= Low Alpha Male approval too.Bits you are a genius
Why does my $6.96 multi remote from walmart hold the codes while I change the batteries but a ms1x can't.
Can I add a cap to these to give me a little time?
= Low Alpha Male approval too.Bits you are a genius
Why does my $6.96 multi remote from walmart hold the codes while I change the batteries but a ms1x can't.
Can I add a cap to these to give me a little time?
http://www.allelectronics.com/make-a-store/item/CBC-17/1-FARAD-5.5-VOLT-SUPER-CAP-/-/1.html
A one farad cap would run a MS14 about a day! rofl
http://www.allelectronics.com/make-a-store/item/CBC-20/0.33-FARAD-5.5-VOLT-CAPACITOR/1.html
Back in tech school days we were told a one farad capacitor would be the size of a house...'course they were still teaching cathod, grid, plate, back then also. :D
what do security systems use for contact closures? I always see two little white contacts with a white cable running down the side of the window or door.
Yup, best way to do it. Once a year I spend a small fortune at the battery store (aka Walmart battery display)and replace everything...clocks, smoke alarms, TV remotes, garage remotes, Motion sensors, Palm Pads, Slim Line Switches, etc. Big PIB but everything is good for another year. Very surprising how many batteries a typical household uses.
I plan to initiate a yearly battery replacement program. In September, I take a day and replace all of the batteries, reset the codes and test. That way, I'll be set for the winter.
Mel
= Low Alpha Male approval too.Bits you are a genius
Why does my $6.96 multi remote from walmart hold the codes while I change the batteries but a ms1x can't.
Can I add a cap to these to give me a little time?
http://www.allelectronics.com/make-a-store/item/CBC-17/1-FARAD-5.5-VOLT-SUPER-CAP-/-/1.html
A one farad cap would run a MS14 about a day! rofl
http://www.allelectronics.com/make-a-store/item/CBC-20/0.33-FARAD-5.5-VOLT-CAPACITOR/1.html
Back in tech school days we were told a one farad capacitor would be the size of a house...'course they were still teaching cathod, grid, plate, back then also. :D
Oh thought I would add that a tantalum cap would be nice. They are very tiny. However,= Low Alpha Male approval too.Bits you are a genius
Why does my $6.96 multi remote from walmart hold the codes while I change the batteries but a ms1x can't.
Can I add a cap to these to give me a little time?
http://www.allelectronics.com/make-a-store/item/CBC-17/1-FARAD-5.5-VOLT-SUPER-CAP-/-/1.html
A one farad cap would run a MS14 about a day! rofl
http://www.allelectronics.com/make-a-store/item/CBC-20/0.33-FARAD-5.5-VOLT-CAPACITOR/1.html
Back in tech school days we were told a one farad capacitor would be the size of a house...'course they were still teaching cathod, grid, plate, back then also. :D
I figure 1 50 uf electrolitic should hold it for about a minute no ? ;) 1 farad caps are hard to
find I think.
Nay-nay, I say.
1 farad caps are hard to find I think.
I doubt even a 1F will keep the voltage up if you trigger the motion sensor during battery changes.Sounds like a challenge...I'm on it. -:)
Of course if some one wants to buy one and test it for us. That would be great.
A-a-a-a-w-w-w Chuck, now ya went an took all the fun out.
The rate of change of voltage across a capacitor is equal to the current divided by the capacitance. So for example if the motion sensor should be triggered while changing the battery and draws, say, 10 milliamps (just a wild guess), the voltage across a 1 Farad capacitor would drop at 10 millivolts/second while the sensor is transmitting - about 0.6 seconds every 10 seconds or so. (As I recall there's a refractory period of about 10 seconds after a transmission during which the sensor won't report further motion.) If it takes 30 seconds to change the batteries and there are 3 transmissions during that period, one might expect the voltage to drop about 18 millivolts (0.018 V).
With a capacitor that size, I'd probably be more concerned that the life of a battery would be greatly shortened just by charging up the capacitor in the first place.
I'm still gonna stick a farad in an "eye", if I can find a place to mount it. Maybe I can put it right behind that little window. -:)
For an experiment, you could just duct-tape it to the outside and leave the battery compartment open for the connection across the battery terminals. :DNow being serious (which does not happen often). I have an Active Eye in the bedroom running off a 3V DC wall wart. Everytime the power flickers I have to reprogram the Active Eye so I have been meaning to try a 1 farad in the empty battery compartment just to see if it would avert some of these re programmings. I guess the test will be a success if I have to reset microwave clock but not the Active Eye. :)%
...
However since there is no low-battery signal from a standard X10 sensor; you know for sure you need a new battery when the sensor no longer responds to motion (or to dawn/dusk). It will have to be determined whether the sensor address programming is maintained at that voltage.
With a capacitor that size, I'd probably be more concerned that the life of a battery would be greatly shortened just by charging up the capacitor in the first place.