RRReetain Rainainfreecodecamp.org·1d ago · 11 min readHow Sensors Collect, Process, and Track Data in Wearable DevicesA smartwatch can tell you that your heart rate is 78 beats per minute, that you've walked 6,421 steps, or that you slept for 7 hours last night. All of these numbers appear simple on the screen, but b00
MWMaggie Wanginanypcba.hashnode.dev·2d ago · 5 min readKey Considerations for High-Reliability PCB Design: A Focus on Medical and Automotive ElectronicsIn the medical and automotive sectors, PCB reliability is directly tied to human safety. A minor design flaw or manufacturing defect can have severe consequences, whether in a hospital ward or on a hi00
VNVũ Nhật Lâminblog.fiscybersec.com·2d ago · 21 min readDysphoria: Six Days After the Takedown, and Eight Years After the IdeaSummary On 19 March 2026, authorities in the United States, Canada and Germany disrupted the infrastructure behind the four largest IoT botnets ever documented — Aisuru, Kimwolf, JackSkid and Mossad. 00
SXShuran Xuinembeddedville.hashnode.dev·3d ago · 9 min readBeyond Wi-Fi: What It Really Takes to Build Reliable IoT Networking on ESP32When Connecting is only the beginning An IoT gateway sits in the middle of a journey: receiving data, making sense of it, and delivering it somewhere useful. There is a particular moment every embed10
Ccircuitrocksincircuitrocks.hashnode.dev·3d ago · 3 min readUpline Puts an ATtiny85 Online Using 4,060 Bytes of FlashHow do you get an ATtiny85 onto the internet when it has 8 KB of flash, 512 bytes of RAM, and no radio anywhere on the board?Adam Kumpf's answer is Upline, an open source serial protocol that skips th10
FSFynn Schulzinlighthousereckoning.hashnode.dev·3d ago · 8 min readLighthouseReckoning: A Lightweight LoRa Mesh Network for Arduino, ESP32 and RP2040LoRa Gives You Range. It Doesn’t Give You a Network. LoRa is great at moving small amounts of data over long distances. Getting a packet from one microcontroller to another? Straightforward. Getting t00
TITelcoEdge Inc.intelcoedgeinc.hashnode.dev·3d ago · 8 min readHow IoT Connectivity Platforms Handle Device State at ScaleManaging connectivity for a small number of IoT devices is relatively simple. A device can be activated, connected, monitored, and eventually decommissioned without creating much operational complexit00
OHOmar Hiariinblog.theembeddedrustacean.com·4d ago · 11 min readEmbedded Rust BSP with µFerris & XIAO: Getting started with µferris-bspThis is the second post in the µFerris & Xiao BSP series. If you haven't yet, start with Getting Started with µFerris & Xiao where we assembled the board, set up the toolchain, and blinked an LED. Thi00
OSOHZ Security - 24/7 Virtual Doorman Remote Guard Surveillanceinohzsecurity.hashnode.dev·4d ago · 6 min readDesigning an Event-Based Video Monitoring System for Vehicle LotsA car dealer, a fleet parking lot, an equipment storage place, and even a commercial car park can have hundreds of vehicles spread over a huge outdoor area. There can be many entry points, restricted 00
YHyujin huinfluidics-engineering-notes.hashnode.dev·4d ago · 7 min readYour AI Agent Says the Pump Is Running. The Fluid Path May Disagree.An AI agent sends pump_on = true. The controller acknowledges the command. The motor draws current. Yet the wash bottle is empty, a tube is pinched, the waste path is blocked, or a bubble has broken l00
