This is a Simple bot inspired from the Beetle bot of the Instructable, very long back.
This Simple concept uses SPDT switch to reverse the polarity of the motors and an antenna like structure can be used in front of the limit switch, which help the bot to search for obstacles and alter-course.
A simple not complicated circuit.
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Step 1: Things Required
2. SPDT switch *2
3. AA- batter *2
4. Sheet metal of bendable thickness, (a sheet of old Body spray will do)
6. Mini 0n/0ff SWITCH
7.Battery lead clippers as to connect antenna with the limit switch
Step 2: Tools and Accessories
Double side tape to hold motors, battery tray.
CA to hold the SPDT with the body.
Pliers, X-acto knife.
Step 3: The Making
1 Person Made This Project!
Vishnu Menon made it!