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Emporia Vue 2 Custom Firmware
About a year ago, I found myself on the hunt for energy meters compatible with my power distribution box and stumbled upon Vue 2 by Emporia Energy. This device, with its support for three primary phases and 16 individual subnets, intrigued me. One of its...
![](https://www.g3gg0.de/wp-content/uploads/2023/04/grafik-300x234-optimized.png)
ESP32 / Kenwood XS8/SL16 Remote
This is just a quite short and incomplete article, compared to the previous ones. On a rainy sunday afternoon I wondered if our audio receiver, a Kenwood KRF-V 7060, has some serial protocol which allows me to remote control the receiver via home assistant. I...
![](https://www.g3gg0.de/wp-content/uploads/2022/07/20220707_011037-300x225-optimized.jpg)
An IoT Geiger Counter
Building an ESP32 based geiger counter, for reporting radiation levels to a time series database, visualizing with grafana
![](https://www.g3gg0.de/wp-content/uploads/2022/05/grafik-11-300x200-optimized.png)
Fuel Pressure Gauge for an Oldtimer
Some day a close relative contacted me and told me about a problem with his Porsche 911F Targa, built in 1971 and laboriously restored over the course of a few years. It is a great car, but when driving longer distances, the engine sometimes suddenly...
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[ESP32] A tiny WiFi/BT to (true) RS232 adapter
Ages ago I received a defective Keithley SourceMeter 2400 that I could easily repair. I also have an old AOR A5000. Both are remotely controllable using their RS232 interface. But nowadays long RS232 cables aren’t quite state of the art and placing USB cables through...
![](https://www.g3gg0.de/wp-content/uploads/2020/07/20200702_233015-300x225-optimized.jpg)
[MES-WiFi] Bringing a Windhager PMX150 pellet heater online
Since we own our house with a pellet heating system, it does its job day for day and delivers the warmth you’d expect from it. It rarely fails. Well, rarely. Except when I forget to refill the pellet container which has to be done every...