CH9102 Serial-To-USB Driver for Mac OS X

Recently more and more ESP32 hardware is appearing with the WCH CH9102 Serial-To-USB chip. I assume lower costs and higher availability are the reason for this. Lower costs compared to FTDI chips, to the Silicon Labs CP2102 or CP2104. But when I recently started working …

Read More

Alexa-Home, Node-Red and Docker

How do you add new virtual devices/commands in Node-Red so that Alexa can control them? There are great Node-Red extensions but things get more complicated if Node-Red is running in a docker container. In this blog post I share my take-aways from setting this up.

Squix: The Exciting Next Step!

In the last few years has grown from a personal idea dumping ground to a well visited page around maker projects. Two years ago I started looking for a way to make it easier for you to rebuild my projects. The first step was to provide links …

Read More

Fun Projects: DIY Oscilloscope

If you are looking for a fun project for your next weekend then the DSO150 Oscilloscope from JYE Tech might be the right thing for you. It is a kit which requires basic soldering skills, 1-2 hours of work and some concentration.

Finally: Support Forum

It was about time that I would offer you a better way to ask me questions than post comments and a contact form on the About page. Thanks to the nude of one reader I finally picked a forum software and set it up. 

IoTCon in Munich: Impressions from Day 2

In my last post I shared my impressions from the first day of the Internet-of-Things conference in Munich. Here is the write-up of day 2 which covers a low-cost smart home, Docker for Internet-of-Things running on ARM (Raspberry Pi’s), introduction to Web Bluetooth and a comparison …

Read More