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Post: Hi Robert The time it takes to get the data depends on the programming language you are using, the model of Raspberry Pi and any other running processes that are taking up CPU time. To give you an example on my Raspberry Pi 3+ using a 200KHz clock rate and Python 2.7 I get a sample rate of around 4400 samples per second which means it will take 0.23 milliseconds to read a single sample. Using Python 3.7.3 the sample rate is slightly slower at 4200 samples per second so it will take 0.23 milliseconds per sample. Using our C library with the clock rate set to 200KHz the sample rate increases to 5500 samples per second or 0.18 milliseconds per sample. You can increase the sample rate by increasing the clock speed but then it becomes a compromise between ADC accuracy and sample rate. In our Python library demos folder, there is a [url=https://github.com/abelectronicsuk/ABElectronics_Python_Libraries/blob/master/ExpanderPi/demos/demo_adcspeed.py]demo_adcspeed.py[/url] which you can use to test the sample rate on your Raspberry Pi. Most of the Expander Pi libraries in our [url=https://github.com/abelectronicsuk?tab=repositories]GitHub repository[/url], for the various languages that we support, will have similar ADC speed test demos which can be used to compare the performance of each language.