OBSTACLE AVOIDING ROBOT

The above circuit is taken from robotroom.com. Visit the page for some interesting fun projects.


Hi junkers !
This is an autonomous robots which uses ultrasonic sensors (40 KHz), which can detect obstacles from 45 cm or less when ever it detects an obstacle it rotates its direction by 180 degrees .Well I am not providing any serious technical stuff because I am quite busy in my academics these days, but if you want to know it schematics more just plug on to Google for an hour or so. If you want to increase its range increase the power supply to 15 volts or increase the operating frequency above 40 kHz and for its faithful detection use more than one sensor.

My team-mates without whom the project would't have been possible:
1>DIVESH DAVE
2>SANKET GHOTEY
3>SAGAR GHOTEY

SCREWING WATER

WARNING: Imitating to construct this kind of boat may be dangerous. Self discretion advised.
This was our first attempt to make a boat totally from junk.We have used cell metal covering to build custom made propellers, ball pen refill and cycle spoke as crankshaft and two rusty motors one for propulsion and one for turning the boat. Styrofoam as chassis or base, an RF transmitter receiver and a 9 Volt battery. The basic catamaran design slices through when you don't have to turn.
Two of my friends with whom I shared the idea and motivation are:
1>Divesh Dave
1>Apoorva Karnik