Opto 22

43044 Business Park Drive, Temecula, CA 92590 USA
Local & outside the USA:(951) 695-3000
Toll-Free within the USA:(800) 321-6786
Fax: (951) 695-3095
Email: sales@opto22.com

New Networkable Dimmer Controls LEDs via Serial

Networkable LED Dimmer from Opto 22

With our new solid-state Network LED Dimmer, you can control LED lamps, bulbs, strips, bars, and rope through your RS-485 serial network.

Designed to control 12/24 VDC constant-voltage LED assemblies, the Dimmer uses any of three serial protocols: DMX512-A, Modbus/ASCII, or Optomux.

Since the Dimmer uses pulse width modulation to dim LEDs linearly, there's minimal color shift and performance is flicker free. Best applications:

  • LED color mixing
  • Studio and theater lighting
  • Roadway, step, or path marking
  • Backlighting
  • Facade or wall lighting
  • Other applications that require variable light from LEDs

See the Network LED Dimmer now.

Opto 22 Network LED Dimmer QR code takes you to mobile configuration pages

Bonus! Use your smart phone and our special mobile page to determine how to set configuration for the Dimmer, or to find out what the current configuration means.

It's easy and fast. Just scan or tap the QR code here and follow the link, or scan the QR code on the Dimmer's inside cover. Or open a browser and go to op22.co/LED-SPCV-LV100W. Once you're on the page, tap Configuring.



Amazing Discoveries from James Cameron's Adventure

James Cameron explores the Mariana Trench with the help of Opto 22. Photo by Mark Thiessen/National Geographic.

Remember filmmaker and explorer James Cameron's solo voyage to the bottom of the Mariana Trench, deepest spot in the world's oceans?

You'll also remember that an off-the-shelf Opto 22 SNAP PAC System controlled and monitored more than 180 systems onboard the submersible that got him there—and brought him safely back—including depth sensors, batteries, thrusters, life support, 3D cameras, and lighting.

Recent news from Cameron's discoveries and the material he brought back from the depths was presented at the American Geophysical Union's conference in San Francisco, California, in early December.

One researcher who presented at the conference is marine microbiologist Doug Bartlett from Scripps Institution of Oceanography at the University of California, San Diego. He and members of his laboratory are analyzing the DNA of microbes that can thrive in the pitch dark and punishing pressure of the deep sea.

At Opto 22, we're glad we could be a part of the historic dive and help provide material for scientific research.

Read more about the discoveries from Challenger Deep.

Read more about the technology in the submersible.



Small Parts Now Available in 10-Packs

SNAP STRAP now in packs of 10

Effective today (January 2, 2013), some small parts like fuses and wiring straps will be shipped and sold in packages of 10 only. As the costs of shipping and packaging continue to rise, it no longer makes sense to ship single small items like these.

Avoid delays in shipment. Note that the "B" at the end of the part number indicates a 10-pack. Whenever you order these parts, use the part number with the B at the end:



Tech Tip: True or False?

True or false?

When you're programming, you can usually find several ways of doing the same thing. Sometimes it doesn't matter how you do it, but sometimes you can avoid trouble later by the method you choose.

This week's tip is about testing for True and False, testing whether a digital point is ON or OFF (which is essentially the same thing), and even testing for a zero float value.

While False is usually represented as zero, True may be represented in different ways by different manufacturers or programs. True might be 1. Or it might be -1. Or it might just be "non-zero."

If you're used to one program or system, you may have gotten into the habit of testing for true in a way that reflects how that program or system represents it. But it's safer to get into a different habit: test for a generic non-zero rather than for -1 or +1 or any specific value.

A recent OptoForum thread gives several samples of OptoScript code that do exactly that. You'll still see a variety of methods for getting the data you need, but you're more likely to future-proof your code if you follow some of these suggestions.

Read Not as simple as you might assume: Testing for "true" or 0.0

Ask your questions or comment on postings in the OptoForum.

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