Mesh Weather Data Network

Using multiple Particle-based devices, you can collect and compare weather data from across the city or even across the world.

BeginnerProtip2 hours593

Things used in this project

Hardware components

Particle Argon

DHT11 Temperature & Humidity Sensor (4 pins)

Breadboard (generic)

Multi-Turn Precision Potentiometer- 10k ohms (25 Turn)

Jumper wires (generic)

Software apps and online services

Particle Build Web IDE

Hand tools and fabrication machines

3D Printer (generic)

Soldering iron (generic)

Hot glue gun (generic)

Story

We wanted to build a mesh device that allowed one to take data from any location and compare that data quickly and easily.

Schematics

Red - VCC connects 3V3

Yellow - Data Pin to D2

Black - Ground

Here is a link to our youtube video about our project and how it works.

https://www.youtube.com/watch?v=S5I_8SrXTpQ

Link to our ThingSpeak page

https://thingspeak.com/channels/897398

Schematics

Code

// This #include statement was automatically added by the Particle IDE.
#include <ThingSpeak.h>

// This #include statement was automatically added by the Particle IDE.
#include <Adafruit_DHT.h>

// This example assumes the sensor to be plugged into CONN2
#define DHTPIN D2 // what pin we're connected to

// Here we define the type of sensor used
#define DHTTYPE DHT11 // DHT 11

DHT dht(DHTPIN, DHTTYPE);

int f=0;
bool humid = false;

TCPClient client;

unsigned long myChannelNumber =897398;
const char * myWriteAPIKey = "ZSGLMB2IDWW4LGD4";

void setup() {

ThingSpeak.begin(client);

pinMode(D7, OUTPUT);
Serial.begin(9600);
dht.begin();
Particle.subscribe("pleaseWork_2", l, ALL_DEVICES);

}

void loop() {
// Wait a few seconds between measurements.
delay(2000);

delay(2000); //2 second delay

float t = dht.getTempCelcius(); //Takes temp data in celcius
float h = dht.getHumidity();
;

if (isnan(h) || isnan(t) ) {
Serial.println("Failed to read from DHT sensor!");
return;
}

Particle.publish("pleaseWork_t", String (t), PUBLIC);
Particle.publish("pleaseWork_h", String (h), PUBLIC);

ThingSpeak.setField(1,t);
ThingSpeak.setField(2,h);

Serial.print(dht.getHumidity());
Serial.println("h");
Serial.print(dht.getTempFarenheit());
Serial.println("t");


ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);

delay(15000); // ThingSpeak will only accept updates every 15 seconds.

}
void l(const char *event, const char *data) {

digitalWrite(D7, HIGH);
delay(2000);
digitalWrite(D7, LOW);
delay(1000);

}

// This #include statement was automatically added by the Particle IDE.
#include <LiquidCrystal.h>

// This #include statement was automatically added by the Particle IDE.
#include <Adafruit_DHT.h>


// This example assumes the sensor to be plugged into CONN2
#define DHTPIN D2 // what pin we're connected to

// Here we define the type of sensor used
#define DHTTYPE DHT11 // DHT 11

 

//Define RGB LED1 PINS note green collor is note used so not required


//API_KEY (WRITE)
const String key = "ZSGLMB2IDWW4LGD4";

//DHT dht(DHTPIN, DHTTYPE);
DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal lcd(2, 3, 4, 5, 6, 7);


void setup() {

lcd.clear();
lcd.begin(16, 2);
lcd.setCursor(0,0);
lcd.print("Sensor 1 T&H");
lcd.setCursor(0,1);
lcd.print("Sensor 2 T&H");
Particle.subscribe("pleaseWork_h", h, ALL_DEVICES);
delay(1000);
Particle.subscribe("pleaseWork_f", f, ALL_DEVICES);
delay(1000);
Particle.subscribe("pleaseWork_j", j, ALL_DEVICES);
delay(1000);
Particle.subscribe("pleaseWork_g", g, ALL_DEVICES);
delay(1000);
// We open up a serial port to monitor the sensor values
//Serial.begin(9600);
//Serial.println("DHT11 test!");

//dht.begin();

}
void loop() {
// Wait a few seconds between measurements.
delay(5000);

Particle.publish("pleaseWork_all", PUBLIC);

}
void f(const char *event, const char *data) {

// Print the data over serial
lcd.setCursor(2,0);
lcd.print(data);
lcd.setCursor(0,0);
lcd.print("A=");
}

void h(const char *event, const char *data) {

lcd.setCursor(10,0);
lcd.print(data);
lcd.setCursor(6,0);
lcd.print("C ");
lcd.setCursor(14,0);
lcd.print("% ");
}
void g(const char *event, const char *data) {

// Print the data over serial
lcd.setCursor(2,1);
lcd.print(data);
lcd.setCursor(0,1);
lcd.print("B=");
}

void j(const char *event, const char *data) {

lcd.setCursor(10,1);
lcd.print(data);
lcd.setCursor(6,1);
lcd.print("C ");
lcd.setCursor(14,1);
lcd.print("% ");


}

Credits

Jacob Herbert

1 project • 0 followers

Derrick King

1 project • 1 follower

Justin Domingo

1 project • 0 followers

Mesh Weather Data Network