STEM Windmill Kit Development

I'm looking for an experienced engineer to create a small windmill kit for STEM projects aimed at ages 8-16. This kit should be designed for hands-on building experience and made primarily from plastic for safety and durability.

Key Features:
- A 12V windmill with a controller
- Connection for a 12V plug
- Voltage interpolation capability
- Wind speed measurement compatibility with something like an ADS1115 to connect over I2C/SDA

The kit should also include:
- A temperature sensor
- A humidity sensor
- A brightness sensor
- A wind speed sensor

Ideal Skills:
- Experience in designing educational kits
- Proficiency in engineering for STEM
- Knowledge in creating kits for hands-on building experiences
- Experience with incorporating sensors into kits
- Understanding of voltage interpolation and I2C/SDA connectivity

Please note, the primary focus of this kit is to provide a hands-on building experience. The use of plastic for the components is preferred to ensure safety and durability.