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Hello all, quick (and probably dumb) electronics question. Suppose Calculon had 3 7805 voltage regulators in parallel, like such: 

Would such an arrangment share the load evenly?

Happy Holidays LMR,

Calculon is wondering if any of you have used bluetooth with arduino successfully. And if so, what did you use?

He's aware that there's an Arduino BT board, but he's looking to use a standalone module with his Mega to talk to his android phone. Anyone have any experience with this?

Would this work for this purpose?

check out this inchworm tech:

http://www.instructables.com/id/Simple-Bots-Inchworm/

Guten tag LMR,

Calculon is going to build this ciruit, but he wonders if his fellow LMR can comment on it before he starts. He's tested each component, but hasn't put them all together yet. Calculon's multimeter just blew a fuse, so he can't really measure the output at the moment. He has a wicked cool motor controller and he doesn't want to accidentally convert it to smoke. Here's the circuit:

Hello all LMR,

Calculon continues to work on his XMOS challenge, but has once again come across a snag.

The SNAG: He is trying to power his picaxe with a 5v out from a motor controller. It doesn't work.

Hello LMR,

Calculon has been tinkering with his Arduino for a few months now and he likes it. He is at the point where he is trying to get his 'duino to communicate with another device. His question is: HOW?!?!?

More specifically:

1. Does he use the Serial.print command? Serial.write?

2. How does he send more than one byte at a tyme?

3. Here's an example of the required byte sequence:

     in hex: 0x8D, 0x7F
     in decimal: 141, 127

Does he just send one byte, and then another? 

Calculon is discovering the wonders of arduino programming, and he is confused with the function (subroutine) action. He defines and declares a function, but nothing happens. Behold the simplified code:

void loop(){

   goMotor;   //call the goMotor function

}

void goMotor(){    //activate dc motor via h-bridge

digitalWrite(4,HIGH);
digitalWrite(5,LOW);

}

Hey LMR:

Has anyone used these?

Calculon picked up a bunch for cheap, but hasna figured out how to work it. His is an l7819, though. He's wired it up like so:

Which doesn't show any kind of result. Any ideas?

Before you ask: yes, calculon is a friend of the Google :>