It is important that you do not connect the ground on the 100K
pots wired to the OI. Follow IFI's instructions for the wiring.
If you actually get the wiper connected to the ground the OI
will send 127 and not 0 to the RC. This "feature" is a safety
measure to keep robots from running wild when a connection
is lost. If you can actually turn the pot far enough to get it
connected to ground the robot will suddenly stop instead of
doing what was intended.
This safety measure does not exist for pots connected to the RC
and you connect the ground on these.
Eugene
Quote:
Originally Posted by squirrel
If you look at the wiring diagram for the joysticks suggested in the IFI documentation, you'll see that they show that the 100k pots are only connected to signal and +5V, and not to ground. Last year we connected all the pots on to the OI using 3 wires each: ground, signal, and +5v, and everything worked fine. This makes the pot into a voltage divider, and the signal voltage is proportional to how far the pot is moved towards the +5V end.
You might want to ask IFI is this is an acceptable way to wire up a pot to the OI before you try it.
We wired up that Futaba controller to the 2007 robot OI this way and it works fine.
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