October 31, 2017
Review: Function generator “in the pocket”
At a price of less than 100 euros, a reasonably equipped smartphone seems to defeat all attempts are designing and building the above modules from scratch and building them into every new application you have in mind. Not surprisingly, a vast proportion of projects I get to see from engineers contributing to Elektor Magazine employ a smartphone, usually for its display functionality and/or its touch screen as part of a user interface (UI) through Bluetooth or WiFi. Knobs, dials, meters, sliders … why go through the trouble of drilling and soldering and even purchasing parts if you can have the entire UI on single device, in your hand, battery powered, wireless, and totally reconfigurable through software only?