Week 3 Slides

El Nino Winter Forecast

More at the WUSA9 blog.

Ultrasonic Sensor code

Ultrasonic Motion Sensor code -
https://goo.gl/PCL9Qo

/*Ultrasonic sensor Pins:

       VCC: +5VDC

       Trig : Trigger (INPUT) - Pin11

       Echo: Echo (OUTPUT) - Pin 13

       GND: GND

*/

WE'LL TRY THIS FIRST

#define trigPin 13 #define echoPin 12 #define led 7 void setup() { Serial.begin (9600); pinMode(trigPin, OUTPUT); pinMode(echoPin, INPUT); pinMode(led, OUTPUT); } void loop() { long duration, distance; digitalWrite(trigPin, LOW); delayMicroseconds(2); digitalWrite(trigPin, HIGH); delayMicroseconds(10); digitalWrite(trigPin, LOW); duration = pulseIn(echoPin, HIGH); distance = (duration/2) / 29.1; if (distance < 10) { digitalWrite(led,HIGH); } else { digitalWrite(led,LOW); }
Serial.print(distance); Serial.println(" cm"); delay(500); }

=================================
ALTERNATIVE

//  Copy the following and paste into your Arduino software and delete the template provided (the void setup and void loop).

int trigPin = 11;    //Trig - white Jumper

int echoPin = 13;    //Echo - yellow Jumper

long duration, cm, inches;

void setup() {

 //Serial Port begin

 Serial.begin (9600);

Climate change and vinyards

washingtonpost.com

Italy’s wine industry is being tested by the effects of climate change in its vineyards

Livio Salvador walks through his vineyard with his son, Enrico, who says that even if humans don’t fully feel the effects of climate change in the region, “the plants do.” (Chico Harlan/The Washington Post)

RAUSCEDO, Italy — Season after season, he’d been growing and harvesting the same grapes on the same land. But five years ago, Livio Salvador began to wonder whether something was changing.

When he walked through his vineyards, he would see patches of grapes that were browned and desiccated. The damage tended to appear on the

Human Population Growth - updated video

from the American Museum of Natural History:

Motion Sensor code (for next Monday)

PIR Motion Sensor code  - www.goo.gl/YJnGVq

(copy everything below the line and paste into your Arduino template)

Schematic and directions: https://www.mpja.com/download/31227sc.pdf

____________________________________________________________

//    Arduino with PIR motion sensor

int led = 13;                // the pin that the LED is attached to

int sensor = 8;              // the pin that the sensor is attached to

int state = LOW;             // by default, no motion detected

int val = 0;                 // variable to store the sensor status (value)

void setup() {

 pinMode(led, OUTPUT);      // initialize LED as an output

 pinMode(sensor, INPUT);    // initialize sensor as an input

 Serial.begin(9600);        // initialize serial

}

void loop(){

 val = digitalRead(sensor);   // read sensor value

 if (val == HIGH) {           // check if the sensor is HIGH

   digitalWrite(led, HIGH);   // turn LED ON

   delay(100);                // delay 100 milliseconds

   

   if (state == LOW) {

     Serial.println("Motion detected!");

     //Would like to insert code to indicate the date and time of this reading

     state = HIGH;       // update variable state to HIGH

   }

 }

 else {

     digitalWrite(led, LOW); // turn LED OFF

     delay(200);             // delay 200 milliseconds

     

     if (state == HIGH){

       Serial.println("Motion stopped!");

       state = LOW;       // update variable state to LOW

   }

 }

}

A message from our WUSA9 Meteorologist Melissa Nord

Week 2 Slides

Davis Vantage Pro 2 Weather Station Details

Here are the components of the Davis Vantage Pro 2 station we'll be working with:

Davis Vantage Pro 2:
www.amazon.com/gp/product/B001AMRCDU

November 3 Maker Festival

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Welcome!

The 4th Annual Virginia Tech Maker Festival will take place on Saturday, November 3rd, 2018 from 10AM - 3PM at the Virginia Tech Northern Virginia Center (7054 Haycock Road, Falls Church, VA 22043). Stay tuned for further information.

Prepare for a full day of creativity, engineering, and discovery! If you are interested in volunteering for this event, please e-mail Carolyn Darville at carolyn5@vt.edu.

All volunteers will receive a Certificate for their efforts as well as a free lunch. We look forward to seeing you at this free, scientific, community event.

Register Now!

Contact
Carolyn Darville
carolyn5@vt.edu

Loss of Insects?

washingtonpost.com

‘Hyperalarming’ study shows massive insect loss

Oct. 15th, 2018

The emerald anole, one of the main insect eaters in the Luquillo forest of Puerto Rico. (Brad Lister/PNAS)

Insects around the world are in a crisis, according to a small but growing number of long-term studies showing dramatic declines in invertebrate populations. A new report suggests that the problem is more widespread than scientists realized. Huge numbers of bugs have been lost in a pristine national forest in Puerto Rico, the study found, and the forest’s insect-eating animals have gone missing, too.

In 2014, an international team of biologists estimated that, in the past 35 years, the abundance of invertebrates such as beetles and bees had decreased by 45 percent. In places where long-term insect data are

Slides from Meeting One