I decided to try my luck at making a switch that would turn on a LED when writing in a notebook. I decided to put the switch plates on the front and back cover of a notebook.
The plates are pieces of screens that are soldiered to a wire. The square screens are attached to the notebook with foam mounters. When the notebook is opened the front cover will flip around to meet the back cover. Once the square screens meet, the LED lights up.
The screen sensors work quite well, they only need the slightest contact to close the circuit.
As you can see in the pictures, having the switches on both the front and back cover requires wires to run to both. Running the wires to the front and back make the motion of flipping the cover around to the back awkward. The wires travel the circumference of notebook edges, thus long wires are required. Once I discovered the awkward motion of opening the notebook due to the long wires needing to travel the circumference, I decided that a different switch was need to overcome the impracticality of opening the notebook with wires on both covers.
To overcome this dilema, I plan on making a Force Sensitive
Resistor (FSR). If I make a switch that is only on the back cover of the notebook, the wires can run along with each other thus making opening the notebook natural.
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