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well im not very sure but maybe you can take apart a hex bug larva and use the parts for it? :D (im only a middle schooler but this is the best I can think of)
i think sensors should be used to create something like that
There might be little radar sensors and probably microchips to work them.
yaa but i wanna make it without using any programming(microcontrollers)... any suggestions..?
Hmm... I read about orienting a robot towards light.. But not a wall! I wonder if a sensor for radar could have an output that could cause the wheel motors to be powered such that the robot turns. Like|dw:1378059287104:dw|
you can use IR sensors to detect the objects.By comparator circuit and a H Bridge u can run the motors of the robot . In this case you don't require any micro controller
@sandhyaranihb - So, the IR sensors - do you know what they do? Like, do you have an IR emitter and IR receiver and see if the IR receiver picks up the emitter's light (supposedly reflecting off of the wall)?
@theEric - The IR emitter ie simply an IR LED emits the light . whenever some object comes in front of the it the object reflects the light back which is detected by the IR receiver (it can be an IR LED in reverse bias).
Thanks, @sandhyaranihb ! :D