Looking for a way to synchronize lights,
pnuematic valves, motors or other devices to an audio signal? The
DT4 DTMF Relay Controller provides the ability to independantly
control 4 relays with DTMF
tones. In addtion, a dip switch allows the board to respond
to different sets of tones allowing you to use up to 3 boards on
the same audio signal for a total of 12 independantly controlled
relays.
For each tone "group", a relay can be turned on by sending
the number of the relay (i.e., 1-4) followed by the '*' tone to
turn the relay on or the '#' tone to turn the relay off. Additionally,
the "D"tone can be used to select all relays so as to
turn them all on or off at once. Each relay provides both Normally
Open and Normally Closed connections. |
