GMU:Devices of Perception/Francis and Paul: Difference between revisions

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→‎ASSIGNEMENT N° 3 - DRAWING MACHINE

Francis k

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 ASTABLE 555 - RESISTORS as SWITCHES
-VEHICLE, MODEL N° 2, DRAWING MACHINE
+for our third assignment, instead of starting from scratch – we decided to continue working on our vehicle as we had become quite fond of it.
-The basis for our third assignment was the previous one. Instead of the photodiode's resistance triggering the Double Pole Double Throw - Relay, we decided to only work with the common resistors and capacitors as our aim was to make the vehicle move in a certain rhythm. We added another Double Pole Double Throw - Relay, two 555 Timers and two TIP 122 to the breadboard. This allowed us to control both of the motors separately from each other.
+The main question was; what could this vehicle do?
+The answer came quickly. With a pen or felt tip attached it could become a simple drawing machine.
+Whilst making the vehicle its self more sturdy with a metal framing – concidering the cricuit we took a step back. Instead of it being reactive to light through the comparator it was controlled by two 555 timers. Now each motor could act independently. With it not being reactive we could analyze the patterns better that it would produce. The patterns depend on the timing of the ICs and therefor could be altered by changing the resistors and capacitors on the breadboard.
+In a further step we are considering combining the Assignments 2&3.
+the drawing machine could become reactive again. Ideally it would still produce recognizable patterns, but vary these once the lighting situation changes.
+Also finding a different drawing tool, so the vehicle doesn't have to be limited to a sheet of paper would be something to take into account.
-To improve:
-Add photodiodes so that you can influence the rhythm of the motors moving forwards/backwards permanently.
 [[File:VEHICLE TOP.jpg|300px]]