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.
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.
Do you know this problem: you want your dumb home appliances to let you know once they change a state. You want to know once the dish washer finishes the cleaning cycle or when your electric oven has reached the target temperature to put the …
For a long while now I was always looking for a development board that would help me to create battery-driven IoT projects. Since I couldn’t find it we decided to design one and sell it with ThingPulse. It only consumes between 25-35uA and accepts a …
Until recently I believed that having PCBs assembled by a professional service is either too costly for small batches or not possible at all. That was until I realized that some PCB manufacturers offer an additional assembly service (PCBA) and that their minimum order quantity …
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 …
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 …
The LinkIt 7697 is a development board equipped with the MT7697 from MediaTek and at first glance it looks a bit like a twin of the ESP32. It comes with Bluetooth Low Energy, has a WiFi module and plenty of RAM (compared to the ESP8266) …
In the last couple of months I had the chance to play around with LoRaWAN. In case you have never heard of LoRaWAN, it is THE radio communication protocol for the Internet of Things (IoT). It is long range (thus LoRa) and consumes only little …
Usually you read about electronic components and how to use them on this blog. Often they are related to Internet-Of-Things (IoT). This post on the other hand is about an end user product. But you could also call it an IoT component. It is about …
In this post I will guide you through the jungle of available modules based on the ESP8266. This is not a complete list of available modules but a selection of the ones I could test and review. If you think that I have been missing …
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Daniel Eichhorn