 | | Question on analog(). Negative voltage
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Last time, I learned that the values of analog() corresponds to the voltage between 0 and 5. What if the signal to the analog port is a negative voltage. For example, -2 volt ? In that case, does that mean I have to use another formula or make some (...) (29 years ago, 5-Jun-96, to lugnet.robotics.handyboard)
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| | Re: Question on analog(). Negative voltage
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(...) DO NOT SEND NEGATIVE VOLTAGES INTO THE 6811, you will destroy the analog input circuit. Any voltage outside of the 0 to 5 v range is hazardous, unless it is current-limited to a few milliamps. (...) Are you sure about this? On page 49 of my (...) (29 years ago, 5-Jun-96, to lugnet.robotics.handyboard)
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| | Re:Re: Question on analog()....
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(...) Are you sure about this? On page 49 of my copy, it states pretty clearly that the input range is 0 to 5 v. ---...--- Just returned home. I checked the IC Manual of "The Mobile robot Assembly Guide" for the Rug Warrior. On p.66, it reads "When (...) (29 years ago, 5-Jun-96, to lugnet.robotics.handyboard)
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| | Re: Question on analog()....
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(...) Right; a voltage divider probably biases the microphone amp ckt at 2.5v. schematics are provided, no? -F (29 years ago, 5-Jun-96, to lugnet.robotics.handyboard)
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| | Serial IO
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Yesterday I experimented with the Serial IO code in the FAQ. I have a couple of questions though. Here is the basic program that I wrote to try to understand this stuff: I wrote this into hb_lib.c: void disable_pcode_serial() /* necessary to receive (...) (29 years ago, 5-Jun-96, to lugnet.robotics.handyboard)
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