Chris.Dev.Blog

With the KLF200, Velux offers an ethernet-based device to control shutters and other wireless components. But their implementation is a disaster for DIY-homes. With an ESP8266 I fixed this mess...

In this final episode I'll show how I implemented data-exchange with my card using IRQ and the development of some ShellExtensions and ControlPanel-applets for Windows98.

It's may and the pool-season has started! So we'll have a look on how we find the best time to jump into water using an ESP8266, MQTT and NodeRED...

In part 2 of this series I will show my progress on developing a DIY PCI Card using Alteras FLEX10K FPGAs.

Motorcontrollers are everywhere, cheap and reliable, but building a field-oriented control (FOC) from scratch to understand the details is a nice challenge. So I accepted the challenge and implemented a full-featured FOC within an FPGA.

Spare parts for Viessmann-controls are quite expensive. As the control of our oil-heater has broken down, I searched for a replacement but in the end I developed a full replacement with MQTT and connection to NodeRED.

Disposing of defective appliances is common practice and repairing them is often uneconomical. However, there are often still very useful components in such devices. I took a closer look at a Thermomix and found a nice motor control unit.

In the last blog-post I discussed developing retro-apps for Windows that can be run under OS/2 using the WLO toolset from Microsoft. But what about native coding under OS/2 directly?

Retrocomputing with real hardware is a very nice way to understand how modern computers have learned to run and talk. I developed some GUI for OS/2 Warp 3.0 and Windows 3.11 to control some of my microcontroller-projects.

Ethernet on Microcontrollers is available without problems: using FreeRTOS or the Arduino-libs is always a good start. But for FPGAs? I was shocked how expensive Ethernet is for FPGAs - but I found a good solution...