This application was developed for home coffee roasters. It reads 3 7-segment displays using camera and plots graph of time-temperature development. The graph can be saved to your library which is stored on your SD card. You can add many details about origin of the coffee, roasting profile, temperatures and simple cupping results. Later you can view, compare and edit your records. You can also use saved roasting profiles as a template for next roasting. Currently only 3 digits are recognized. Faster and more precise recognition is in development, as well as many other features and settings. Please report any bug you encounter and feel free to write new feature suggestions.