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I mostly use EasyEDA for PCB design: it is easy to use and ordering assembled PCBs from JLCPCB couldn’t be easier (and cheaper) with any other EDA tool. But exporting your PCB design from EasyEDA as a 3D object is really faulty. Often we want …
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Logic Analyzers can be quite useful to test and analyze hardware. In this short video I explain how to use the cheap LHT00SU1 logic analyzer together with PulseView on Mac OS X to test a new ESP32 development board.
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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 …
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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.
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If you are lacking good documentation it can be very hard to get started with a new device. I just couldn’t find a comprehensive example project for how to connect TTGO-LoRA32 V1.0 with the V3 version of the Things Network. So I hope this post …
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The ESP32 platform offers a wide range of functionality almost out of the box. For instance you can turn a ESP32 with little effort into a Bluetooth Audio speaker. In this article I describing how I tapped into the digital data stream coming from a …
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Fritzing is a wonderful tool to document your electronic projects, if – and only if – the parts you use are available in the parts library. If you are designing parts yourself you can help the community by creating Fritzing parts for your designs.
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I love machines that help me to build my projects. I also love to hack devices to do more than they were built for. So you can imagine what a fun project it was for me to hack my desktop 3018 CNC mill into a …
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Recently I was asked: “What do you need a development board for?” For me the answer is very clear. I love short development cycles. It’s much faster to verify an idea on a bread board before you sit down and design a PCB. Designing a …
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My family and I live in an apartment building and the laundry machine and the tumble dryer are in the basement. In the past, it happened many times that I went down to take out the laundry just to realize that the machine was still …
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I’m constantly adding new features to my Tevo Tarantula printer. The latest addition is a bed leveling sensor.
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In the last few years blog.squix.org 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 …
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With the last production batch we secretly updated the ESP8266 WeatherStation Color Kit. First change is the increased size of the custom PCB, which now has the same size as the TFT board. We also added holes and two spacers and female headers so that …
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Hi Sergey, thank you so much much for agreeing to this interview! Can you tell us a bit about your role at Mongoose OS? I am a technical cofounder and CTO of a company behind Mongoose OS, and set the overall technical direction for the …
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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.
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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.
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In this post I will show you how to replace the batteries of an Anki Overdrive car either to increase the capacity or to fix a broken LiPo pack. But first a warning: this process will most likely void your warranty. Only do this if …
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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 …