Measuring pressure with compensated silicon sensors and precision delta-sigma ADCs

Reasonably priced sensors are now available in a variety of packages, making them attractive for a wide variety of embedded system precision sensing applications, including liquid level measurements. This article describes differences among modern pressure sensors and emphasizes the benefits of recent advances in microelectro mechanical (MEMS) temperature-compensated, silicon pressure sensors. The article then describes a cost-effective, low-power, liquid …

Thread synchronization techniques for better multicore system power/performance tradeoffs

It’s a common refrain heard among embedded software design teams everywhere, when the team manager declares, “We need better system power management from both the hardware and software, but we also need to optimize the design for increased functionality and performance.” So, how can a software designer hope to accomplish such a feat when in order to maximize one …

Minimize leakage power in embedded SoC designs with Multi-Vt cells

In this Product How-To article, Mark Lee of Cypress uses the company’s CY8C21434 PSoC to explain the methods by which to integrate capacitive sensors into consumer white goods where the ability to operate reliably in wet environments is important. Capacitive touch sensors are commonly found today in MP3 players and mobile phones. As this sensor technology expands into other …

Balancing How Firmware Waits on Hardware

A common question engineers often wrestle with is how long hardware will take to do a requested task so firmware can take the next step. Engineers implement different designs (both in hardware and firmware) depending on the length of time, and these designs have varying impacts on hardware and firmware complexity and overall system performance. Understanding their ramifications during the …