X10 Community Forum

💬General Category => General Discussion => Topic started by: bbrick on July 13, 2008, 03:01:43 PM

Title: voltage increase =rf range increase?
Post by: bbrick on July 13, 2008, 03:01:43 PM

The voice alert sensors I got use 9 volt batteries .  what happens if the vlotage is increased on a ms16a for example?

Title: Re: voltage increase =rf range increase?
Post by: Alan V on July 13, 2008, 04:28:59 PM

You can only increase the voltage to about 5V.  Any higher, and the PIC microprocessor can be damaged.   The Op-Amp can go up to 16V.  I'm not sure about the passive IR sensor, but I think it should be okay at 5V.

Try decreasing the value of R3 instead.  It may increase the curent to the transmitter.

Keep us posted.

Title: Re: voltage increase =rf range increase?
Post by: bitman on July 13, 2008, 07:29:46 PM

Prolly smoke... But yea, keep us posted  ;D

Title: Re: voltage increase =rf range increase?
Post by: bbrick on July 13, 2008, 07:39:24 PM

I'm going to give it a shot on an ds10a after I try "f" connector and lunar lander antenna mod.  I already tried extending the antenna the CM15a came with, not much help.  At least the stuff is so cheap you don't mind blowing one or two up.  Wish I was electrical engineer instead of civil.  Electrical too hard.

Title: Re: voltage increase =rf range increase?
Post by: HA Dave on July 13, 2008, 09:42:39 PM

Quote from: bbrick on July 13, 2008, 03:01:43 PM

The voice alert sensors I got use 9 volt batteries .

Voice Alert Sensors? Those sound handy..... got a link?

I use a voice alert setup that involves using X10 floodlights (hardwired) although I can also use X10 or other wireless devices with it. The voice system I use (BVC (http://www.davesdomainonline.com/bvc/bvc.htm)) works both ways (NOT just announcements) with my X10 Active Home Pro [CM15A and AHP software]. So the babymonitor microphone system I setup allows me to control my X10 automation via voice commands.

You can see the system "in action" at my YouTube Videos (http://www.youtube.com/suitmanIM). Check out the links.

Title: Re: voltage increase =rf range increase?
Post by: bbrick on July 13, 2008, 10:02:27 PM

w w w. v o i c e a l e r t. c o m

Sensors are really sensitive.