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| Amplifier
Module |
| This
rack mounted module is a headphone
amplifier assembly for a
telecommunications interface device.
It features 3 audio inputs and two
headphone outputs. The headphone
outputs are independently amplified
and controlled. Two 3-position
switches allow the operator to
choose which channel will be heard
through either or both of the two
headphones. There is an independent
volume control for each headphone. |
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| 3-line
Telecom Interface Device |
| The
circuit board shown is the inside of
a specialized; custom made 3-line
telecom interface unit. |
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| Integrated
3-line Telecom Monitoring Device. |
| The
assembly shown is a specialized,
custom made 3-line telecom
monitoring device for use by law
enforcement agencies.
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| Wireless
Remote Throttle Controller.
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| This
microcontroller based device accepts
3 commands via a hand-held wireless
remote control transmitter. These
commands are increase speed,
decrease speed and auto idle. A
cable and drum assembly (not shown)
attaches to the gearmotor shaft. The
cable operates the throttle of a
small internal combustion engine.
Electronic dynamic braking is used
to rapidly stop the gearmotor
between throttle movements. Almost
all of the power required by this
controller is drawn off of the
engine’s ignition magneto with
only small amounts of power
occasionally being drawn off of a
9-volt battery as required under
certain conditions when the magneto
can not supply all of the energy
required by the controller. This
results in a very long battery
service life.
Note:
For tradeshow product
display purposes, this same throttle
controller assembly was reprogrammed
and the gearmotor drive circuitry
was used to drive a small speaker
that simulated the sound of an
internal combustion engine to
simulate the way that an engine
controlled by this device would
operate in response to a person
using the hand-held wireless remote
control transmitter.
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| A
Control Module Used in Traffic
Signals. |
| This
microcontroller based device’s
inputs monitor the sequence of a
traffic signal and sets outputs in
response to the sequence and current
state of its inputs. This circuit
board resides in a small aluminum
enclosure and it connects to a
traffic signal via the circular
plastic connector |
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| Fully
Custom Control System. |
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This
fully custom control system
controls the anamatronics for a
museum display. The circuit board
located near the lower left corner
of the enclosure incorporates both
digital and analog circuitry to
provide serial digital control
signals, as well as three separate
channels of audio content, to the
anamatronic devices used in the
museum display. The other
equipment located in the enclosure
is used to provide power to the
system and also allows the low
voltage circuitry on the circuit
board to control high voltage
lighting and high current motor
loads that are present in the
display.
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| DC
Generator Unit. |
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This
photo shows a hand cranked, low
voltage, DC generator unit. This
device was custom designed and built
for a local museum. This generator
unit is used as part of an
interactive educational display that
explains and demonstrates the
principles of electromagnetism as it
applies to electrical power
generation and use. The key features
of this device are its mechanical
ruggedness, the sectioning of the
permanent magnet generator to allow
museum patrons to see its inner
workings and the incorporation of a
clear acrylic cover in order to
prevent user contact with the
rotating components of the unit. |
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| Custom
Interface Module. |
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This
microcontroller based
interface module
interfaces an analog input
to a wireless modem’s
RS232 serial port and is
used for remote data
acquisition. The serial
port powers this module.
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8-Output
Lighting Display Sequencer |
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This
microcontroller based device is a
multi-function, 8-Output lighting
display sequencer (a.k.a. lighting
chaser). The timing and pattern for
the sequencer operation are DIP
switch selectable. This sequencer
can control holiday lighting
displays as well advertising
displays, carnival lighting, etc.
General purpose AC loads such as
electronic devices and small motors
can also be controlled. This
sequencer can be cascaded with other
sequencers to allow coordinated
control of more than 8 outputs which
is useful for building lighting
displays that spell out messages.
Additionally, other sequencer
products are currently under
development and Amaranthine, LLC
will offer them for sale in the near
future. The products under
development will feature integral
weather tight packaging, smaller
size, unlimited user configurability
and higher current ratings. |
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