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Wrong value reading ADC
Theusch, Thanks for your inputs. The value doesn't change when I put the scope probe on the ADC pin. I have one Arduino board, and I simulate the adc reading with the...
Wednesday, 12 October 2011 - 20:30
Wrong value reading ADC
Maximax, The way I do calculation, may not be the correct way, but it is based on the following: AVCC = 5.0V 10 bit= 1023 each bit value is 5.0V/1023= 0.00488.... Volts If the...
Wednesday, 12 October 2011 - 20:17
Wrong value reading ADC
Theusch, I did a voltage divider with a 5K potentiometer and applied to the adc input a voltage of 0.050V. I also used (the problem appeared here) a INA138 current shunt monitor...
Wednesday, 12 October 2011 - 18:33
Wrong value reading ADC
Jim, Thanks for your help. Quote: 1. Do you have the analog ground (the one between AVcc and ARef) grounded? I have all the grounds connected to the same point.I have the analogue...
Wednesday, 12 October 2011 - 17:30
Wrong value reading ADC
kk6gm, Thanks for your inputs. I put a delay and didn't' solve the problem. Also I did what you advise, before come out of the function I change the ADMUX for the next channel,...
Wednesday, 12 October 2011 - 17:14
Wrong value reading ADC
Hello all, After better analyzing the problem, the ADC conversion doesn't give any result until the voltage in the ADC pin is >= 0.030V. This is the reason I see only differences...
Wednesday, 12 October 2011 - 14:48
Wrong value reading ADC
Clawson, Thanks, the code you suggest is nicer and more clear. I measure the AVCC voltage and is less 0.001V that the VCC because of the choke I use, Vcc=5.005 AVCC=5.004V. The...
Wednesday, 12 October 2011 - 13:38
Wrong value reading ADC
Clawson, Thanks. Can you please advise a better way to do it. Is there any thing wrong in the code that can generate the problem I have? Thanks and regards, Manuel
Wednesday, 12 October 2011 - 12:59
How to use a library (a kind of)
Koshchi and Pnp, Thanks for your inputs/ help. I am going to order one of these GLCD and try it. Regards, Manuel
Sunday, 18 September 2011 - 10:57
ADC reading problems
Indianajones11, Thanks for your inputs. I am running the MCU clock at 18.432MHz. I use this frequency to have a exact baudrate. regards, Manuel
Friday, 16 September 2011 - 09:53
ADC reading problems
Bobgardner, Thanks for your inputs. I changed the code and its working. Regards, Manuel
Thursday, 15 September 2011 - 23:57
Data Parsing
Clawson, Kartman, Thanks for your opinions/comments. I am going to try make it simpler. Thanks and regards, Manuel
Sunday, 11 September 2011 - 19:14

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