Serving Count Module proposal for coffee machine

I'm in need of a proficient individual to craft a feasible solution and propose a prototype design for a module that will count the servings of a coffee machine.

Key Responsibilities:
- Conduct a thorough feasibility study to identify possible solutions for serving counting.
- Design a prototype for the serving counting module.
- Ensure the module is robust enough to handle the daily operational demands of a coffee machine.

Requirements:
- The main purpose of this module is to count servings, not to measure ingredients or control the brewing process.
- I'm looking for a solution that doesn't involve the use of external sensors, but rather a self-contained system.
- The module should communicate a timestamp + machine-id to a cloud system.

Ideal Skills and Experience:
- Experience in product design, particularly for coffee machines or similar appliances.
- Knowledge of different counting mechanisms and the ability to apply them practically.
- A creative mindset for proposing innovative solutions.

Please provide any relevant experience or ideas you have in your bid.