Showcase

A few days ago we got several ATTiny85 ICs (datasheet) and this is a first video of the small chip in action. Working out the kinks of programming this little guy with an Arduino Uno and getting Arduino libraries to work with it takes a bit of effort and digging around the forums. Still, as a small, light and cheap (can be found for $1.15 online) alternative of an Arduino Uno – it looks very promising! Here is a detailed tutorial on how to program the ATTiny using an Arduino Uno. ...

Test #3 of my Arduino Uno controlled line following bot for the upcoming competition. This test was focused on checking how the bot handles 90 degree turns with sharp corners, line intersections and line breaks. The robot uses 6 TCRT5000 IR reflector sensors positioned in a line. ...

This is a very basic line following robot using 4 IR led sensor receiver pairs in a line, continuous rotation servos and Arduino Uno. The wheels are made from beer coasters and I was planning to add a wheel encoder using another IR led / sensor pair at a later stage. The logic is very simple, but works well to test the line detection and the basic movement commands. The next step should be applying a better control mechanism, maybe PID? ...

Release Candidate Very hard to keep it steady as voltage increases. That’s the best speed/stability result I got so far. Now using 3 sensors. The video below has it running at about 6V. Test 1 With differential steering This is the project in a very early stage with a regular RC toy steering mechanism. Using 2 IR sensors to detect change in color and correct direction. It’s pretty rough right now and it overshoots all the time. Not the best hardware… No word about software (don’t want to blame myself 🙂 ) Bare steering logic (RC toy version) ...

Turns out that rechargeable batteries and the L293D motor controller really slowed things down. Added another battery pack, and with 12 volts the bot actually moves. No smoke coming out of the motors, so all is well….

Here i tested my bread boarded tank against a simulation of the trial. http://www.youtube.com/watch?feature=player_embedded&v=KjCIk-AGLy4 Comments Comment by Wagner on 2012-11-27 11:47:16 -0700 Man, you are way ahead of the game (also considering that the video is 54 seconds long) Great work!

Big Boy video 2 It just needs to go to the right direction now 🙂 Comments Comment by Stan on 2012-11-19 10:15:01 -0700 That’s a lot of shoes! Maybe it went back for a breath of fresh air? …and big suitcase looks suspicious…

..or rather what is left from a perfectly decent remote controlled tank! http://www.youtube.com/watch?feature=player_embedded&v=ff5dCPZQmjs Comments Comment by Kevin M on 2012-11-14 13:27:13 -0700 Good movement for the tank. Have some questions about fetish’s though… Looks to be a bit of Rubber and Boots to me!

Not really sure why his creator named him “Bad Boy”. There is actually a smiley face painted on the car! Comments Comment by Wagner on 2012-11-18 13:52:25 -0700 He prefers to be called “The Big Boy” to disguise his true personality.