Android POS App for Charging Kiosk

I need a point of sale Android app to control a USB charging port for a self-service kiosk. Users can charge their mobile devices by tapping a debit card or entering a code.

Key Features:
- Admin Panel:
- Set charging time
- Generate charging codes
- View transaction history
- User Initiation:
- Both debit card tap and charging code entry
- Device Compatibility:
- Charge both mobile phones and tablets
- Charging stops after 60 seconds or admin-set time

Ideal Skills & Experience:
- Android app development
- Experience with payment integration
- Familiarity with admin panel design
- Background in working with USB power management systems

Please provide examples of similar work done and estimated timelines.