arduino

RGB LED example

This was a quick test for a multi color LED. Pins 2, 3 and 4 were used   [c] int red = 2; int green =3; int blue =4; int j; void setup() { pinMode(red,OUTPUT); pinMode(green,OUTPUT); pinMode(blue,OUTPUT); } void loop()…

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LoL Shield – more examples

random LEDs on using the LOLShield and an Arduino   Switch LEDS off and on by column [c] #include <Charliplexing.h> void setup() { LedSign::Init(); // initializes the screen } void loop() { for (int x=0; x<14; x++) { for (int…

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Colour LCD Shield

The Colour LCD Shield provides an easy method of connecting the popular Nokia 6100 LCD to your Arduino. The board comes as shown with the 128×128 mini colour LCD, as well as a backlight driver circuit (boosts to 7V), and three momentary push-buttons (tied…

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Arduino and LDR example

In this example we connect a photoresistor to an Arduino, the value read from the photoresistor corresponds to the amount of light present. The photoresistor is connected to analog pin 0 in this example. A photoresistor (or light-dependent resistor, LDR, or photo-conductive cell) is a…

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DHT11 sensor example

In this example we will show a basic example of connecting a DHT11 Temperature and Humidity Sensor to your Arduino. This is a very nice little, low cost sensor which requires only a pull up resistor to VDD. This can…

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DS18B20 temperature sensor

The DS18B20 is a  temperature sensor that can be used in various simple projects.  This part uses the 1 wire (I2C) bus and you can connect multiple sensors up to your Arduino. The part is also relatively low cost and only…

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Knight rider effect

In our example of creating a knight rider effect with some LEDs you will require the following parts. Amount Part Type Properties 8 Red (633nm) LED package 3 mm [THT]; leg yes; color Red (633nm) 1 Arduino Uno (Rev3) type…

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Flash an LED

The ability to flash an LED is the most basic ‘hello world’ type of program you can write and run on your arduino. Most Arduino’s have an LED attached to D13, rather than take the easy option we will attach…

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