Folding prototypes

Here's a first trial of a folding structure. It didn't work too well; scissor arms are pretty messy, especially since we're building it with a Merkur set.

I think we'll go with a pulley system for a more linear change of motion.

Sketchy Models

A proof of concept for a hinged mouth, closed using buoyant forces.

Filtration Ideation

For the water filtration system, we're looking at working with two methods of cleaning. The first being BioSand Filtration, which improves on traditional sand filters and can last up to 8 years without sand replacement. And finally, to remove all remaining bacteria, a UV filter system will be used.

Open the Vents (with servos)

A test video of the servos opening and closing the vents for the Wind-Inflate-Daily project.

The servo speed is controlled by the temperature of the air.

Folding Water Hourly

It's time to fold. Here's the seed pod holder for the "green wall" prototype for week 2.

Wiring the First Surface

By using the photoresistor as a way to constantly measure sunlight throughout the day, the SmartSurface can record the lengths of day and night throughout the seasons, as the ration of sunlight to darkness changes. By using this ratio as a input, we can control the varying patterns and intensity of the lights and speed of the DC motors that would control the rotating section. Currently, the wiring is setup for only 6 lights and no DC motor. However, using a series of analog shift registers, we can achieve a modular structure that works off of only one Arduino, with only minor speed losses in response time with more modules.

Code:

//PhotoResistor Pin
int lightPin = 0;

//LED Pin
int ledPin0 = 11;
int ledPin1 = 10;
int ledPin2 = 9;
int ledPin3 = 6;
int ledPin4 = 5;
int ledPin5 = 3;

//counters

int led0=0;
int led0d=1;

int led1=6;
int led1d=1;

int led2=12;
int led2d=1;

int led3=18;
int led3d=-1;

int led4=12;
int led4d=-1;

int led5=6;
int led5d=-1;


void setup()
{
Serial.begin(9600);
pinMode(ledPin0, OUTPUT);
pinMode(ledPin1, OUTPUT);
pinMode(ledPin2, OUTPUT);
pinMode(ledPin3, OUTPUT);
pinMode(ledPin4, OUTPUT);
pinMode(ledPin5, OUTPUT);

}

void loop()
{
int lightLevel = analogRead(lightPin);

lightLevel = map(lightLevel, 430, 760, 1, 14);

lightLevel = constrain(lightLevel, 0, 14);

analogWrite(ledPin0, lightLevel*counter(led0,led0d));

analogWrite(ledPin1, lightLevel*counter(led1,led1d));

analogWrite(ledPin2, lightLevel*counter(led2,led2d));

analogWrite(ledPin3, lightLevel*counter(led3,led3d));

analogWrite(ledPin4, lightLevel*counter(led4,led4d));

analogWrite(ledPin5, lightLevel*counter(led5,led5d));

delay(50);
}

int counter(int& number, int& dir) {
if (number>0 && number<18) { if (dir==1) { number++; return number; } else { number--; return number; } } else if (number >= 18) {
number--;
dir=-1;
return number;
}
else if (number <= 0){ number++; dir=1; return number; } }