Baud rate between your arduino and your computer
char token[] = "your_token_here";    // Your API token for Circus
char analogSignalTemperatureKey[] = "944668525";    // The key of the signal you have created at circusofthings.com

SoftwareSerial ss(RXPinForWifiModule,TXPinForWifiModule);
CircusWifiLib circus(Serial,&ss,ssid,pass,DEBUG_YES,KEEP_ALIVE);

// ------------------------------------------------
// These are the Example related declarations
// ------------------------------------------------

#define DHTPIN 5      // digital for serial propietary portocol of sensor DHT11
#define DHTTYPE DHT11 // exact model of temperature sensor DHT 11 for the general library

DHT dht(DHTPIN, DHTTYPE);



void setup() {
  Serial.begin(debugSerialBaudRate);
  ss.begin(wifiSerialBaudRate);
  dht.begin();
  circus.begin();  
}

void loop() {
  float t = dht.readTemperature();
  if (isnan(t)) {
    t=-1; // if so, check the connection of your DHT11 sensor
  }

  delay(3000);
  circus.write(analogSignalTemperatureKey,t,token); 
  
}

Credits

Jaume Miralles

Jaume Miralles

2 projects • 27 followers

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