Build Your Own Freescale i.MX6 Quad Laptop

Andrew Huang (“Bunny”) and others have been working on an open source laptop based on Freescale i.MX6 Quad processor since June, and they’ve recently got the motherboard. Beside featuring a powerful quad core ARM processor, the design files are also provided, so if you have the right skills and resources you can build it yourself. Meet Novena, the Open Source …

Build Your Own Freescale i.MX6 Quad Laptop

Andrew Huang (“Bunny”) and others have been working on an open source laptop based on Freescale i.MX6 Quad processor since June, and they’ve recently got the motherboard. Beside featuring a powerful quad core ARM processor, the design files are also provided, so if you have the right skills and resources you can build it yourself. Meet Novena, the Open Source …

How to use hover in a user interface

By: Christi Juchmes, product marketing engineer, Cypress Semiconductor Corp. Hover sensing combines self and mutual capacitive sensing to create a mouseover-like functionality in a handheld device, including magnification and simplified text selection. Here are some of the capabilities and applications of hover technology in handheld devices. Hover sensing is a rapidly emerging technology for handheld device user interfaces (UIs), with …

How to use hover in a user interface

By: Christi Juchmes, product marketing engineer, Cypress Semiconductor Corp Hover sensing combines self and mutual capacitive sensing to create a mouseover-like functionality in a handheld device, including magnification and simplified text selection. Here are some of the capabilities and applications of hover technology in handheld devices. Hover sensing is a rapidly emerging technology for handheld device user interfaces (UIs), with …

Understanding electromagnetic interference sources in touchscreens

Summary: Vadim Konradi of Silicon Labs reviews the various EMI problems associated with projected-capacitance touchscreens  in today’s portable devices. The author then outlines design and optimization techniques to deal with the interference coupling paths.  A projected-capacitance touchscreen is capable of precise touch location based on a light finger touch to the screen. It determines finger position by measuring miniscule changes …