When you use one of these services to send a text, they are just sending an email to a specific number. Each cell carrier uses a different email address. For example, to send a text to an AT&T phone, you would send an email to x@txt.att.net, where x = the person's 10 digit phone number. Most of these services just use a lookup table to find out what email address to use with what phone number. Here a site listing all the addresses: http://www.emailtextmessages.com/

Its really simple to use PHP to send an email, just look around for tutorials online.

We don't have any gas lines in our house, but this make sense. Our home heating oil tank has a fail-safe shutoff, why wouldn't you have the same thing on a gas line? Maybe something like the hardwired smoke detectors that we have to put in apartments now, but instead of going to a call box, it goes to a gas shutoff valve?

It says its compatible with Arduino shields

Where to plug ??
=>  (Adapter Needed for Shield Form-Factor)

Written like this it is also compatible with 220V and 110V as there is only a adapter needed for the voltage...

Still it are these concepts that can move the world forward. Suppose every laptop and tablet would have a build-in Arduino with some extension slot that can be mapped upon shields or breadboards. Then I could experiment all day !

Apparently that group of 4 headers on the right side of the board are setup the same as the ones on an arduino (two headers for digital 0 - 13, one header for analog in, and one header for power distribution). Its not clear if the logic is 3.3v or 5v though. I would hope 5v, for it to be "Arduino compatible".

They have said that the adapter is just needed to give the correct spacing for the pins, so you could make your own with jumpers if you dont want to wait/pay.

I posted this here because I thought the board might have some sort of connection to Arduino, it seems that is not the case. Not sure how I feel about it using the 'duino name now.

Umm, you need between +7V and +12V, not -12V.

Thats probably just formatting. -12v 3A adapters are pretty rare from my (limited) experience.

https://www.sparkfun.com/products/11712

Saw this on the Sparkfun new product post. Searched for it here and got 1 unrelated hit.

Looks like an interesting product. It says its compatible with Arduino shields, and can be programmed using a simple Arduino-like interface.

P.S.  We rarely prosecute people for lying on gun forms in this country.

I highly doubt that. I "failed" a background check because I put "ME" instead of "Maine" on the form in the address field.

And they didn't prosecute you.  Did they?

And I wouldn't be surprised if I ended up on that list. The system is working as intended, 80,000 people were denied access to firearms because they had a criminal record, but checked the "I do not have a criminal record" box, right after putting in their full name, address, and SSN. We already lead the world in incarcerated persons per capita, how about we dont start jailing people for typos.

I'm assuming subsidies are involved somewhere. Big companies get a preferred rate, and we get to pay for it. It always shocks people when they ask me ship a 15lb prop internationally, and I have to inform them that USPS shipping costs $70, UPS costs $150, and FedEx costs $190. Yet they can have a $30 Ikea chair mailed to them for free through amazon prime.

P.S.  We rarely prosecute people for lying on gun forms in this country.

I highly doubt that. I "failed" a background check because I put "ME" instead of "Maine" on the form in the address field.

Thanks for the replies. I havn't had any consistent numbers to go on. I usually pick a number that seems reasonable for the project, and then work within that (which also lets me discount long term projects).

Just wondering what some of you charge your customers when doing Arduino-related work. I end up making a lot of "custom" changes to the regular airsoft props that I sell, and I really have no idea what the going rate is. The changes I make range from the trivial (adding a couple more blinking LEDs, relays, buttons, etc), to more complex rewriting of code to work with different hardware (going from a serial LCD to a 7 segment display, integrating into existing hardware, incorporating extra shields, etc.). The problem is, even the trivial changes require laying out and cutting an add-on PCB.

I'm trying to find a midpoint somewhere between ripping off my customers and ripping off myself.

Wouldn't it be a lot simpler just to throw in a DPDT switch so you can reverse the leads on the motor?

Or even something like this with DPDT relays:
http://www.homebuiltrovs.com/howtorelays.html

Thats a lot of current, I doubt there is a cheap solution using MOSFET H-Bridges.

EDIT: Scratch that, didn't notice the speed control requirement.

I meant  around 100Mhz  or so.

where I'm from the federal laws say its illegal, but the state laws point to it being legal. Even laser jammers are legal where I'm from.

Isn't it funny how the state of California legalized a federally band substance? Then told the federal government that law dose not apply here. That's because the states tell the federal government what to do its always been like that and it has to stay like that. Unless you want to be a slave.

I don't know where you get your legal advice but your source is just plain wrong. The FCC (F as in Federal) has all jurisdiction of RF laws, the States have absolutely no jurisdiction to change or even supplement the FCC rules and regulations.

Lefty  (WA6TKD amateur extra class)

It would be kind of interesting if it were up to the states though.  And by "interesting" I mean nearly impossible to use. Having your OTA TV signal go to crap because someone in the next state over is using that frequency for their wireless network. Makes me wonder how they did it in Europe. If they had the foresight to set up international standards first, or if they waited till something FUBAR'd.

Is this that CONMAN CREATION of the Decade?

http://www.kickstarter.com/projects/1104350651/tiktok-lunatik-multi-touch-watch-kits?ref=live

Nope. Thats actually a copy of the original ipod nano watch that was funded on Kickstarter. This one only got $950,000.

Now I hate myself even more.

I’m building a tracked platform that is going to be controlled by Arduino mega2560 Rev3 with Xbee 900 RF Control. Is there a way to put a camera to the Arduino mega and transmit the image through Xbee to my computer? Or do i just need to get a separate video transmitter/receiver?

Just get a separate video transmitter and receiver. You're not going to get any good video out of an Arduino.

Panic, sheer panic.
Students everywhere will be failing their final projects, businesses will shut down, LEDs will fall silent, etc.

I guess small business international shipping market is too small and there is no forum to speak to other small businesses sharing the same concerns. Don't know how this postage spike helps these businesses but yeah mail coupons and credit card invitations seem to pour in my mail box just as before. I wonder how much big businesses pay for one letter. Must be a deep discount for them at the extra cost of individuals and small businesses. Those are truly junk mails. No use, no purpose, jamming my box. I have not accepted any single credit card offer even if I receive multiple a week, for at least the past decade or so, that's at least 1,000 mails wasted. I also had to rip them apart since every single one has my address printed on the application.

They used to be nice for starting fires. Now the crappy paper/ink they use makes them useless even for that. I have to use newsprint to start a fire to burn junkmail. FFS.