A blinky thing

[QuarterMaster]

Nick.

International Regulations for Prevention of Collisions at Sea, 1972 (72COLREGS) and U.S. Inland Navigation Rules

—INTERNATIONAL— General
PART A—GENERAL

‡ Submarines may display, as a distinctive means of identification, an intermittent flashing amber (yellow) beacon with a sequence of one flash per second for three (3) seconds followed by a three (3) second off-period (32 CFR 707.7). Other special rules made by the Secretary of the Navy with respect to additional station and signal lights are found in Part 706 of Title 32, Code of Federal Regulations (32 CFR 706).

Though not quite what you would think as a normal “item” to share, those of you who do wish to incorporate a Submarine Identification light in your RC Submarine, the code shown will allow you to do it.

I used an Arduino Beetle

A 5V Power Supply, say from the RX, just watch your total Power Budget, and a yellow/amber appropriately sized LED, and you're in business.

Here it is working, please excuse Panda...
Navigation Light: US Submarine ID Beacon-Arduino Beetle DFR0282

I can't tell you how many times I dragged this, the Masthead Light, 3 peice Windshield, flying bridge stanchions, from U/L OPs Compartment, up 20 ft of bridge access trunk and rig when we surfaced. I was 17/18 y/o full of **** n' vinegar. I was about 140 soaking wet and all that probably weighed twice as much as me. Jr. QM job.

BUT, I was first to crack the hatch, and first on the bridge. Loved it.

Yeah, know that light intimately.

[Monahan Steam Models]

Dang you guys are good and fast!

Ed,

Haven’t plugged in that code yet, but it looks like 3 flashes and a pause before repeating. Okay you have me stumped. What does it mean?

Nick

[Bob Gato]

It really says don't walk thru the airport security with that in your carry on! I love it-BG

[QuarterMaster]

Now use this code and you have something useful....

void setup() {
// Use pin 11 on BEETLE
pinMode(11, OUTPUT);
}
void loop() {
digitalWrite(11, HIGH);
delay(600);
digitalWrite(11, LOW);
delay(600);
digitalWrite(11, HIGH);
delay(600);
digitalWrite(11, LOW);
delay(600);
digitalWrite(11, HIGH);
delay(600);
digitalWrite(11, LOW);
delay(3000);
}

Know what it is...specifically?

[trout]

SOS - just watched too many old movies.

[roedj]

SOS - not just salty dogs but also amateur radio operators (Hams) for over 60 years like me.

Captain Code

[He Who Shall Not Be Named]

S.O.S. (yikes!)

[Monahan Steam Models]

Had a free second today so I made a simple circuit and wrote the code for it. Points if you know the language and know what it says. It’s a little fast so pay attention. I sure you ol salty dogs will recognize it right away.

https://youtu.be/wK1wCBYDFUE