Archive

Posts Tagged ‘LEDs’

Arduino: Light Indicator with multi-LED bar graph and light sensor.

October 25, 2012 Leave a comment

This project refers to an Arduino sketch that implements a light indicator with the help of an external sensor (photoresistor) for the recognition of light, and a bar graph of many LEDs used as a rating indicator. Furthermore, if the indicator reaches the last rating which indicates that there is “perfect” light (the maximum light that the sensor can identify) then it plays a melody with a piezo speaker located in the system.

Read more…

Arduino: Alarm clock with light sensor and ON / OFF buttons.

October 23, 2012 Leave a comment

This project refers to an Arduino sketch that implements a simple alarm clock using a light sensor, a piezo speaker, two buttons for functions such as ON, OFF and an LED as the function indicator. When the alarm is in OFF state, then it carries no real operation (just turns off the function indicator), and when in ON state, then it turns on the function indicator and examines whether there is sufficient ambient light (via the light sensor) to produces a musical tune with piezo speaker. This process is repeated continuously if there is sufficient light until the button OFF is pressed.

Read more…

Arduino: LEDs animations controlled by a button.

October 18, 2012 Leave a comment

This project refers to an Arduino sketch which is used to produce animations with more than one LED. You can place several LEDs in a row or in any order you wish and enjoy the flow of traffic. Furthermore, if you wish to change the animation you can choose the next in line by pressing a special button. One such application might remind you of the Christmas lights.

Read more…

The project ‘bgc-leds’ (Handling BGC-8088’s LEDs).

September 23, 2012 Leave a comment

Within the framework of the course “Computer Architecture – Laboratory” (Department of Informatics and Communications, T.E.I. of Central Macedonia), I felt the wish to develop a program that flashes in a sequential manner the light-emitting diodes of the development platform BGC-8088.

Read more…

Arduino: Adjustable mood lighting with voice recognition.

August 21, 2010 Leave a comment

This project refers to an Arduino sketch which, with the help of an RGB LED and a VRBot system, can implement a mood lighting system controlled by voice commands. There are voice commands to activate / deactivate the red, green and blue. The color changes are performed with fade effects.

Read more…

Arduino: Remote Morse Code Web Encoder.

July 23, 2010 Leave a comment

This project refers to an Arduino sketch that implements an online Morse Code web encoder. The Morse Code is until now a global communication system. However, it is now rarely used (it has been previously extensively used in the Navy and the Army in general). In this project, the Arduino works as a server, which remote clients can be connected to with the help of TCP sockets and send occasional messages on a regular alphanumeric form.

For example: “SOS! USA NAVY (12/02/1920, 23:00)”

Read more…

Arduino: POV with ASCII bitmaps and algorithm “Walking 1’s”.

July 2, 2010 Leave a comment

This project refers to an Arduino sketch which implements a POV (Persistence Of Vision) case for the representation of text messages which can contain the visible characters of the character set ASCII.

Read more…