Some projects which made by me when idle or not-too-overhead time. Feel free to ask me if you have same interest.

  • Electronic
    • Simple Line Tracker Robot
      wedus gembel
      A simple line tracker robot built with AT89S51 and 5 sensors (IR LED and Phototransistor) which coded in assembler (ASM51). Robot was moving just with Proportional (P) control (PWM Gain), for better acceleration i suggest you to add Derivative control. You can watch the video of my robot here. Source code can be downloaded here. Rough explanation (in Bahasa Indonesia) can be read here. Sorry if i couldn’t provide its schematic here. Well, source code gives you obvious connection. For line detection sensor, you can googling by yourself.
    • Simple Line Follower Robot With PID
      robot semar mesem
      Overall robot was built by Dadank, program was coded by me. Explanation in Bahasa Indonesia can be read here. Picture in different looks at picasa. Video while robot moving fast and slow. Source Code is here.
    • Simple Fire Fighting Robot
      ghotic-s tampak samping
      Er, this robot is not completely finish. It tooks me more than two weeks to get everything clear. This robot has three microcontrollers, the master (ATMega16); which acts as a referee where it decides robot navigation based on Fuzzy Logic, the 1st slave (ATMega16); which controls 6 ultrasonic sensors (PING) and the 2nd slave (AT90S2313); as an additional sensors placeholder (CMPS03, 2 GP2D15 and two bumper switches). For candle’s flame detection it uses UVTron. Unfortunately, i didn’t make video for this robot and now the robot became cannibal spare part for new CERC’s robot. OK, here are the source code which coded in C using CodeVisionAVR IDE :

      • Master uC (receives PING data from 1st slave and does FL rules)
      • 1st Slave uC (transmits PING data into its master)
      • 2nd Slave uC (i coded only CMPS03, the rest is your homework :) ).
    • Simple Digital Lock

      I have no idea if someone still searching this stuff. Simple Digital Lock with LCD was made for my damn PI. Really simple, using AT89S51, LCD 2×16 (any LCD based on Hitachi 44780 chip controller) and numeric keypad. Files, source code and paper (in Bahasa Indonesia), can be downloaded here.
    • Digital Clock + Stopwatch
      Read my blog post here.
    • Automatic Fan With PWM Control
      I built this one for my friend’s PI. It uses LM35DZ and built in ADC on ATMega8535. Here’s the source code.
  • Web
    My enthusiastic in coding semantic markup begin when i realized that most available free wp themes are structured with semantic valid-XHTML markup layout. Wordpress offers simplicity in creating a theme. My steps are : 1) Make a layout draft (only XHTML and CSS). 2) Slicing that layout (header, sidebar, index & footer) 3) Replace all static text with template tags. Fortunately some friends appreciate my design and decide to use it in their live sites. Here are live sites using my design :

  • Etc
    • Face Detection, i’ll edit this section later
    • Face Detection benchmarking