want to which Circuit to pick

I know my way around FPGA and now I'm trying to learn to software and system. I was looking at buying chip or circuit from Arduino but not which one to pick. I want a circuit or interface board which take input and output. Same as FPGA, I can upload programs like State machine and other on the circuit and it will work according to the input and produce an output or display.

Please let me

Thanks y'all

Any Arduino will do what you want. The good one to start with is the Uno.

I’m trying to run state machine which will control a water pump which will work on the water level in a tank. will UNO be able to do that?

Any Arduino can do that, their is nothing special about a state machine.

Thank you for the information and anything know which language does Arduino work with?

It uses C / C++


Thank you