Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Worked easily with a Raspberry Pi 4. Used a simple capacitance timing circuit for resistance measurement. The resistance value is pretty unstable and bounces around too much for my purposes (need 1-2 degree accuracy).