Matjaz

[Matjaz @S59MZ]

What if UAV swarms could navigate without GPS or RF? Introducing LunaSonar: acoustic spread-spectrum PNTC for GNSS-denied missions.

https://t.co/ufcO3hI8MQ

#LunaSonar #UAV #DroneSwarm #GNSS #PNT #Aerospace #DefenseTech #AutonomousSystems #CreateTheFuture

[Matjaz @S59MZ]

Solar eclipse from the Orion spacecraft

[Scott Tilley 🇺🇦 🇨🇦 @coastal8049]

So what’s going on here with respect to Artemis II?

The mission is flying a northern hemisphere adverse trajectory. But as you can see from these early models it’s very dynamic.

DSN activity schedule vs trajectory.

[Matjaz @S59MZ]

@luigifcruz LDPC

[Matjaz @S59MZ]

@dgo42 @MacroWorld21 This ring is a Rat-Race Mixer. Its circumference is exactly 1.5 lambda (6 * 1/4 lambda) at working frequency.

[Matjaz @S59MZ]

@MacroWorld21 @dimka_rs The component inside a circle (rat-race coupler) contains 2 mixer diodes. Triangle inside represents RF ground. On the right, there’s a local oscillator with a comb filter. The left tap on circle with another filter is probably an antenna port.

[Andy @KB7ZUT]

Favorite circuit of the day! Automatic Gain Control (AGC) for my homebrew SSB transceiver by Wes Hayward, W7ZOI, and Jeff Damm, WA7MLH. If you want to keep your ears from being smoked by a powerful station on your scratch built receiver, you need this circuit. #hamradio

[Matjaz @S59MZ]

@ElecNotes You missed the point of this circuit completely! The crucial part are R1 and R2 that divide the voltage drop across the R3: less, when the load is in short-circuit and more, when it is not. In short-circuited load, the max current must be more limited, than in normal operations.

[Matjaz @S59MZ]

https://t.co/9lUBO8rH0y

[Matjaz @S59MZ]

🚨 New Project on @Hacksterio!

🐾 WildSight AI: An edge-powered system that detects wildlife & humans in real time using the AMD Kria KR260 — and alerts rangers of potential conflicts.
👉 Runs MegaDetector v5 fully on-device with Vitis AI 3.5.

https://t.co/T2fLyUWcsP

#AI #Edge

[Matjaz @S59MZ]

@TivadarDanka Great! Now, you can continue with the e powered by i*pi. This is a very important concept in the theory of signals.

[Matjaz @S59MZ]

@K3TripleR I have one too. Great antenna even for indoor use! I noticed that original teflon screws on the capacitor cannot be replaced by nylon screws. They become warm after few minutes and detunes the loop. Overall, I’m very satisfied with this antenna.

[Matjaz @S59MZ]

🚀 Just published a full AMD Kria dev journey!
From PetaLinux setup in Docker to fully automated Ubuntu SD card image builds.
All scripts, docs & workflow on GitHub + Hackster guide 👇
🔧📦🧠
👉 https://t.co/6kfsJFCGPu
#Kria #ZynqMP #FPGA #Linux #EdgeAI #HacksterIO

[Matjaz @S59MZ]

Just published my Retro Circuit & Power Tester! A vintage-style AC tester with a built-in safety bulb, analog meters, and triac regulator. Perfect for safely checking motors, appliances & DIY circuits.

https://t.co/qb7k9R8gnu

#DIY #Electronics #RetroTech #HacksterIO

[Matjaz @S59MZ]

Just built a #RaspberryPi to #PMOD adapter board — super handy for kernel driver development and debugging!

Open Hardware available here:
https://t.co/MEWzYKbjBq

[Matjaz @S59MZ]

@MehdiHacks Here’s the whole step by step project and tutorial:

https://t.co/3kJCjnEUDi

[Matjaz @S59MZ]

@MacroWorld21 The 2 thick circles are probably rat-race mixers and the black component on circle is a pair of diodes for mixing the input signal that coming from comb filter with the LO signal. LO is implemented with dielectric resonator (DRO). It goes through Wilkinson splitter (thin circle).

[Eric Fortis @efortis]

@mathladyhazel I managed to graduate from computer engineering without understanding it. I wish I had this 3Blue1Brown video back then
https://t.co/zryiIeTTSE

[Math Lady Hazel 🇦🇷 @mathladyhazel]

The Fourier Transform, explained in one sentence by Stuart Riffle. [https://t.co/qxTOx44EfS]

[Matjaz @S59MZ]

@SP6GSA Very loooong buterfly capacitor or maybe two shorter? Two coupled magnetic antenna loops?