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*Q: Come up with some way to verify your guess. How can you determine what value the A/D is measuring internally. Come up with a plausible method, and try it out. Anything goes!!
* taking the photoresistor from your 147A kit, it has a resistance of ~140k - ~800 (depending on your lighting conditions)
* Q: With the same R2 resistor (10k) from above, replacing R1 with the photoresistor, what range of voltages (and corresponding data values) would you expect to see at your A_IN pin?
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===flex sensor = strain gauge ==spectra symbol flex sensor [https://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&krypto=see page 32 in Forest Mims "Electronic Sensor Circuits 6pWdQhy2AZPZ2sD8W5xEl6aJV6WqDHEGqOKNa%2FdOSS9%2BxO5uYYYPAp%2FlelrGLAWKNyXGozz0WUJ%2B%0D%0APBDIeyVBNlu11KbfyDwz& Projects" to make your own.ddkey=CookieLogon]
==== flex sensor =Home made strain gauge ===spectra symbol A poor man's flex sensor [https://www.jameco See page 32 in Forest Mims "Electronic Sensor Circuits & Projects" to make your own.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&krypto=6pWdQhy2AZPZ2sD8W5xEl6aJV6WqDHEGqOKNa%2FdOSS9%2BxO5uYYYPAp%2FlelrGLAWKNyXGozz0WUJ%2B%0D%0APBDIeyVBNlu11KbfyDwz&ddkey=CookieLogon]
[[Image:FSR.JPG|300px]]
One of many Sharp Rangers, with different effective ranges [http://www.acroname.com/robotics/parts/sharp_guide.pdf comparison guide]
* That is a good question.
