SonarPen is a $30 iPad stylus that connects to the headphone jack


When the Apple Pencil was released, I was briefly outraged by the fact that it wasn’t supported by older iPads, then sucked it up and bought an iPad Pro. Hong Kong-based company Greenbulb is setting out to minimize this dilemma by crowdfunding SonarPen, a $30 stylus that senses pressure via the headphone jack, so it works with any iPad released after 2011.

The SonarPen works by turning pressure information into sound waves sent to the iPad through the audio cable, which the iPad then interprets back into digital information. Because it uses an analog signal, Greenbulb claims it can deliver a wider range of pressure sensitivity than a standard Bluetooth stylus. And since there’s no Bluetooth to fiddle around with or batteries to charge,...

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via The Verge - Tech Posts "http://ift.tt/2C2Nzih"

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