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1  Using Arduino / Project Guidance / Arduino Generator Transfer on: September 05, 2011, 11:28:40 am
Just got a new idea for a project during our tropical storm after the power went out. What if i had an arduino do everything i just did? Flip main breaker off, turn on the generator, make sure it was running, and gradually connect and turn on individual circuits. I've been running though a scheme of attack for the past hour and it seems possible.

I would think i would need:
 arduino mega
 reset-able fuse for each circuit
 Project enclosures for both inside and outsite by the generator
 remote transmission method, wireless (x bee) or wired. (may be even use the existing wire going to the outside power box)
 miscellaneous buttons and switches.
 arduino backup battery (12V, like the apc back up batteries)
 multiple 5v relays to switch over 120v/240v relays
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some other stuff i haven't thought of.
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The plan of attack is to mount radioshack project boxes (the large ones) on the interior wall and outside with a 16 x 2 lcd. it would constantly monitor the voltage level of the mains power supply. when the power level drops then it would kick over into a standby mode and beep  every second power is off. after ten seconds it would send a command to the outside station and start the generator. after the signal level of the output is consistent (to some degree) it would then begin to activate switches to pull off mains to the generated power. and continue to monitor the mains power supply. when it comes back on, it will wait thirty seconds then begin to one by one switch over back to mains. waits another thirty seconds (just in case) and begins to shutdown the generator.
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Anyone else ever thought of this? Ideas? incite? all is appreciated.  Yes, i am using this as  a blog of some sort
2  Development / Other Hardware Development / Home automation system similar to X10 on: June 05, 2011, 04:47:53 pm
Im working on a new project now, ive been brains storming ideas for this for years, and ive just now able to get parts for it all. I already ordered an ARM9 board
(Specifically :: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110670930230&ssPageName=STRK:MEWNX:IT#ht_2937wt_1139 )
 and it has serial output ports on it that i will be putting into an Arduino mega board to control a sub system. My original idea was to use relays to control all items outside of the panel, but then i realized that there will be a hell of alot of wiring. So im contemplating PLC, or Power Line Communications. I touched on it briefly in Technical school, but never really got into it. I under stand the basic concept of modifying the frequency of the main power lines in my home and adding a signal in the trough of the wave. Then id have to build a filter on the line somewhere and pull the signal off. My question is, is this possible to do with arduino? Im not against building my own circuits (who is??) but id love to have a schematic to go off of. Essentially i want to built a power plug (110V) with an Arduino nano, an interface to the mains power, and a relay to turn off and on the receptical. then once ive mastered the art smiley-grin ill move on to dimmers and what now.
3  Using Arduino / Displays / 128.64 LCD screens on: May 07, 2011, 02:12:42 pm
How resiliant are these LCD screens? im purchasing one for my Suzuki GS500F in hopes of replacing the stock guages. Any ideas for waterproofing? Originaly i was thinking of putting the screen in a RadioShack project box, and putting hotglue along the edges of it, but then i realized that there are openings where the LCD meets the metal. so thats not going to work
4  Forum 2005-2010 (read only) / Development / interfacing arduno with lacrosse weatherstation on: December 26, 2010, 03:21:05 am
But the same hardware. I bought a weather station from walmart some time (no rain buckets ) And i Got the coolest idea too take the data from it and print it over serial to the computer and or an lcd to mount my reciever on the wall. Well the weather station base uses a tranciever. Yes tranciever. It has an eight pin configuration and it looks like the same thing thats in my atomic wall clock.  But the wierd thing is despite my weeks of searching i can not find ANY information about it. Multimeter puts it at 2.99 - 3 volts so il have to use a resistor to step arduinos 3.3 volt rail down. The base unit also has a barometer with a four pin interface. I know that two of them are for power which means that the other two are unknown... Maby. Wishfull. They are serial. But the barometer is on a break out board.. So chances are its just a voltage output..  Can anyone else shed some ligt on this. I dont want to buy those expensive systems off sparkfun when i already got one. Oh and yeah i took that wall clock apart too. Got my self a atomic reciever which i can find information for so yeay!im refering to the lacross WS-1910TWC-IT
5  Forum 2005-2010 (read only) / Development / arduino car battery hookup on: December 16, 2010, 01:14:41 pm
hi. Im on my long project still. And im attempting to check battery voltage from my vehicle and voltage divode it to 4v to an analog in. My math is correct (i belive) but the values i can not find for the resistors. My results: r1: .051k r2: .019 power: 100ua vout: 4v   the battery max is about 14 volts (13.95) thats whith engine running. Can anyone els validate me or is the voltage just too high?
6  Forum 2005-2010 (read only) / Development / Re: long range am tranciever on: November 28, 2010, 02:13:44 am
Your right. The transmitter i was talking about through ramsey was for a fourth mile... 50 dollars.  And this projects doesnt seem that hard to me. Am i missing something here?  Other than the arduino the two biggest comonents are the h bridge and the charging circuit for solar.  I think ill stick with xbee. Last time i checked a ham radio operator license was almost $200.  I could afford to get the 40 mile trancievers for that price. But though thaks for your input. I have gotten my parts list and a 125$ price tag from spark fun 8-)
7  Forum 2005-2010 (read only) / Development / Re: long range am tranciever on: November 27, 2010, 06:33:06 pm
USING am i would use a work around and that was it. But thinking of all this and the support that xbee has i would be foolish with my expierience and knowlegde to venture into that other realm.xbee is a great choice. I was under the impreasun though that the shield came with xbee already installed? If not price is going to raisw and i dont like that...
8  Forum 2005-2010 (read only) / Development / Re: long range am tranciever on: November 27, 2010, 05:27:23 pm
The reason i was wondering about am is because its a good range and ramsey electronics sells an am transmiter that is fcc legal. If i could find or build a circuit that would recieve the signal i could do one way communication to the bot. Essentialy i could just send an init tone or morse and then send a morse of the coords. What would be cool even is if i could find an am broadcastr for arduino. Dont really want to spend 100 on two transmitters.   That newsoftserial really seams like a God send. It would work great. So am i going to have to purchasw two xbees anda new arduino board? Thats about 100 dollars just for communications... Sigh
9  Forum 2005-2010 (read only) / Development / Re: long range am tranciever on: November 27, 2010, 05:23:38 pm
Will the gps work on pins other than those two? Thats what i would be using them for
10  Forum 2005-2010 (read only) / Development / Re: long range am tranciever on: November 27, 2010, 04:29:25 pm
ok so with xbee. i may be hard pressed for pins. i got to acount for two gps pins. three relay pins. pins for two motor channels (using an h bridge. should be 6 pins( 3 for each motor)). a thermister. a voltage divider in from battery. and a photo cell. is xbee going to fit
11  Forum 2005-2010 (read only) / Development / long range am tranciever on: November 27, 2010, 03:53:31 pm
I've dont a lots off searchin on Google But i can't find anything that matches what i want to do. And just to start off. Im posting this on my cell becuase of the lack of internet at my house. My current proje t im working on is dealing with a rover. On board gps. Usrf. Strobes relays etc. I want this to be almost autonomous. Recieving gps coordinates and traveling to the just to start. But im concerned with communication since i can run a two mile usb cable i got to go wireless.  Dont think xbee would go that far (pluss im cut for price). Wifi is definently not going to work. So im wondering if an am radio signal would work... Maby sending morese code back and forth. There are alot of unused am frequencies around me so fcc shouldnt be an issue. Anyone else got any ideas? Are there any alternatives. Btw i would like not to get an arduino mega. I have the 13 pin varrient.
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