Multi-infusion Timing Controller with User-Friendly Interface for Loose Leaf Tea Brewing Service

This study proposes a multi-infusion timing controller with user friendly interface for loose leaf tea brewing service. The proposed timing controller uses AT89S51 programmable microcontroller to detect the input signals and trigger the corresponding outputs. The input signals come from a power switch for turning the controller on/off, three push buttons for setting the brewing time, and two other push buttons for controlling initial/extra brewing time setting and start/stop timing. The corresponding outputs include a power LED for indicating whether the controller is working or nonworking, a buzzer for reminding the completion of timing, and three 7 segments for displaying the remaining time. Conclusively, the proposed microcontroller-based tea brewing service device can remind users remembering pour the water out timely, allow users to adjust brewing time based on personal favorite tastes, and allow users to make multi-rounds of tea infusion time for each individual setting. Therefore, the tea quality can be self-guaranteed.