sorry if my question was not clear. I know how to control 3 seven segment displays with 3 "TPIC6B595" chips chained together to display numbers. as show on the attached image in the first step number one is displayed in top left section. then it need to power off. then number two is displayed in center section and so on the sequence continues.
what I want to know is the best method to connect all these seven segment displays (3 for each section) and control them.
- Should I connect all 27 seven segments with TPIC6B595 chips chain together and give correct bit input to light the required number in required section an making all other seven segments zero.
should I wire 3 "TPIC6B595" chips for each section separately. then taking another input from arduino and switching the 3 wires going from arduino to the 3 "TPIC6B595" chips for the required section (location on the 9 section grid). using a switching method like relays. - should I wire 3 "TPIC6B595" chips for each section separately and wire 3 controlling wires separately for each sections. so 27 wires from the arduino to control 3 sets of "TPIC6B595" chips in the 9 section grid separately. can the arduno send separate bite outputs using separate wires at the same time
Or any other better method for the application
