Some readers may recall building a line-following robot during their school days. Involving some IR LEDs, perhaps a bit of LEGO, and plenty of trial-and-error, it was fun on a tiny scale. Now imagi… ...

To try it out, I designing a pcb for interfacing an Arduino to two robot motors (scroll down here for original design), to which I have added a few more resistors to make sure all the transistors are ...

Line Followers are a tried-and-true type of robot; both hardware and software need to be doing their job in harmony in order to be successful at a clearly defined physical task. But robots don&#821… ...