I am looking at incorporating two peripheral devices into my system, an altimeter and scaling lasers.
Browsing through the forum, I have found a few similar topics with some ideas for implementation, but I haven’t seen much for specific details. I will separate out the two items below and see if I have it straight for what is needed for each.
Altimeter: Using a Tritech micron sounder. All I am looking for is the number displayed, but no system control from it (though an alarm would be nice)
I have seen some others using this @jwalser . As I understand it ardusub will take this in as a range finder, and display in the main HUD. What is the best/easiest method for incorporating the RS232 output into the system? USB to serial into RPi, RS232 shifter into Pixhawk serial/GPS input? Then what is needed to read the message in the data string?
Scaling laser: Using a Outland Technology Laser system.
I believe all that I will need to control this is a Relay/MOSFET activated from one of the PixHawk output (Main or Aux?) and map a controller button to turn it off/on. Am I missing anything on that?