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10 years, 8 months ago.
Serial Read
Is it possible to read a voltage that is being applied to a analog read pin from a voltage divider. Im using the LPC 1768, and the putty serial read program
1 Answer
10 years, 8 months ago.
Have you looked at the AnalogIn Handbook Page? On the LPC1768, you can use pins 15-20 as to read a voltage between 0 and 3.3v.
I think as long as the voltage doesn't go above 3.3v, it should be fine from a voltage divider.
Is that what you were after?
Sort of. I have 3.3 volts being applied to a voltage divider consisting of to light dependent resistors. when the resistance changes I have my code to scan for .80 percent of the applied voltage and also to scan for .20 percent of the applied voltage to. What I would like to be able to do is see in real time with a serial read program to my computer,so i can see the amount of applied voltage that is at my analog in pin.
posted by 12 Dec 2013