Hi all,
I am working a simple project, where my first daq card (NI6009) acquires a data (PWM) from a microcontroller and sends it out to second daq card to control a servo. So one card is acquiring and another is generating the same signal. My problem is that, although the daq cards are set at 0-5V for both input and output, there is an error given by the second daq card saying the voltage being written is either too small or too big ( the value it shows is like - 856 X 10^-6 so thats negative 8 mV). I am not sure where this small negative voltage is coming from.
Any ideas guys?? can i implement a filter or something to solve this problem?
This program is just for testing, later i am planing to transmit the signal over the internet for remote experimentation.
