Color apples Continuation

Continuation of previous project called "color apples" OK, if I understand correctly, you will provide: (1) tablet - master that you input a value and sends to slave (cellphone) as described in original post (2) cellphone - slave that receives information and then is able to write a response back that updates the master as described in original post (3) master knows next phone in queue and user is able to send updated value to them (4) connection type: wifi hotspot (5) commented code so I can follow the code from beginning to end (this is very important) (6) layout: I'd like a 4x4 grid with the first column being a color, the second column being the number input, third column color and fourth column being a number input... so there would be 4 rows of different colors and the connected devices would know what textboxes have been updated