Tuesday, June 25, 2013

Potentiometer and Next Photo Timer

I installed my potentiometer today, connecting it to the A0 analog input pin. It is used to select the time between consecutive photos. The way I have set it up, the analog values are mapped to times between 45 and 90 seconds. During photo transfer, the elapsed time since the photo was captured is recorded, and subtracted from the potentiometer "time" to tell the user the "Time until next photo". The time can be selected and changed during or after transfer by the user. The implementation was quite straightforward, though the number of wires hanging off the breadboard and Arduino tells me its getting nearly time to get a case set up for this thing! The photo below shows the potentiometer and updated LCD display... which is also getting full... might have to start scrolling or switching between 2 displays to fit all the information I want to show.


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