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ATMEGA328p convert analog value to voltage


ATMEGA328p convert analog value to voltage

By : user3100093
Date : January 12 2021, 01:40 AM
will help you Yeah this is a common mistake. One thinks 10 bits = 2^10 = 1024 and so there will be 1024 steps, right? Nope, 10 bit ADCs only give output up to 1023 (3FFh), because that is the largest number you can fit into 10 bits.
So if you do arithmetic on 1024 instead of 1023, you introduce a very slight inaccuracy in the calculation. I've done this bug myself and it sat in production code for over 10 years without anyone noticing, and when I fixed the bug nobody noticed a difference either :) But naturally we should always strive for program correctness.
code :


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How to simulate a voltage sag/swell condition using Three-Phase Programmable Voltage Source?

How to simulate a voltage sag/swell condition using Three-Phase Programmable Voltage Source?


By : MrClaudiopate
Date : March 29 2020, 07:55 AM
Any of those help Zig-zag signal is typical for a too big simulation step. Adjust max step size in your solver settings.
NI USB 6211 Reading Analog Voltage Input

NI USB 6211 Reading Analog Voltage Input


By : Mohammad Isam Alhass
Date : March 29 2020, 07:55 AM
Does that help The number 1000 that is displayed comes from the second and seventh parameters in your call to DAQmxReadAnalogF64(). The second parameter tells how many samples for each channel you want to take. The sevent parameter (&read) tells it where to store the result of how many samples per channel were actually taken. So you asked for 1000 and got 1000.
At the minute your program is not printing out the data that has been read in. The call to DAQmxReadAnalogF64() performs the data acquisition and stores it in the array specified in the fifth parameter (in your case data).
code :
for (int i = 0; i < read; i++)
{
    printf("Data point %d has value %f\n",i, data[i]);
}
Appropriate sample for PIC ADC after converting from analog voltage.

Appropriate sample for PIC ADC after converting from analog voltage.


By : Pritpal Singh
Date : March 29 2020, 07:55 AM
should help you out When preform sampling on a signal you are not capturing all of is information but only parts of it with a given sampling period.
The Nyquist–Shannon sampling theorem claims that if you can actual sample at above of some given frequency you can get all the information of a finite bandwidth of the signal. This frequency is twice the maximum frequency of that bandwidth.
How to calculate distance using voltage from Q4X Analog Laser Sensor

How to calculate distance using voltage from Q4X Analog Laser Sensor


By : user3010077
Date : March 29 2020, 07:55 AM
To fix the issue you can do
I simply fitted the sensor displayed value with the voltage you give in your question. The R²=1 means that the fit is perfect (or near perfect) and this is a good sign.
How can I vary voltage across USB & detect varying voltage across usb using programming in C or C++

How can I vary voltage across USB & detect varying voltage across usb using programming in C or C++


By : Aabid khan
Date : March 29 2020, 07:55 AM
it fixes the issue You can't - USB is a digital connection and you have no control of the voltages it employs. You can however use USB to communicate with another suitable device which would control whatever voltages you require. May I suggest you take a look at Arduino?
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