TTL Serial JPEG Camera,
The camera comes with, manually adjustable focus, auto white-balance, auto brightness and auto contrast. It also has a motion detection built in. Which means you can get alerted when something moved in the frame. It only uses two digital pins or TLL serial port.
http://www.adafruit.com/product/397
int ledPins[] = { 3, 5, 6, 9, 10 };
int pinCount = 5;
int ledFade[5];
int i;
int prevTime;
int interval = 700;
int fadeSpeed = 5;
int prevFadeTime;
void setup() {
/*
for (int thisPin = 0; thisPin < pinCount; thisPin++) {
pinMode(ledPins[thisPin], OUTPUT);
}
*/
Serial.begin(9600);
Serial.println();
Serial.println(“Begin”);
}
void loop() {
int currentTime = millis();
if (currentTime – prevTime >= interval) {
ledFade[i] = 255;
i++;
if (i == 5) {
i = 0;
}
prevTime = currentTime;
Serial.println(currentTime);
for (int n = 0; n < pinCount; n++) {
Serial.print(n + 1);
Serial.print(“\t”);
Serial.println(ledFade[n]);
}
}
if (currentTime – prevFadeTime >= fadeSpeed) {
for (int n = 0; n < pinCount; n++) {
if (ledFade[n] >= 1) {
ledFade[n] = ledFade[n]-1;
}
}
prevFadeTime = currentTime;
}
// display section:
for (int n = 0; n < pinCount; n++) {
analogWrite(ledPins[n], ledFade[n]);
}
}
int ledPin1 = 10;
int ledPin2 = 12;
int ledPin3 = 11;
int ledPin4 = 9;
int ledPin5 = 13;
void setup() {
pinMode(ledPin1, OUTPUT);
pinMode(ledPin2, OUTPUT);
pinMode(ledPin3, OUTPUT);
pinMode(ledPin4, OUTPUT);
pinMode(ledPin5, OUTPUT);
}
void loop() {
// read the input on analog pin 0:
int sensorValue = analogRead(A0);
// The analog pin reads from 0 to 1023.
// This commands maps those numbers from 4 to 0
// So 0 becomes 4 and 1023 becomes 0
int mappedSensorValue = map( sensorValue, 0, 1023, 7, 0);
//Here we test the mappedsensorvalue. If it is greater then 1 we turn
// on the LED on Pin 2 and then see if it is greater then 2.
if (mappedSensorValue > 1 ) {
digitalWrite (ledPin5, HIGH);
if (mappedSensorValue > 2) {
digitalWrite (ledPin4, HIGH);
if (mappedSensorValue > 3) {
digitalWrite ( ledPin3, HIGH);
if (mappedSensorValue > 4) {
digitalWrite ( ledPin2, HIGH);
if (mappedSensorValue > 5) {
digitalWrite ( ledPin1, HIGH);
} else { //If it is not greater we start turning LEDs off.
digitalWrite ( ledPin1, LOW);
}
} else {
digitalWrite ( ledPin2, LOW);
}
} else {
digitalWrite ( ledPin3, LOW);
}
} else {
digitalWrite ( ledPin4, LOW);
}
} else {
digitalWrite ( ledPin5, LOW);
}
}
This guide shows you how to quickly and easily build an Arduino-based robot. Robotics is an exciting and fun hobby that has become very affordable in recent years. What would have required a lot of money and experience to do a few decades ago is now affordable, easy, and most of all, FUN!
Simple Arduino Robot
The parts used in this guide can all be purchased together in the Funduino UNO Robotics Kit, but you can follow along with a different kit just as easily as long as you have similar components.
Keep in mind that this tutorial shows just one way to make a robot — you’re limited only by your budget and imagination. If you want to buy more sensors, or a nicer chassis, go for it! The entire process may take an hour or two, so get ready to have some fun!
http://makezine.com/projects/building-a-simple-arduino-robot/
MIT student Dheera Venkatraman has developed a new way for users to wirelessly unlock their doors with simple Google Now-like commands.
The Maker created an app — which is aptly dubbed “Sesame” — via Google Now that lets those adorning an Android Wear watch on their wrist to utter the words “OK Google, Open Sesame” to open a door. That is, of course, after the door is rigged with some “simple yet trivial” hardware.
To bring this idea to life, Venkatramann modded his door with an Arduino Uno (ATmega328), a Bluetooth module and a servo, which allows the lock to be activated via its accompanying app. The servo is attached to the door latch, while the Bluetooth module awaits a trigger signal and communicates with the Arduino over serial. Once the process is complete, the Arduino activates the servo to open the door.
Android Wear app lets you unlock doors by actually saying “open sesame”