copperhead wrote:
> There is a company that makes RC switches for bb cannon used by model
> ship clubs like MWCI that may help. Different ammo but the triggering
> mechanism is similar - 1 shot per pull. http://www.teamdelta.com/
I don't think those circuits "pulse" the load for a fixed period of time
like Modena wants to prevent the load from being active too long. Nor
do they prevent the load from firing again after a "wait" period.
To provide both "pulse" and "wait" capabilities, we can insert another
circuit between the R/C receiver and a standard R/C switch (like those
sold by TeamDelta and others) that changes the servo signal as desired.
Such a "control-side" approach allows the circuit to be used equally
well with any servo-signal device, including servos, servo switches and
even ESCs. So, for example, you could use the circuit in conjunction
with your servo/poppet configuration to ensure that the poppet is
depressed by the servo for a certain period of time or to prevent the
operator from firing too quickly in succession (a problem experienced by
many battlers in a panic).
In addition to the servo signal filtering, I'll also throw in a simple
pair of 5v signal lines that can be used to actuate a $10 commercially
available dual relay board kit, thereby eliminating the need for the far
more expensive dual relay switches sold by TeamDelta ($36+) and others.
Such an approach has been used on the battlefield in the Tiger,
Navarone and now Brumbar with great success. By far the cheapest and
most reliable way to actuate loads up to 10amps.
Frank P.
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