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If you design your circuit so that the action grounds the arduino pin, then you can use the integrated INPUT_PULLUP setting (it has internal 20kOhm pullups). In that case then reading will be normally TRUE due to the pullup and change to FALSE when the action grounds that input pin.
But yes, if you leave a pin disconnected, the reading will "float" and give you unreliable transient measurements. You want to either pull up or pull down the input pins using a resistor (like 10k or 20kOhm) if it is going to be floating.
If you connect say an analog input to a sensor that continuously reads data, then you should not need a pull up/down resistor since the circuit will never be open.

Jogglet wrote:Does the event timer stop when "The End" starts to play or at the end of the sound "The End?"

. The time stops the The “timer” hears the beginning of the word end.

What is preventing the end message from being theeeeeeeeeeeeeee end? This could add time bringing you closer to the limit.

rmenon1008 wrote:What is preventing the end message from being theeeeeeeeeeeeeee end? This could add time bringing you closer to the limit.

Or you could just wait until 9 seconds and then say the end. That's what we did at our first invitational.

davecutting wrote:

rmenon1008 wrote:What is preventing the end message from being theeeeeeeeeeeeeee end? This could add time bringing you closer to the limit.

Or you could just wait until 9 seconds and then say the end. That's what we did at our first invitational.

^

Any other ideas that you could use a recording device for the final task and without using 2 battery sources?

M1M1024 wrote:Any other ideas that you could use a recording device for the final task and without using 2 battery sources?

Many of the boards that record and then play your voice should have a place to wire in power and ground. Other than that, creative wiring?

How about this? Seems pretty easy to drop a ball on it



Amazon link: https://www.amazon.com/Recordable-Stuff ... al+speaker

antigem wrote:How about this? Seems pretty easy to drop a ball on it



Amazon link: https://www.amazon.com/Recordable-Stuff ... al+speaker

That would work, yeah, although you'd either have to figure out how to hook it up to your existing circuit or lose the one-battery bonus.

Does anyone know of any recordable speakers similar to the one just posted above by antigem, but with a longer recording time?