Protocol Conversion Interface Development

I need an experienced hardware/software developer to design and implement an interface that converts the ID003 protocol from bill validators into CCNET protocol.

Key Requirements:
- Strong background in protocol development and embedded systems
- Use of single-board computer (e.g., Raspberry Pi) as the hardware platform
- Ability to understand specifications of ID003 and CCNET protocols
- Deliver a robust and efficient solution

Ideal Skills:
- Hardware integration
- Protocol conversion
- Embedded systems knowledge
- Experience with Raspberry Pi