anybody have a way to elevate the barrel up and down by getting rid of the airsoft unit and wiring it into the elevation motor? this way when you push up on the stick the barrel goes up and when you push down the barrel goes down. it seems easy but it looks like the elevation motor and the gun motor share a common ground. any ideas? thought about relays but my head is starting to spin like linda blair.

Hi pattonrocked
been thinking the self same idea trying out with an old servo as the elevation unit but like you said the wiring is the same old problem so any electronics experts out there HELP!!!!!!!!

dpdt relays would work but how bout diodes??

with my limited electronics knowledge diodes would stop the pos supply from the airsoft going back the wrong way
this is my thoughts pos+ from bb gun -diode - elevation motor/servo up
pos+ from old elevation motor -diode-elevation motor/servo down


Rob

that might do it. gonna head to radio snack and find parts and consult with them also.

another poss is to use the circuit from the servo as it's basically an esc not sure how to wire yet but it's a poss

What you want is called an "h-bridge". Google will reveal all.
Basically the h-bridge uses four transistors or FETs, powered from the battery directly. Then you'd use the signals from the Heng Long board (which may actually be active *low*) to switch the h-bridge direction. It should be quite easily done.

Cheers,
David