PCB Design for Automatic Soap Dispenser with Low Soap Level Detection

Hi, I need a schematic and PCB design for my college project, an Automatic Soap Dispenser with Low Soap Level Detection.

I am using:
- Arduino Nano V3.0 (ATmega328P)
- TTP223 capacitive touch sensor
- XKC-Y25-V non-contact liquid-level sensor
- Kamoer KPHM100-HB peristaltic pump — 12 V, 0.5 A
- LED for low-soap indication
- Pump driver circuit

Operation: When the TTP223 is touched, the Arduino Nano should activate the 12 V peristaltic pump for a programmed amount of time and then stop it. The XKC-Y25-V will be mounted outside the soap container at the low-level point. When the soap becomes low, the Arduino should turn on an LED.

The Arduino must not drive the pump directly. Please include a suitable transistor/MOSFET pump-driver circuit and flyback protection. The pump uses 12 V, while the Arduino Nano and sensors require their appropriate lower-voltage supply, so please include a proper power section and common ground.

Please provide:
- Complete circuit schematic
- PCB layout
- Component values and part numbers
- Clearly labelled connectors for TTP223, XKC-Y25-V, pump, LED and power
- Arduino Nano footprint/header connections
- Gerber files for PCB manufacturing
- BOM (Bill of Materials)
- Source/design files so I can open and explain the design

Please keep the circuit simple because this is a college project and I need to understand and explain how every part works.