While the “M” in MIDI stands for “musical”, it’s possible to use this standard for other things as well. [s-ol] has been working on a VJ setup (mixing video instead of music) using various ...

Experimenting with an HF oscillator, I needed to control the varactor diode voltage in precise increments over a 2V-10V range. A buffered potentiometer was the obvious choice, and connecting two pots ...

[Blake]’s interest in building keyboards happened naturally enough — he was looking for a new project to work on and fell into the treasure chest that is the mechanical keyboard community. It sounds ...

Tailored for battery operated apps, the AS5055 magnetic rotary encoder with automatic power-down and wake-up modes integrates four Hall sensor elements, a 12-bit angle encoder, smart power management ...

Microchip Technology has unveiled the maXTouch Knob on Display (KoD) controller as the first automotive-grade touchscreen controller family to natively support the detection and reporting of ...

Integrating touchscreen and rotary-knob control into a single IC simplifies combining these two different but complementary user-input devices. Touchscreens and touchpads haven’t totally taken over ...

I want to write about something a little different this time. I removed the mechanical scroll wheel rotary encoder from a discarded optical mouse and used it in a little project. I really liked the ...