Getting image source signatures
Россиянин получил 16 лет колонии после пьяной дракиВ Подмосковье осудили мужчину за убийство двоих знакомых
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不妨畅想一下，也许未来某天，我们在太空中的工具和维修设备，都是由这一3D打印技术制造——而这一切的起点，或许正是那个从太空归来的金属构件。
The universal cover of a doughnut
The spinners are weighted knobs that you can spin freely in either direction. Inside, a rotary encoder produces two square wave signals (A and B) that are 90 degrees out of phase. By counting the edges and checking which signal leads, you can determine both the speed and direction of rotation. We sample these at 1kHz in firmware and report the accumulated counts as an axis value in the HID reports.