Recently , various Tabletop Tang重 b童 e User 【 nterface ( TTUI ) has been develQped . Howeve ら most of the TTUIs require special table which includes cameras , and sensors such as touch paneL We developed new TTU 置which does not require speGial table is proposed 」 n this paper , we propose new input mechanism , feed back mechanism , and apPhcationes fbr our the TTUL
SUMMARYWe present a new simple Internet of Things (IoT) device that we call "Smart Bottle Cap", which enables a standard bottle to become a user-controllable liquid pouring system. It consists of a mini vacuum pump to start the liquid flowing, a microcontroller to control the liquid flow, a BLE module to connect it to a smartphone, an accelerometer to detect the tilt angle of the bottle, an LED for drawing the attention of users, and a 3.7 V LiPo battery. The device's novel point is that a flow control mechanism built into a standard bottle cap makes the system suitable for general use and enables it to be easily extended. key words: Internet of Things, bottle cap, liquid flow
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