Our blog focuses on sharing our experience and knowledge across a wide range of technologies and industries including hardware and software design, audio, video, internet of things, mobile application and signal processing technologies.
Using Dbus in Embedded Linux
Software Development
By Dan Christian
Do you need dbus?
There are command line programs for most system management functions. However, these traditional interfaces now talk dbus to get the job done. For example, the shutdown command actually uses dbus to tell … Details
RAII in C
Software Development
By Joe Linhoff
In my last post, I talked about resource management, and how RAII, Resource Acquisition is Initialization, is important in C++ because of the guarantees it provides. In this post, I’ll show how we can make the same guarantees in C. In C++, RAII provides a solution to resource management and the issues arising with exceptions…. View ArticleDetails
Banksy Had Inside Help
Connected Devices and IoT
By Howdy Pierce
Today’s discussion at Cardinal Peak involved Banksy’s latest stunt. In case you missed the news, a print of one of Banksy’s most famous street murals, “Girl With Balloon,” appeared to destroy itself only seconds after it was auctioned by Sotheby’s for a record sum of $1.4M. Shortly after the destruction, Banksy posted an Instagram video… View ArticleDetails
RAII Introduction
Software Development
By Joe Linhoff
RAII, or Resource Acquisition is Initialization, is a programming idiom that originally came out of the C++ community. However, it’s a powerful approach that can be used in many languages, including old-fashioned C. In this blog post, I’ll introduce the RAII concept and examine the guarantees it provides in C++. A subsequent post will demonstrate… View ArticleDetails
IoT Temperature Monitoring
Connected Devices and IoT
By Howdy Pierce
Cardinal Peak just completed the initial phase of an interesting IoT project that was slightly afield for us. Six months ago, a volunteer for the Emergency Family Assistance Association, a food bank in Boulder, asked me to develop a solution to track temperatures inside freezers and refrigerators. Embarrassingly, we haven’t done much pro bono work… View ArticleDetails
