RGB Led example

A common anode RGB LED is three one colour LEDs (one red, one green, and one blue) housed in a single package. A common anode RGB LED is the most popular type but you can also get common cathode types as well, our example is based on one of. Continue reading

DHT11 Temperature and Humidity 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 easily be constructed on a mini. Continue reading

Piezo Buzzer example

In this example we will connect a Piezo buzzer to our arduino and play some basic sounds, this uses the PWM functionality of the Arduino. Schematic piezo schematic Layout piezo layout Code void setup() { // declare pin 9 to. Continue reading

DS18B20 temperature sensor example

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 DS18B20 digital thermometer provides 9-bit to 12-bit Celsius. Continue reading

LCD4884 shield example

This was another shield that grabbed my attention, this LCD was used on some older nokia phones. You can find it on the internet  at very reasonable rates , I have purchased this as a shield for an Arduino but you can also get a bare module and. Continue reading

Knight rider LED effect

In this next example we will connect multiple LEDs to our Arduino and create an effect called the Knight rider effect (after the TV show) or the Larsson effect (named after the creator of the TV show Battlestar Galactica). In our example of. Continue reading

Flash an LED

The most basic project that you can start with is the capability to flash an LED, this is the common 'hello world' type of program you can write and run on your arduino. Most Arduino's have an LED attached to D13, you are free to use this option. Continue reading