So I am making a combination garage door opener and the program was perfect, but I had it set up to use a 12 button keypad with 13pins (a common)
so clicking a button would make a 14m2 button high, nice and simple! But I can not find a 13pin keypad ANYWHERE at least nowhere where I don't have to pay 3x more than it costs in shipping. But I have found the 7pin hex keypads like this
https://www.sparkfun.com/products/8653
But how can I get the 14m2 to read connections between pins like this?
so clicking a button would make a 14m2 button high, nice and simple! But I can not find a 13pin keypad ANYWHERE at least nowhere where I don't have to pay 3x more than it costs in shipping. But I have found the 7pin hex keypads like this
https://www.sparkfun.com/products/8653
But how can I get the 14m2 to read connections between pins like this?