悬浮乒乓球 - 第一步

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I have always found magic tricks to be some of the coolest things to witness, whether it’s the straight-up CGI in the Harry Potter movies or some of the more mind-boggling tricks done by David Copperfield at one of his shows (they’re super cool and worth it in my opinion if you are debating on seeing one). However, hand-eye-coordination has never been one of my strong suits, so I eventually resigned to the fact that magic as a hobby was perhaps not for me.

但是，鉴于我最近与电子产品合作，一个漫长的休眠梦再次开始闪烁。

当爱达荷大学名誉大学教授理查德·沃尔（Richard Wall）带着一个小型项目来到我身边时，他开始了一个小项目，该项目正在对带有小型DC风扇的乒乓球进行某种比例的高度控制。在通过LED的亮度进行了一些比例的模拟控制之后，我意识到“这几乎是同一回事”，我接受了从事该项目的提议。

您可能已经猜到，这是一个不正确的评估。设置由一些柔性塑料组成，这些塑料被贴在一个小风扇周围，因此有很多空气损失。Additionally I ended up cutting part of the tube down in an attempt to have the ball float higher in the tube, but messed up the structural integrity to the point that there wasn’t enough air pressure to float the ball at all… however, that’s beside the point.

显然，在我的尽头需要做更多的工作，以使乒乓球悬浮。What I’ll try next (and detail in part 2 of this blog series) is using the PmodMAXSONAR as a way to receive a desired height input, and then using the PmodOC1 or PmodOD1 as my transistor to turn the fan on and off at a rapid enough rate to get a pseudo proportional fan.