I've been asked to write an application for the Raspberry Pi that uses the DrDAQ data logger to record a low level voltage (100 - 200mA at most). I've written the application but found there are only three data points at a peak in the signal. Is it possible to reduce the voltage range using the SDK, from the default DrDAQ setting of +10 to -10V, increasing the resolution?
I'm using the scope input set, as mentioned, at +10 to -10V. With an ADC of 8bits, this is a resolution of approximately 78mV (unless I've got my sums wrong).
If there is a way to switch ranges to say +2.5 to -2.5V using the SDK, that would give me a resolution to about 20mV. I would have about ten data points per peak if this was possible.
Thanks in advance for any help given.