Make the perfect cup of tea with Arduino


Arduino will keep you from over-steeping your tea.


While coffee has been the fuel of engineers for years, others like Brian McEvoy sometimes prefer tea for their daily jolt in the morning and afternoon pick-me-up. In order to receive the maximum amount of caffeine, however, mastering the brewing time is imperative. Over-steeping tea sometimes can lead to a bitter taste and a reduction in caffeine levels, and as someone that gets easily distracted, this tends to happen to the Maker more times than not. In order to prevent this from occurring on a regular basis, as any DIYer would do, he decided to automate his tea cup to perfect every brew.

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While tea timers are nothing out of the ordinary, McEvoy was determined to “(over)engineer something” using inexpensive hobby-grade electronics, and more importantly, something that would differentiate his project from countless others on sites like Instructables. This included incorporating a text display and having the cup (which as any Star Wars fan would agree, his choice was awesome) clip onto the machine.

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In order to do this, the Maker devised a 3D-printed, tea-bagging mechanism that employs a 9g servo motor to control the amount of time that the leaves attached to the arm spends dipping into the mug. Meanwhile, another 3D-printed enclosure houses an Arduino Mini (ATmega328), a potentiometer to properly set the brewing process, an LCD screen to reveal the time and a start button to, well, get things going. A USB charging cable with its wired ends cut was soldered to the Arduino for power supply.

Sound like a simple device to solve your troubles in the morning? You can check out his detailed blog posts and follow along with his step-by-step tutorial on Instructables.

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