I realised that the schematic i designed earlier was too basic and could be done better. So I have now added diodes (as i have to use a matrix design cuz it does the task by utilising only 6 pins of the controller). I have also added an oled display and a rotary encoder. I also thought of adding lights to make it cooler and think of controlling them using the rotary encoder. Also i had a pin left so i have provided headers for that extra pin , gnd, 3.3v, 5v, scl and sda(so if i want to add something in the future it will be much more accessible). Will once again check this circuit for any errors and assign footprints and then design the pcb . Currently thinking for some design ideas for the pcb rather than rectangular.