On the analog sampling rate there you can do it via Arduino or via Linux. To do it via Linux and obtain high speeds you would need to change the .cpp file as shown in Re: Edison ADC . To do it via Linux you can look at Re: Analog Sampling Rate very low and follow the suggestions given.
Regarding the temperature the Edison’s operating temperature is from 0-40 °C. We are currently working on expanding the Edison’s temperature range but there is no information available at the moment. Take a look at Re: Outdoor Applications .
i wanted to use it standalone withou personal computer
a mobile data logger with battery
20min-1h recording time with min. 18khz
i thought there could be written a data file direct to the 4 GB eMMC
later i can download that file when i´m connecting to a personal computer
analog input sampling rate could be too slow
or the writing speed to the 4gb could be too slow
i need a guaranteed information for this case what rate is really possible....
instantly sending the data via wifi or something else fast enough would be okay too....but this needs a bigger baterry then
with 18 kHz and 2Byte you would end up with about 130 MB / h.
I wouldn't recommend writing eMMC so frequently but would rather write in a big buffer in RAM (e.g. on tmpfs) and maybe from time to time send parts over WiFi
sorry i don´t no anything about special memories....i thought it is a type of fast "HDD" to use for storage
short recording times less than 30minutes are okay !!!!
but i have to know what smaple rate i can use with this board in this use
if you write directly to memory you're definitely fastest - faster than you can read out io.
and how fast is the fastes analog i/o input port ? (rate)
nobody knows ?
maximum toleratet accelaration (G) would be interesting too....
This information is taken from the Arduino Hardware guide http://www.intel.com/support/edison/sb/CS-035275.htm
The analog inputs are fed to an ADS7951 A/D converter. This device has the following features:
• 20 MHz clock rate
• 12-bit A/D conversion
• 1 MHz sample rate
• 70 dB signal to noise ratio
• 0 to 3.3 V or 0 to 5 V input range (select either AREF or IOREF via jumper J8 onboard)
The analog inputs are multiplexed with digital I/O using SN74LVC2G53 analog switches. These switches isolate the digital I/O from the analog input to prevent crosstalk.