IoT
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Getting Started With MAX32690 EV Kit The MAX32690 evaluation kit provides a solid foundation to explore the full capabilities of the MAX32690 microcontroller, which is an advanced system-on-chip (SoC). It features an ARM Cortex-M4F CPU for efficient computation of complex functions and algorithms. It features the latest-generation Bluetooth 5 Low Energy (Bluetooth LE) radio designed for wearable and… |
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One Maker Runs His Whole Lettuce Grow Room on 12 ESP32s, From Misting Valves to pH Dosing Most ESP32 garden projects stop at a soil moisture sensor and a pump. Reddit user Repulsive_Ant_7167 went much further: an indoor aeroponic lettuce grow room where every job, from misting the roots to dosing nutrients, is handled by its own ESP32. There are 12 of them, driving 8 four-channel MOSFET boards, and they all report into one "Garden Manager" spreadsheet. The post became one of the… |
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He Wouldn't Pay for a Smart Blood Pressure Monitor, So an ESP32-CAM Now Reads His Old One Smart blood pressure monitors that sync to an app usually cost more than plain ones, and many push your readings into somebody else's cloud account. Tomasz Burzy of Mellow_Labs wanted his readings in his own self-hosted health tracker instead, so he kept a basic A&D UA-611 monitor and taught it Wi-Fi from the outside. An ESP32-CAM on a 3D-printed arm looks at the LCD, reads systolic,… |
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This Desk Buoy Copies the Live Motion of a Real Buoy at Sea, Hanging From 8 Stepper Lines A Belgian maritime pilot, whose job is guiding ships in and out of port, has built a desk piece that brings the sea indoors. His 30 cm 3D-printed west cardinal buoy hangs on eight lines, each wound by its own small stepper motor, and it rolls and heaves with live wave data from a real buoy out at sea. Pick a station off Bermuda and it moves to 1.9 m waves every 8 seconds; for some buoys it… |
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A Son Built His Offline Dad an ESP32 E-Paper Frame That Shows Which Airliner Is Flying Over the Alps Right Now Daniel Zellhuber's father lives in the Bavarian mountains, loves watching planes cross the sky, and does not use the internet. So instead of showing him a flight-tracking app, Daniel built him a small flight tracker in a picture frame. Whenever an airliner passes overhead, the colour e-paper screen shows the airline with its logo, flight number, route, aircraft type, speed and altitude. There… |
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Smart Contactless Water-Level Monitoring System Using SemLab-CLS-24BP The SemLab Contactless Liquid Level Sense Module is an open-source, liquid level sensor designed for non-invasive fluid detection. By utilising capacitive sensing, the sensor detects the presence of liquid inside a container or pipeline without making direct contact with the fluid. This non-contact design prevents sensor corrosion, contamination, and degradation… |
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How to Build a Smart Wireless Doorbell System Using IoT Missing a visitor at the front door usually means missed package deliveries, keeping friends waiting outside, or missing unexpected guests. Standard doorbells only work if we happen to be sitting nearby and the chime is loud enough to hear. If we are stuck in a work meeting, listening to music with headphones, or away from home, it is easy to miss the ring, leaving… |
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Renesas Introduces Smallest Configurable GreenPAK IC with Multi-Time Programmability in Ultra-Compact WLCSP and STQFN Packages Renesas Electronics Corporation (TSE:6723), a premier supplier of advanced semiconductor solutions, today announced the SLG46801, the industry’s smallest GreenPAK configurable mixed-signal device offered in both WLCSP and STQFN packages. The 9-ball WLCSP measures just 1.155mm × 1.155mm and combines an ultra-small footprint with multi-time programmability, enabling designers to reduce board… |
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ESP32-Based Smart Mailbox Uses Computer Vision to Detect Packages and Trigger Motorized Doors and Alerts The project documents a fully automated smart mailbox built by Re-Crafting DIY. It integrates advanced electronics to solve practical issues like package theft, weather damage, and inadequate storage space. By repurposing an old car’s wiper motor for the door mechanism, the mailbox features a heavy-duty, motorized front door controlled by a central brain. It might have been a little too much… |
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How to Build an Elderly Fall Detection System with XIAO ESP32-S3 When an ageing parent falls at home, the immediate injury is usually only half the danger. The real danger begins during the critical time they spend waiting on the floor for help. Lying immobile for extended periods can rapidly lead to severe dehydration, hypothermia, and muscle breakdown, even in homes where family members are regularly around. Expecting an injured… |
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Build a Smart Cooker Whistle Counter Using ESP32 Almost every kitchen has a pressure cooker, but we've all had trouble handling them. It’s too easy to turn on the stove, get distracted by work, TV, or housework, and forget to turn it off. If we miss a whistle count, food gets burned, utensils get spoiled, and there are chances of accidents in the kitchen. But then again, being in the kitchen and manually counting… |
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Semtech Expands LoRa Plus Family: LR2022 and LR2012 Now in Production CAMARILLO, Calif. Aug 19- Semtech Corporation (Nasdaq: SMTC), a leading provider of high-performance semiconductors powering AI data center networking and intelligent, connected Internet of Things (“IoT”) devices worldwide, today announced the expansion of its LoRa Plus family with the introduction of the LR2022 and LR2012 transceivers, both now available in… |
