Today I started with a simple 'BUMPY' robot project. I have made use of the IC-555 timer circuit. Basically this robot bumps into any thing that comes in its way and then turns a few degrees and goes in forward direction again. I plan to add an infrared sensor instead of bump switch, in the future. My search is on for a perfect pair of motors with a range of 1.5-2 volts, hope to find them soon. That's all for now, I will let you know about the progress soon. If you have any suggestions, do let me know.