Okay, hear me through :)
I have a Uno and am happy to get a Mega (to get the 54 pins) but I want to run a question past the forum for feasibility.
I want to blink 200 LEDs. Yes, I know there are only 54 pins BUT what I want to do is use 4 banks of 50 LEDs giving 200 LEDs.
So pins 0 to 49 will have 4 LEDs connected to EACH pin(or plug or whatever they are called) :)
The first LED from each pin will be connected to pin 50. The second LED from each pin will be connected to pin 51. Third to pin 52 and fourth to pin 53.
One of pins 50 to 53 will be switched on at random. This will activate one bank. Within that bank I will randomly blink one LED.
So 200 blinking LEDs but will this work? Pins 0 to 49 will have to be input, right? And pins 50 to 53 output? If I put the 220 ohm resistor on pins 50 to 53, can I do it all with FOUR resistors. I will vary the delay (and interval) for each blink but only ONE LED will be firing so current drain is not a consideration
I have been programming computers for more years than I can remember so the logic will be child's play to me.
My question is - Will this concept work?
I suppose I could try 4 banks of 10 on my Uno but I thought I would just ask you bright sparks on the forum before I go and buy a Mega :D