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That's a good idea.
If you build this device, please let me know your results.
Solar Thermoelectric Genera...View Instructable »
No, that's not what I'm saying. You show both sides of your voltage divider, consisting of R4 (LDR) and R3 connected to ground. Both the top and bottom of your voltage divider is connected to ground. You can not generate a voltage going to pin3 like that.
These type of sensors that I know about including this one:https://www.sparkfun.com/products/8606Are resistive. The parameters to measure are changes in resistance in relationship to the degree of bending. With the DIY sensors the in-group variance will be greater than with the commercial sensors.
Please let me know which commercial bi-directional sensor you are referring too.
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It can, but it becomes easier for the two copper foils to touch and short the sensor out.
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Yes, I am the author of the book also.
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Technically you can use any conductive material such as aluminum foil. The difficulty is that it is difficult to solder to aluminum and without the conductive foil having a plastic laminate base the foil will deteriorate pretty fast when used.
Usually , yes.John