The widely used Arduino IDE offers many easy-to-use functions, one of them is void digitalWrite(uint8_t pin, uint8_t val) . It sets one of the microcontroller’s pins to either high or low and serves well in many cases. However, it has a really poor performance, i.e. execution time. This post analyses both, speed and interior of the digitalWrite function, and proposes alternative, high performance solutions for setting output pins. Continue reading Port Manipulation and Arduino’s digitalWrite Performance
Today, 14. Dec 2016, I got the chance to try the new Microsoft HoloLens. This article explains briefly what that is and which impression I got.
The Microsoft HoloLens is a pair of augmented reality goggles. Opposed to virtual reality headsets you can still see your surroundings when wearing the HoloLens. What’s exciting about it? A transparent screen inside the headset adds 3D elements to you view. Pretty much as shown in Microsoft’s commercials. Continue reading Microsoft HoloLens: First Impression
This post explains the technical background of the security camera system, shown in the following movie. The post will answer the questions: How to detect a thief, how to take a photo, how to get notifications on your phone, and whether the system would work in reality. Continue reading Smart Home Security Camera
Since the publisher Europa uploads new Die drei ??? episodes on Spotifyquite frequently, I have been wanting to get an update every time they upload something new. For me the most convenient way to be notified is to get a message on my smartphone. The free messenger Telegram is predestinated for that task because of its open API and bot capabilities. Continue reading Die drei ??? Telegram Bot
For me the solution for productive Node.js development on Mac, with code execution on a Raspberry Pi was usage of Samba. After following the steps you will be able to develop Node.js applications right on your Mac, execute them on your Raspberry Pi (just by pressing cmd+S) and see the console output and errors on your Mac, without much hassle. This tutorial covers the entire setup. Continue reading Node.js: Develop on Mac, Run on Raspberry Pi