Arduino Motor Shield

Introduction What is Arduino? Use of microcontrollers has increased largely over the recent past in the field of electronics. Components in the microcontroller family are easy to work with due to their flexibility and simple methodologies. Building these into single circuit boards along with all the controller hardware and all the necessary controls such as inputs…

Temperature Logger Arduino Shield

   What is Arduino? Arduino is an open-source electronics prototyping platform based on hardware and software that are easy to use. Simply said it is a Microcontroller development board one can use to read sensors and control things like motors and lights. This allows you to upload programs to Arduino which can then interact with…

How to make a working RS232 – TTL level converter using MAX232

Today, most of the latest microcontrollers are integrated with at least one USART (Universal Synchronous Asynchronous Receiver Transmitter) peripheral. A well set module is very useful not only to establish a communication medium (receive or transmit data) between microcontroller and PC but also to program the device via preloaded boot-loader. Here is how to make proper level converter using…

Data logging hygro-meter

Introduction  Overview Relative humidity and temperature are essential components of a comfortable working environment. However, there can be some conflict between the needs of people and the requirements for the care of collections. Other thing is that the sensor is very small and it can measure the temperature and relative humidity anyplace (e.g. Internal temperature…

LED notice board

INTRODUCTION LED  display  notice board  is  an  economical  solution  for  displaying  messages  with  various  changing  effects.  It  is  applicable  in  shops,  restaurants,  pharmacies  and  etc . These notice boards can be made in large led panels or led dot matrix displays. They are in mono color , bi color and multi color. Power consuming of…

Propeller clock

Introduction Conventional methods of displaying images or massage to public are using LCD display and dot-matrix LED displays. Propeller LED display is a special kind of device that project an image, text or time as if the images are floating in the air.  Actually the floating images emerge by synchronizing LED’S blink to form an…

Kitchen timer

Introduction Kitchen timer is a device that can be used as a timer to disconnect any electrical device according to the time what the person can set as the connecting time of the electrical device. And normally it can be used for the kitchen items and that is why this device is named as “KITCHEN…

Taxi meter

Contact Pubudu: pubuduaravinda90@gmail.com Introduction This project is base on mainly transport service section. In Sri Lanka there are many taxies. But there is no standard service charge for the journey. The service charge should base on length of journey and parking time. As solve of this I made the “taxi meter”. Through this service charge…

Alarm clock

INTRODUCTION Overview Time is most important thing of our life. Everything is change with time. Nobody can stop or chapter it. We do something in our day to day life at time. The whole world created a method for represent time. We use watch to known the time. There are several types of watches. Watches,…

Persistence of vision wand

                                    Introduction Persistence of Vision (POV) Wands is a way to create long light displays. The wand consists of a single row of LED’s controlled by an ATMEL 328 Micro controls. When the wand is turn on the Leds are lighting on randomly, but if you move it quickly left and right, you will see…