Touch Screen display for my vending coffee machine

Job ID: 33229186

Budget: $250 – $750 USD

Hi, i have vending coffee machine it have a button for drink options. i want add Touch Screen display. but i don't know for what options need do it,

need the signal from the touch screen to close the button, I do not want to go so far into the logic of the machine, just need to replace the physical button on the touch screen

becuse if i use PLC HMI interface need write program for PLC
otherweys we can use Android base sustem all in one
or raspberry pi + touch screen sensor + display


Need someone who can offer me the best option for this project,
I need to choose the hardware and the software for it.
I can do the graphic design in my side.

hardware i want buy from China (Alibaba or something else) need your recommendation which soft you use and which on which hardware need to complete this project.
graphic design i can do in my side
Related categories: Electronics Microcontroller Arduino Raspberry Pi PLC