GSM Analyzer – Support for Aaronia RTSA / Spectran V6
Before I go into GSM Analyzer details a few words regarding the hardware. I was using various SDR devices in the last years. Started using specialized hardware named USB-RX a friend designed and also HiQ-SDR, RTL dongles etc. The most mature one was the USB-RX...
An Open Source LIBS software written in C#
I made a custom LIBS software for analyzing spectral measurements. But first of all – what is LIBS? LIBS stands for Laser-Induced Breakdown Spectroscopy, which is in simple words: smashing a beam of photons into some material, leaving a crater and a glowing dust cloud...
[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...
[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...
[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...
[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...
[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...
[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...
[3D-Print] Geeetech prusa i3 – improvements
Last year i bought a cheap chinese prusa i3 clone for €270 including VAT and shipping which performs very good overall. After assembling it – which took me about 8 hours – its print results was.. well.. quite okay. As expected, because reading forums and...
[3D-Print] Custom geeetech i3 printhead
[Update: 04/2018] Summer ’16 I bought a prusa i3 clone from geeetech, a cheap chinese printer manufacturer. With 270€, including VAT and shipping, the DIY-kit is quite cheap and 8 hours later i had a prusa i3 clone that prints “quite okay”. [more about preventing...