![](https://www.g3gg0.de/wp-content/uploads/2023/06/grafik-300x246-optimized.png)
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/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/2021/08/grafik-14-300x232-optimized.png)
[FPV] Analysis of TBS Crossfire, reverse engineering the air link
I started flying FPV quads for a bit of freestyle flying about two years ago. Not very skilled, but also flying every now and then, so no real focused learning. Quickly I jumped onto the TBS Crossfire train and bought a TBS Tango 2 and...
![](https://www.g3gg0.de/wp-content/uploads/2021/08/grafik-8-300x174-optimized.png)
[FPV] Eachine EV800 mods
I own FPV goggles from Eachine and have been very happy with them. Yes, you look like an idiot with a brick on your forehead, but the antennas make you look more like a Johnny 5 fan, which is cool again. At least was 3...
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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/2021/01/photo_2021-01-27_22-28-53-300x225-optimized.jpg)
[ATtiny85] A simple TBS Crossfire USB adapter
Some time ago I built an aliexpress-part-based FPV quad and started flying around. Well… A few days later I had to buy the same parts again. Due to winds I totally lost control and the drone went out of range just while I hit the...
![](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...
![](https://www.g3gg0.de/wp-content/uploads/2019/11/NO8A8379_corr-300x200-optimized.jpg)
[ESP32] LegoRemote – a BLE/WiFi remote control for motors using a Steam Controller
Many years ago when I was young, I always wanted to have technic bricks to build some cool stuff with it. Self driving tanks, rotating cannons and shooting smaller bricks around. But back then I had no technic. Well, not even bricks. Just a friend...