Random wire?

[Clarkus]

Is there any possible way to negate the randomness of the wires re: diffusing?

I want to use this as a prop, but without any sort of reliability, it could waste a lot of shooting time…

I imagine that I coudl hack it to get that effect… but I have 0 experience programming hardware, and I don’t want to dive in unless I know it’s possible, or that there isn’t an easier way…

Thanks!

[Michael]

The behavior can be easily changed with reprogramming. If you have an FTDI USB to serial cable or adapter, it’s fairly easy. I could make the code changes for you.

OR, if you are willing to pay a nominal fee (say, $7 if you are in the US) I can ship you a reprogrammed ATmega328 chip with no randomness. If you are overseas, I’d need to charge more for shipping.

[Clarkus]

Sadly, the prop plays in a couple of days…

HOWEVER!

You have encouraged me to have a go at it, so we’ll see what happens.

Seems to be a skill I should delve into anyway…

[sofiajoe]

Great product!
Without adding a TV B Gone, is there a way to add code to send SONY remote codes? I know how to modify and flash the original code. I’m looking for some fingers to point me in the right direction… I know where to find the TV B Gone code, but I don’t want to muck up the entire project.

[gumbyttl]

@Michael wrote:

The behavior can be easily changed with reprogramming. If you have an FTDI USB to serial cable or adapter, it’s fairly easy. I could make the code changes for you.

Hey, I know this may be a dead end but if code change to specify a wire for det and one for disarm is easy enough, could you post it or message it out. I’m still learning the programming aspects of this stuff.

[gumbyttl]

@Michael wrote:

The behavior can be easily changed with reprogramming. If you have an FTDI USB to serial cable or adapter, it’s fairly easy. I could make the code changes for you.

Is this still an option? I would like to have a fixed disarm wire if possible. Is it code I can just drop in or will it require a major overhaul?

Thanks

[Michael]

setting the wires to be fixed instead of random is simple. Just change the assignment in the function countdown().

For example, if you want the defuse wire to be wire 2:

defuseWire = WIRE_2;

[Martin]

Michael,
You state that the wires can be fixed…”just change the assignment in the function countdown().
Then you show DefuseWire=Wire_2;

However when searching for “DefuseWire” in the program it can’t be found. Please clarify or let me know what to change in the following function:
void countdown() {
int ledCounter = 0;
int ledCounterThreshold = 100000;
byte ledCurrentState = HIGH;
byte defusePin;
byte detPin;
boolean defused = false;
countdownRunning = true;
int fractionalSecond;

// assign random pins
defusePin = random(WIRE_1, (WIRE_4+1));
detPin = defusePin;
while (detPin == defusePin) {
detPin = random(WIRE_1, (WIRE_4+1));
}

[Michael]

Sorry, it’s defusePin, not defuseWire.

So to fix the wires, for example:

defusePin = WIRE_1;
detPin = WIRE_3;

[Author]

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