Maxim

Набивая дома барахлом, Свой саквояж, Ты хотел за кордон? Слышь, гондон, бон вояж! youtu.be/FQqmkcEWHzU

ChaCha20 is a cryptography algorithm built for speed, security, and simplicity. Learn more in our article about why it should be in your arsenal: hackers-arise.com/intermediate-c… @three_cube @DI0256 @co11ateral

🇺🇸 AeroVironment (@aerovironment) today announced that the U.S. Army has awarded a prototype agreement for the Low-Altitude Stalking and Strike Ordnance (LASSO) program. Switchblade also known as "Lightweight Tank Destroyer" is AV's medium-range, man-portable, anti-armor loitering munition and is the first loitering munition purpose-built to operate within AV_Halo™, AV’s modular command-and-control ecosystem. "Switchblade 400 is the product of continuous feedback from the field and the soldiers who rely on our systems in real-world operations" - Brian Young, Senior Vice President of Loitering Munitions at AV. Learn more >> tinyurl.com/2dmj7xae

The #Taoglas PC303 FR4 PCB Combination #Antenna is a high-performance, rigid PCB antenna designed to cover #Cellular (600 MHz–8000 MHz), Wi-Fi (2.4 / 5.8 / 7.125 GHz), and GNSS (L1, B1I, G1, and L-Band) frequencies. rf-design.co.za/2026/05/05/tao…

Narrowband SIL and BiM radios deliver higher reliability and range than wideband modules. NRX2B, NTX2B, NiM2B, NiM2F, NRX1B, NTX1C, NiM1B and NiM1F provide programmable frequencies, strong RF performance and robustness in harsh environments. radiometrix.com/family/narrowb… #Narrowband #RFModules #Telemetry #Wireless #VHF #UHF

VICTS antennas employ layers of lightweight platters that rotate a center axis to steer the beam & control polarization. Thanks @micjag111,maybe we had already talked about it,the name is not new.. They could be rotating Luneburg & Fresnel lenses 😎 x.com/search?q=from%…

En lugar de ver una hora de Netflix, mira esta conferencia de 2 horas de Stanford que te enseñará más sobre cómo se construyen los LLMs como ChatGPT y Claude que lo que la mayoría de personas trabajando en las mejores empresas de IA aprenden en toda su carrera.

Russia has for the first time used a new small-sized missile type "Banderol," said the head of the Kharkov Regional Prosecutor's Office, Yuri Papusha. The S8000 Banderol (meaning "parcel" or "small package") is a low-cost, air-launched cruise missile developed by the Russian sanctioned defense contractor Kronshtadt Group. First identified by Ukrainian intelligence in April 2025, it is a "hybrid" weapon that blends the characteristics of a cruise missile and a long-range kamikaze drone. A standout feature reported by Ukraine's Defense Intelligence (GUR) is its ability to perform tighter, sharper turns than conventional Russian cruise missiles like the Kh-101 or Kalibr, allowing it to better navigate around air defenses. The primary launch platform is the Orion (Inokhodets) medium-altitude long-endurance (MALE) drone. It's specs look similar to the Geran-5 with a speed above 500 km per hour (up to 650) but it is significantly larger with a bigger payload. t.me/EastCalling/32…

How to Read a Vernier Caliper 📏

openEMS - a free and open electromagnetic field solver blog.adafruit.com/2026/05/04/ope…

Why your workbench needs a dedicated Bench Power Supply.** Batteries are great until they die mid-test, and wall warts are often noisy or provide the wrong voltage. If you’re serious about electronics, a Bench Power Supply is the heartbeat of your lab. It provides clean, reliable, and adjustable power so you can focus on your circuit, not your battery level. #Electronics #Engineering #Maker #powersupplies #benchpsu #TestEquipment #electronicsnotes

7 Sci-Hub Alternative Websites Paper you need to ask for payment & can't use sci-hub? You don't have to pay to read academic papers. These are 7 sci-hub alternative websites to download papers for free. 👉 Unpaywall --> https://unpaywall. org/ Install this browser extension on Chrome and read the paper directly on the journal website legally and for free. 👉 Open Access Button (OAB) --> https://lnkd. in/dXVVQpUf Copy and paste the link paper or DOI on the OAB website. This will be accessible on the next page. Legal. 👉 PaperPanda --> https://paperpanda. app/ Like Unpaywall, this Chrome extension allows you to access millions of research papers in one click. 👉 DOAJ --> https://doaj. org/ As the name implies, DOAJ (Directory of Open Access Journals) provides access to millions of scientific papers from around the world for free. 👉 OA[.]mg--> https://oa. mg/ Like Google which is made specifically to search for academic papers. There are more than 250 million papers available for access. 👉 Core --> https://core. ac. uk/ The world's largest database of research papers with more than 298 million papers from around the world that can be accessed for free. 👉 arXiv --> https://arxiv. org/ Especially for lovers of natural sciences and economics, this website provides access to 2.4 million academic papers for free. Tip: Remove any spaces in the URLs if you encounter issues accessing the websites.

