What things do you mean?So if anyone can explain how and why things happen
Wow . that actually is a lot of help !
Project #047: PSoC 4 BLE - Accelerometer Controlled Car
In today's exanmple project, we demonstrate how to implement an accelerometer controlled car.origin-www.cypress.com
Regards,. Dana.
Not exactly but still thank you!
7: Capacitive Accelerometers - Position, Acceleration and Velocity Sensors | Coursera
Video created by University of Colorado Boulder for the course "Pressure, Force, Motion, and Humidity Sensors ". In module 3 you will first learn how magnetic detection sensors such as Hall sensors and LVDT's work, as well as how capacitive ...www.coursera.org
That what you are looking for ?
Regards, Dana.
I am starting to get a better understanding of the circuit. Your sampling rate is 48kHz if i understand correctly , you chose that because it is about 100times more than the bandwidth ? Or am i completely wrong ?The "normal" process of digital filtering is to take a signal, convert it from analog to
digital, process it, then return it to analog. Analog being continuous time domain,
fancy word for a signal as defined here -
Sometimes one does not need to do the back end conversion to analog, example
when seeking a peak value out of a filter just look at magnitude of samples coming
back out of filter, no need to do that in analog domain.
The other big advantage to DSP processing is filter realization, especially in high order
filters where component tolerances and drift short and long term make it impossible
to make a "brick wall" filter.
The DMA process used here are to take samples from A/D and pass them into the filter
for processing. DMA offloads the CPU from having to do this via code, which causes
latency and un-necessary burden on CPU.
Ok , great , i understand what you are saying . But , what cutoff frequency would be appropriate to use for such a system? Is it logical to say that since we want a bandwidth of 400Hz that the cutoff frequency of the LP would be 400Hz ? The use of the LP is to cutoff noise, so we assume that any input with more than 400Hz is noise , is this right ?The filter is a completely arbitrary example, ignore its parameters. I showed this
because you mentioned in an earlier post you would need filtering. You would change
the sampling rate and cutoff and type......for your specific design needs. Nominally you
would start with a sample rate 10x cutoff and optimize from there. Or use one of the
design programs out on WWW and give it design goals, tool would then generate
optimal sample rate and order......
Regards, Dana.
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