Ccircuitrocksincircuitrocks.hashnode.dev·9h ago · 3 min readWalnut-Shell IR Remote Built on a XIAO ESP32-C3 and Wi-FiMakers keep hiding microcontrollers inside everyday objects: a lamp shaped like a book, a speaker inside a lunchbox, a smart plug that looks like a wall socket. The trend rewards one skill above all, 00
ANAPITube News APIinapitube.hashnode.dev·2d ago · 12 min readHeadlines in Home Assistant with a REST sensor, and how often to pollHome Assistant's REST sensor polls every 30 seconds by default. Point it at a news API and that is 2,880 requests a day for a card nobody looks at more than a few times an hour. A free news API key gi00
WWendelinaboveinfranet.hashnode.dev·2d ago · 6 min readUnderstanding the Technical Flow of an RFID Hotel Lock SystemRFID hotel lock systems look simple to guests: receive a key card, tap it on the door reader, and enter the room. Technically, the process involves several components working together: Hotel Lock Soft00
OHOmar Hiariinblog.theembeddedrustacean.com·3d ago · 21 min readEmbedded Rust BSPs with uFerris & Xiao: RTC Support with I2CThis is the eighth post in the µFerris & Xiao BSP series, where we build a Board Support Package from scratch, one peripheral at a time. In the previous post, we added the I2C bus. This post adds the 10
TTTHE TISAinthe-tisa-developers.hashnode.dev·3d ago · 13 min readAI in Manufacturing: Smart Factory ApplicationsA bearing on a packaging line starts to wear out on a Tuesday. Vibration creeps up by a fraction, the motor draws slightly more current, and nobody hears anything over the noise of the floor. By Frida00
Pperchdarbinyaniniotforall.hashnode.dev·4d ago · 5 min readHow to Build a Printer Monitoring System for a Mixed-Device FleetA printer monitoring system collects device status, supply levels, errors, and usage data in one place. For an IT team managing printers across several offices, the difficult part is usually not displ00
CChloeinsmithchloe.hashnode.dev·4d ago · 12 min readHow to Build a Fitness Wearable App with React NativeMost "build a fitness app in React Native" tutorials stop at the easy part: a polished UI, a workout list, a chart. The engineering that actually matters — if you want to ship a companion app for a Wh00
Ccircuitrocksincircuitrocks.hashnode.dev·4d ago · 3 min readHide an ESP32-C3 IR Blaster Inside a Walnut for Smart Home ControlWant a smart-home gadget that nobody notices sitting on the shelf? Grab an ESP32-C3 dev board, two or three IR LEDs, a 100-ohm resistor, a pair of small neodymium magnets, and an empty walnut shell. T00
KPKevin Paninyoyouv.hashnode.dev·4d ago · 7 min readDesigning a Fail-Safe ESP32 Controller for a Flow-Through UVC LED SystemESP32 UVC LED Controller Architecture An ESP32, a flow sensor, a temperature sensor, and a UVC LED driver sound like the ingredients for a fairly simple embedded project. On paper, the logic is straig00
SIstamp IQinstampiqhashnodedev.hashnode.dev·4d ago · 4 min readSystem Design: Building a Live Event Analytics Platform with RFIDSystem Design: Building a Live Event Analytics Platform with RFID & Edge Computing If you look under the hood of most B2B event management software, you will find a glaring architectural flaw: they ar00
