How about just an old external serial modem?
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On Tue, Feb 22, 2011 at 7:45 AM, yellowfin684 <jaredhaleck@...>wrote:
Ive got a gate to control that has momentary contact closure inputs to both
open and close the gate. But the phone system is tied to the gate and from
the phone system, you have more control. By pressing the following buttons:
1 = open (closes after 30 sec)
2 = open for 30 min
3 = Close
4 = Open indefinitely until the user closes it from phone system
The gate seems to be sensing the touch tone from the phone system to
determine its behavior. The problem is, if the gate is open indefinitely or
for a 30 min stretch, my little momentary contact closure from the control
system won't close the gate.
I am looking for a widget that can issue touch tones (at least buttons 1-4)
Can someone point me in the right direction?
