Solar Water Heater Shade Automation

I'm a beginner trying to automate a roller shade on my solar water heater to prevent overheating. The project involves installing a temperature sensor on the water line/tank and using stepper motors on a drive shaft to control the shade based on the water temperature.

I need help with:
- Both hardware and software integration
- Recommendations for suitable temperature sensors and stepper motors

Skills and experience required:
- Expertise in hardware/software integration
- Knowledgeable and able to recommend suitable electrical components
- Ability to explain complex concepts in a simple way