A common PC sound card can be used as a sine/square/triangle function generator, but the output suffers from limited rail-to-rail swing, plus its zero-centered has no dc offset. This circuit overcomes these constraints by using the second channel of the sound card to develop a PWM waveform that is filtered and then added to provide offset.
According to NXP, Version 2 of LPCXpresso development board now fully supports the ARM mbed platform, which provides free software libraries, hardware designs, and online tools that help accelerate prototyping of ARM-based products....More
By leveraging unique, proven algorithms, Imagination Technologies says its HelloSoft WebTRC engine enhances voice and video quality for conferencing services when using mobile and tablet platforms....More
High-density interconnect (HDI) technology allows PCB designers to increase the routing density, reduce the layer count, and improve the thermal and electrical characteristics of their board designs. Advanced via technology allows two conventional eight-layer cards to be combined into one 18-layer HDI card creating a product that is 50% smaller....More
Rambus has developed a diffraction-based lensless imaging system that could be used in tiny sensors for the "Internet of Things". Extremely small, thin and solid state, their Lensless Smart Sensor shifts the optics to occur through computational processing rather than relying on a lens and housing, dramatically reducing size and cost of the overall system....More
With embedded devices so prevelant today, security is paramount. Intrusion detection for desktop systems tends to be more focused on viruses and malware, so how does intrusion detection for embedded systems differ? Alan Grau from Icon Labs discusses the differences with Electronic Design's Bill Wong....More