Android+Controlled+LED+Light+Dimmer

ANDROID TABLET CONTROLLED LED ARRAY  DIMMER via BLUETOOTH //by : Joe Francis Casili Ramos//

 Dimmer saves energy while setting the right light level to improve mood and ambiance. Using light emitting diode (LED) arrays are a great energy-saving alternative to incandescent or halogen light sources.

 Majority of the LED Dimmers available in the market today are manually controlled type. This type of dimmers cannot be controlled remotely by mobile devices. Because of this, we come up to have a LED Dimmer which can be controlled remotely by mobile devices such as smart phones and tablets via Bluetooth connection. This kind of LED dimmers can be controlled by any kind of Android based smartphones or tablets that have a Bluetooth connection capabilities and an installed Mobile Application that can control the brightness of LED Arrays.

SYSTEM ARCHITECTURE:



The system is composed of three parts:

 A. LED Arrays  B. LED DRIVER + ARDUINO ( with Bluetooth) module.  C. The android mobile control applications installed in the  Android mobile phone or tablet.

**THE LED ARRAY:**  **It consist of array of white Super Bright LED connected in parallel. In the project case, the LED arrays consists of 19 LEDs in all. This LED array served as an actuator, it emits visible light. The luminous intensity of LED arrays is dictated by the setting of the slider position we set on the mobile android control application.**

**THE LED DRIVER + ARDUINO ( with BLUETOOTH ) Module:** 

**This module consists of three sub-module: The ARDUINO UNO Board, the Bluetooth shield and the LED Driver Module.**

**a. The Bluetooth Shield is connected to the ARDUINO UNO Board in** **order to make the ARDUINO UNO board communicate into other** **Bluetooth devices.**

**b. The ARDUINO UNO Module is the one who communicates to** **other Bluetooth Devices. It reads data transmitted from the** **mobile devices and process it. Then it sends triggerring signal** **or PWM signal to the LED driver.**

**c. The LED driver module simply drives the array of LEDs when it** **receives a PWM signal coming from the PWM output pin of** **ARDUINO UNO module.**

**MOBILE ANDROID CONTROL APPLICATION SCREENSHOT:**


 * This mobile application serves as user interface to our LED Light Dimmer. We can vary the brightness of our LED Array from no light up to full brightness by merely using the slider ( at upper right hand corner of the mobile application screenshot ). **