Current smart pens on the market are expensive. Some only work with the latest iPad Pro models. This bothered the GreenBulb, the creator of the SonarPen, for a very long time, so they created a smart pen that's more financially accessible for everyone.
Images source: Kickstarter
Many smart pens are powered by a built-in battery. Within a year or two, the smart pens will stop working since the battery can no longer hold its charge. This creates more unnecessary e-waste.
Now there is an invention of the SonarPen, a battery-less and pressure sensitive smart pen that turns all the iPads into a professional creative canvas.
It's a battery-free smart pen that's packed with smart features. Just connect it to the 3.5mm audio port on the iPad. It is available with 2 standard cable colors; black and white.
SonarPen works with iPhone that only has a lightning port (iPhone 7, 7+, 8, 8+, X), just connect the two with the conversion cable that comes with the phone.
The pen is one of the first tools we learn to use as a child, so creating with a pen is second nature to us.
The SonarPen has the same features as a smart pen, including palm rejection, shortcut button and pressure sensitivity. Our innovative design lowers the amount of materials used.
The magnetic pen holder attached to the back of your iPad with a piece of 3M double side tape. Installation is super easy and it doesn't leave any dirt on the iPad when you remove it.
Zen Brush 2, the popular water color painting app, is the first official app that supports the SonarPen.
SonarPen is the first analog smart pen for the iPad. Its supported pressure level is not predefined because it doesn’t contain an analog to digital converter that governs the pressure levels. SonarPen uses the iPad built-in ADC to do the conversion.
Generally speaking, ADC in the iPad has higher resolution than the ones found in smart pens, which give more pressure levels.
Although SonarPen detects more pressure levels, but we are not trying to play up the number game, so you don’t see we brag about it.
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