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All about electronics and circuit design

Friday Fun: Dihydrogen monoxide hoax

https://en.wikipedia.org/wiki/Dihydrogen_monoxide_hoax The dihydrogen monoxide hoax involves calling water by the unfamiliar chemical name “dihydrogen monoxide” (DHMO), and listing some of water’s effects in a particularly alarming manner, such as accelerating corrosion and causing suffocation. The hoax often calls for dihydrogen monoxide to be banned, regulated, and labeled as dangerous.

Cheap poor HDMI to USB converter

Here is a story of one cheap HDMI digitizing device. I have wanted to connect devices with HDMI output Open Broadcast Studio video mixer/streaming software running on PC. Usually HDMI to USB adapters are expensive boxes (around $100 or more). But the I saw this really cheap (€16,15 / US$ 18.99) Mini Portable HD USB

Remote Powering over communications cabling (part 3)

Remote feeding is a technology which enables operators to power several remote sites from a central location.  Remote powering implies that the power equipment is not local but some distance away. Remote means that the powering and powered equipment are in separate buildings or at different external locations inside same building.It can be used as

4 tools for building embedded Linux systems

https://opensource.com/article/18/6/embedded-linux-build-tools Explore Yocto, Buildroot, OpenWRT, and adapted desktop distros to determine the right option for your project. The development environment in embedded systems programming is usually very different from the testing and production environments. Typically, the build output will consist of an entire software image for the target device, including the kernel, device drivers, libraries,

10 Hello World programs for your Raspberry Pi

https://opensource.com/article/18/3/10-hello-world-programs-your-raspberry-pi “Hello world” is the beginning of everything when it comes to computing and programming. Having a nice simple readable “hello world” program makes for a good intro for beginners learning your language, library, framework, or tool. This article shows ten different “hello world” programs that can be run on the Raspberry Pi using its

Remote Powering over communications cabling (part 2)

Remote powering implies that the power equipment is not local but some distance away. It is an alternative to commercial power, which can be hard to get and/or expensive. Remote means that the powering and powered equipment are in separate buildings or at different external locations inside same building. Line powering is a way to

Save The Link

https://savethelink.org/ Linking is the foundation of the Web. Links are what empower us to access the greatest collection of human knowledge. Outdated media publishers are successfully lobbying all over the world to restrict linking on the Internet. Tell decision-makers that you oppose regulations that aim to censor links. One service that you can use for

Remote Powering over communications cabling (part 1)

Remote powering implies that the power equipment is not local but some distance away. It is an alternative to commercial power, which can be hard to get and/or expensive. Remote means that the powering and powered equipment are in separate buildings or at different external locations inside same building. Line powering is a way to

Using MQTT to send and receive data for your next project | Opensource.com

https://opensource.com/article/18/6/mqtt This article introduces you to MQTT protocol widely used in IoT. MQTT is a publish/subscribe (pubsub) wire protocol designed with small devices in mind. Pubsub systems work like a message bus. You send a message to a topic, and any software with a subscription for that topic gets a copy of your message. As