🚨 Adversarial RL for Drone Interceptors: Competitive RL is being used to train drone interceptors against agile evasive drones But instead of training only the interceptor (pursuer), this paper trains both sides. 1. The interceptor learns to catch 2. The evader learns to escape Making autonomy adversarial pushes both policies to its limits. Both agents are trained inside a high-fidelity JAX quadrotor simulator running massive parallel rollouts Results showed a successful transfer zero-shot to a real indoor flight arena, and caught the simulated evader 7 times in 28 seconds. Paper: arxiv.org/pdf/2603.16279

Designing for Power Systems: Choosing Between ADC-Based Telemetry and Hardware Comparators In high-reliability hardware design, interfacing high-voltage rails (24V/12V) with a 3.3V Microcontroller (MCU) is a fundamental task. While a standard hardware comparator (like the LM393) offers a quick binary status, moving toward Analog-to-Digital (ADC) Monitoring provides a significantly more robust system architecture. Here is a technical breakdown of why this approach is becoming the standard for professional power management units: 1. The Precision Advantage (Telemetry) A comparator tells you if 24V > 12V, but it doesn't tell you the health of the rail. By using a precision voltage divider and an ADC, we gain real-time telemetry. This allows the firmware to detect: Voltage Sag: Identifying battery depletion before the system hits a critical cutoff. Transient Spikes: Monitoring regulator stability under varying load conditions. 2. Software-Defined Hysteresis Hardware-based hysteresis is fixed by resistor values. By moving the logic to the firmware, we can implement Dynamic Hysteresis. This allows us to adjust trip-points on the fly, effectively filtering out noise without changing physical components. 3. The Engineering "Bulletproofing" To ensure the MCU's longevity, the input stage must be ruggedized: Impedance Matching: Selecting resistor values (typically 10k to 100k ohms) that balance low power consumption with the ADC’s sampling requirements. Transient Suppression: Utilizing a 3.6V Zener diode or Schottky clamping to protect the MCU from input over-voltage. Noise Decoupling: Implementing a Low-Pass Filter (LPF) to attenuate high-frequency switching noise from upstream DC-DC converters. The Math: Recovery Theory To translate the scaled voltage back to the actual rail value in firmware, we apply the Scale Factor (SF): SF = (R1 + R2) / R2 For a 24V rail scaled to 3V (R1 = 70k, R2 = 10k)bs, our SF is 8. A 2.5V reading at the pin accurately represents a 20V rail status.

HackRF One low cost software defined radio github.com/greatscottgadg…

RP2040, CC1352, SX1262 IoT sniffer board github.com/ElectronicCats…

Dostałem link do świetnej mapy. Ostrzegam - mega zjadacz czasu dla osób lubiących mapy, drogi, planowanie itd. Mapa posiada warstwę na której można policzyć izochrony - czyli dokąd dojedziemy w zadanym przez siebie czasie. Ustawiamy obszar który nas interesuje, następnie podajemy czas dojazdu np z centrum Warszawy, Poznania, Katowic czy Siemiatycz np na 30 minut (można wybrać od 1 - 60 minut) albo odległość (można wybrać od 1 - 100 km) i po kliknięciu w "Generate isochrones" mapa generuje obraz. Świetna sprawa np dla tych co planują wyprowadzić się poza miasto. classic-maps.openrouteservice.org/reach?n1=52.10…

الروابط الجديدة لموقع sci-hub لتحميل الابحاث العلمية المدفوعة 👇👇 1- sci-hub.ee 2- sci-hub.xin 3- sci-hub.ai 4- sci-hub.st 5- sci-hub.se 6- sci-hub.do

Building smarter motion control? This wireless stepper motor controller combines ESP32 + TMC2240 for precise control with real-time feedback—accessible through a simple web interface. Great for robotics, CNC, and automation projects. 🔗 bit.ly/4rVeUIg

*New Product Alert* Amphenol RF introduces a precision tool designed for quick and reliable installation and removal of HD-EFI bullets without risk to the surrounding components. Learn more: amphenolrf.com/en-us/resource… #Amphenol

La industria musical se enfrentó a su peor enemigo. No era una persona. No era una empresa. Era un script de Python. Se llama yt-dlp. 158 mil estrellas en GitHub. Sin dueño. Sin licencia que demandar. Imposible de llevar a juicio. El 23 de octubre de 2020, la RIAA lanzó un DMCA contra él. GitHub lo borró en horas. Junto con 18 forks. Entonces un desarrollador hizo algo genial: Metió todo el código fuente dentro del propio repositorio de notices DMCA de GitHub. El aviso que intentaba matarlo, ahora lo contenía. 24 días después, GitHub dio marcha atrás. Restauró todo. Y creó un fondo de $1 millón para defender a desarrolladores. La industria musical perdió. Y lo mejor: La comunidad forkeó youtube-dl, lo renombró yt-dlp y sigue vivo. Última release: 17 de marzo de 2026. Un simple script de Python vs. todo el poder de Sony, Universal y Warner. Imposible de matar. (100% open source) Link en comentarios 👇