A very comprehensive tutorial explaining each and every step for making a digital thermometer. PIC16F876 is used along with LM35 temperature sensor. After reading and converting the values into temperature in Celsius, it is sent to PC over RS232. Continue reading

The post explains step-by-step how to setup XBee modules with PC. It uses X-CTU for configuration of the modules. The posts also helps in testing the communication and range of the modules. If you are new to XBee than this is a very useful post. Continue reading
This tutorial is specially written for newbies to PIC. The article introduces CCS C Compiler and use of Proteus for simulation. It helps you to develop a simple program to flash a LED. Then, the steps for simulation are also provided for Proteus. In the end, two best Ebooks are referred for programming and simulation PIC. Continue reading
AVR are RISC based microcontroller made by ATMEL. This post introduces AVR by the help of a simple program which toggles a LED. It is achieved by the help of WinAVR and ATMEL AVR-Studio. ATMEGA8 is used and is programmed in C Language. Continue reading
After brief introduction to XBee, come the real practical and interesting part. Running a XBee has two options; whether you make your own board for development or buy one from SparkFun. Continue reading
Long exposure light-drawing or “light-painting photography has become pretty popular lately. We see images pop up all the time that look pretty cool. Most of the time people do it by lights in their hand and setup camera onto long exposure. But this project shows what happens if an engineer gets into light-painting. Nils Völker wasn’t feeling very artistic so he made himself a robot. With light at is top the robots makes pattern which are captured on long-exposure. Of course the patterns are pre-defined which can be changed through programming. Continue reading