Monitoring cesspool level using ESP32 and JSN-SR04T ultrasonic sensor

TL;DR This lengthy post is about designing and deploying my new ESP32 rust project (for the first time in my life) and all its struggles. It is using the ultrasonic sensor for liquid level monitoring. History (previous setup) Long story short my house still cannot …

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Gardena SILENO minimo 250: story about firmware upgrade using Linux

Introduction I own the Gardena SILENO minimo 250m2 robotic lawnmower: It’s working very well for about two years so far. I am really happy that I don’t need to use petrol lawn mower anymore, and I just forgot to think about this task, which is really cool! …

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Huawei SUN2000: why using a USB dongle for monitoring is not a good idea

Intro I want to share what I found out regarding monitoring Huawei SUN2000 inverter using a Modbus/TCP method during my half-year journey with this inverter. Let’s start with some basics first:The inverter has internal WiFi access point built-in on its mother board. The main purpose …

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