Search found 14 matches

by Engineer3104
Thu Jun 08, 2017 6:47 am
Forum: General Discussion
Topic: ASCII in to ASCII out converter
Replies: 4
Views: 1386

Re: ASCII in to ASCII out converter

Unfortunately, the home owner has not decided on how he wants to control things. The receiving end will most likely be a Hunter Douglas hub controlling about 25 sets of blinds. For now, he's looking at using UPB transmitters to control them, as well as about 120 lights in the house. I have access to...
by Engineer3104
Wed Jun 07, 2017 10:13 am
Forum: General Discussion
Topic: ASCII in to ASCII out converter
Replies: 4
Views: 1386

ASCII in to ASCII out converter

Hi folks, I'm in need of a protocol converter to work between two pieces of equipment in an upcoming home automation project. I need a device with two RS232 serial ports. I need to be able to receive a 10 to 12 byte ASCII string on one port and send a different ASCII string response out the other po...
by Engineer3104
Fri Dec 09, 2016 10:11 am
Forum: General Discussion
Topic: Remote Control Light Dimmer
Replies: 4
Views: 1699

Re: Remote Control Light Dimmer

You're welcome ShopRat. After working in the X10 world for over 30 years, I've come to really appreciate the power of UPB. There is a bit of a learning curve, but some excellent tutorials are available on the two websites mentioned. The biggest feature is "Scenes", where you can have one transmissio...
by Engineer3104
Mon Dec 05, 2016 6:05 am
Forum: General Discussion
Topic: Remote Control Light Dimmer
Replies: 4
Views: 1699

Re: Remote Control Light Dimmer

If you've successfully used X10 products before, take a look at UPB products. (Universal Powerline Bus). Like X10, it uses the powerline for communication, but that's where the similarity ends. UPB is MUCH more robust than X10. Stronger signal, many more features. Setup is via your computer using fr...
by Engineer3104
Tue Mar 08, 2016 11:47 am
Forum: General Discussion
Topic: 12Vdc Fan Speed Controller.........
Replies: 24
Views: 4201

Re: 12Vdc Fan Speed Controller.........

How about using two 1.5k ohm 1/4 W in parallel?
by Engineer3104
Wed May 07, 2014 1:17 pm
Forum: General Discussion
Topic: GPS module to Serial port
Replies: 6
Views: 1164

Re: GPS module to Serial port

Can you look at the output of the GPS module on a scope? Check the signal for two things. 1. The level. Some units only send out 0 to 5 volt signals. The serial port on the computer may require true RS232 levels of +12V to -12V. 2. Check to see if the signal is inverted. The output of the GPS module...
by Engineer3104
Wed Sep 18, 2013 10:52 am
Forum: General Discussion
Topic: Replacing plain T8 fluorescent tubes with LED tubes...
Replies: 7
Views: 1839

Re: Replacing plain T8 fluorescent tubes with LED tubes...

These guys may be of help.

Their system uses the existing fixtures, with the ballasts removed.
May be worth a look.

http://www.act-solutions.com/Controllab ... Lites.html


Hope this helps.
by Engineer3104
Wed Aug 28, 2013 6:17 am
Forum: General Discussion
Topic: X-10 modules - homepower question
Replies: 13
Views: 2666

Re: X-10 modules - homepower question

Dac, If you're looking for a more sensitive receiver for the X10 Motion sensors try: http://wgldesigns.com/v572.html These receivers have amazing sensitivity. The version above uses a Powerline Interface to re-transmit the X10 signal on the powerline. They also have versions that spit ASCII code out...
by Engineer3104
Sat Jul 11, 2009 9:17 am
Forum: General Discussion
Topic: DC-DC Converter for USB Hub
Replies: 11
Views: 1625

Re: DC-DC Converter for USB Hub

This regulator might do what you need

http://www.dimensionengineering.com/DE-SWADJ3.htm

I've used several of their products. They seem almost bullet proof
by Engineer3104
Thu Jan 29, 2009 1:05 pm
Forum: General Discussion
Topic: Membrane switch
Replies: 2
Views: 912

How about Digi-key. Check out part # 360-2294-ND
by Engineer3104
Wed Dec 10, 2008 12:52 pm
Forum: General Discussion
Topic: x 10 switch
Replies: 3
Views: 926

There are a few reasons why an X10 dimmer will not work properly with fluorescents. I am assuming you're talking about the simple 2 wire dimmers like the WS467 or PLW01. These dimmers are wired in series with your load. A small amount of trickle current must flow in the circuit to keep the circuitry...
by Engineer3104
Thu Dec 04, 2008 11:57 am
Forum: General Discussion
Topic: 1.5V to 5V
Replies: 23
Views: 4168

Check out this unit from Dimension Engineering. I think it will do exactly what you want.

http://www.dimensionengineering.com/lvboost.htm
by Engineer3104
Fri Aug 15, 2008 11:10 am
Forum: General Discussion
Topic: First impressions of Digi-Key
Replies: 13
Views: 3691

Er.... Janitor Tzap. :???: They're practically across the border from Winnipeg, Manitoba, but I'm two provinces and about 1200km (750 miles) west in Alberta.
by Engineer3104
Thu Aug 14, 2008 11:02 am
Forum: General Discussion
Topic: First impressions of Digi-Key
Replies: 13
Views: 3691

We've used Digikey for several years now. Extremely happy with inventory availability and FAST shipping. Always overnight to Calgary.
It's faster and cheaper than driving across town to local distributors.