Today i managed to get the front wheel working by using one of the small red wheels and changing the design slightly, the wheel now turns at a 90 degree angle. To get it to work we had to do two things. Firstly the wheel had to be connected in a way that it was trailing its pivot/ the point at which it rotates. Secondly we had to move the batteries to the back as they were putting too much weight on the front wheel which increased friction and hindered steering. Here is a quick vid of the buggy in action.
As you can see the buggy works as follows, when one ldr is covered it turns one way, when the other is covered it turn the other way and finally although the videos does not show when both ldrs are covered the buggy reverses.
NEXT STEP
tomorrow we will be:
- wiring up the leds and connecting them along with the ldrs to the chassis
- creating a second program that incorporates interupts
- connecting a switcth to the circuit
- begin calibrating the LDRS
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