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1  Using Arduino / Project Guidance / Re: GSM Controller for 12v Utility Pump on: April 10, 2014, 10:05:47 am
Thanks for both your input guys!  There is also a GSM Relay Controller with 7 channels  250V 10A 50 Hz relay contacts.  However, I didn't read anything about a quad band GSM receiver.  In getting the industrial grade GSM Relay Controller I could update my project to stronger more powerful hardware, such as, a pump with requires 1/2 horsepower.  I'm thinking to power the project with a single car battery.

http://www.ebay.com/itm/Seven-Relay-Output-GSM-remote-control-switch-device-DC12V-Power-input-/151274837051?pt=Home_Automation_Controls_Touchscreens&hash=item2338aed43b
2  Using Arduino / Project Guidance / GSM Controller for 12v Utility Pump on: April 10, 2014, 08:37:42 am
I'm considering on buying a 12v GSM Controller with 2 relays that can power 30A, 220VAC, 4000watts each.  I want to control a 12v utility pump which consumes 12 volts DC, 5 amps, 50 watts.  Is this overkill?  Can the GSM Controller handle this task easily?

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=151250322106

http://www.ebay.com/itm/Brand-New-Marine-12-Volt-Utility-Water-Pump-Bilge-Stainless-Steel-Pump-Housing-/151273554059?pt=LH_DefaultDomain_0&hash=item23389b408b
3  Using Arduino / Project Guidance / Re: Charging 3.7v 165mAh LiPo battery on: February 15, 2014, 11:01:29 am
When should the led be lit or not lit?  I'm curious if i wired up everything accordingly.  This is a 1 cell lipo battery charge circuit.
4  Using Arduino / Project Guidance / Re: Charging 3.7v 165mAh LiPo battery on: February 12, 2014, 12:09:17 pm
I finally got this project wired up.  Now what if the CHG line doesn't have a system load?  You know, something the battery would normally power if not charging.  I'm just looking to charge the 2 lipo batteries w/o a system load.  I thought maybe the CHG pin would have to be tied to GROUND.  Is that true?  Otherwise it looks as if the indicator led may not be tied to GROUND unless it is doing it thru the MAX1811 IC.  What should the normal operation look like for this circuit?  When should the led be lit or not lit?  I believe the indicator led should be lit when the battery gets plugged in.  Then the led turn off when the battery if full.  How should it function?  Thanks.
5  Using Arduino / Project Guidance / Re: What is Special about Arduino Pro on: January 11, 2014, 06:17:31 am
just trying to understand better.  i'm not using this in a project right now. thx!
6  Using Arduino / Project Guidance / Re: Turn ON/OFF Battery Powered Toy with Pushbutton on: January 11, 2014, 06:14:08 am
damn, thanks for the heads up!
7  Using Arduino / Project Guidance / Re: What is Special about Arduino Pro on: January 10, 2014, 03:47:43 pm
That's true but the RST pin is also on the FDTI header.  The CTS-I low power pin would connect to GND on the FDTI header as well.  Your right though.  I should have directed my question to the BT hardware.
8  Using Arduino / Project Guidance / Re: Turn ON/OFF Battery Powered Toy with Pushbutton on: January 10, 2014, 03:29:18 pm
I want to buy these waterproof latching push button switches, but I don't see any mentioning of use with 3.3v, 3.7v, or 5v.  Would these switches work alright for these voltages? It only mentions 12v in the ad.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=390714880591
9  Using Arduino / Project Guidance / Re: What is Special about Arduino Pro on: January 08, 2014, 06:16:18 pm
Does anyone have an example of the RST reset pin and CTS-I low power functionality pin used in a project?
10  Using Arduino / Programming Questions / Re: Bringing Reset Pin Low to Upload Code Wirelessly on: January 08, 2014, 05:35:57 pm
I'd really like to know how to use the RST line for uploading new code.  please help!
11  Using Arduino / Project Guidance / Re: Turn ON/OFF Battery Powered Toy with Pushbutton on: January 08, 2014, 03:33:37 pm
whatever a standard little dc motor would use.  Maybe 0.3A  otherwise said 300mA.
12  Using Arduino / Project Guidance / Re: Photocell Light Resistor Measurement Above/Below Water Level? on: January 08, 2014, 03:29:59 pm
me too.  I wonder how that would be designed.  What is the sensor called?
13  Using Arduino / Project Guidance / Re: Turn ON/OFF Battery Powered Toy with Pushbutton on: January 08, 2014, 04:29:30 am
You can get latching push buttons that behave just like a toggle or slide switch - is that what you are thinking of? Toggle and slide switches are probably more common.

...R

yeah that is what I need.  I understand now that no software is needed for ON/OFF.  Afterall, if the device has no power it's not going to read anything.
14  Using Arduino / Project Guidance / Re: Turn ON/OFF Battery Powered Toy with Pushbutton on: January 08, 2014, 03:58:46 am
The toy consumes 1.0A current.  I just want to control power to the toy. No sleep mode.
15  Using Arduino / Project Guidance / Turn ON/OFF Battery Powered Toy with Pushbutton on: January 07, 2014, 08:38:35 pm
I'm looking to turn ON or OFF my arduino toy using a push button.  Does anything need to be written in the code to handle power on/off? smiley-eek-blue
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