we’re looking at using the Myxa controller for a small underwater drone that counts fish. We’re drafting the electronics board and I just need to clarify a few things for that process. I believe that most questions can be answered in a few words.
Integration strategy: We’ll start out with a setup where we use RCPWM for control and UART to query for current, RPM, and temperature. Am I right in understanding that this is a working setup?
The binary UART protocol can “found” in Kuscher’s source code – I understand. You don’t have some sort of example code for working the protocol between a Myxa and a u-controller?
We are concerned about ground loops. Therefore the question, if power- and ground levels on the Myxa are connected? Do you recommend adding an opto coupler in the link between u-controller and Myxa?
Logic levels: To what voltage level are UART and GIOs tolerant? What is their output level?
Is AUX_VDD on the GPIO-port driven by the Myxa or by the host system/u-controller?