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TEMPERATURE SENSOR ACCURATE TO 0.25°C

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The STTS22H temperature sensor from STMicroelectronics offers high accuracy with low operating and standby current and flexible operating modes. By Gina Roos @ electronicproducts.com STMicroelectronics has launched its STTS22H temperature sensor with typical temperature-reading accuracy of 0.25°C and low operating and standby current. The device enhances temperature and heat-flow monitoring in asset trackers, shipping-container loggers, HVAC systems, air humidifiers, …

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NEW SURFACE-MOUNT FULLY INTEGRATED CURRENT SENSORS

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The ACS772/3 family expands to include through-hole and surface-mount CB package options with enhanced working isolation voltage Allegro MicroSystems, a global leader in power and sensing solutions for motion control and energy efficient systems, today announced significant ease-of-use enhancements to its popular high current fully integrated ACS772/3 current sensor “CB” package family. These industry-leading, automotive grade high …

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USB-PD STAND-ALONE ADAPTER BOARD FROM OXPLOT

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Modern devices are quickly switching to USB-C power adapters, gradually fading out USB-A, and USB-B adapters. USB’s Power Delivery (USB-PD) protocol enables the supplies to be  flexible enough to handle charging (or powering) devices ranging from mobile phones to laptops. There are many high quality 90-100 Watt USB-C power adapters available. But unfortunately, there are many devices that …

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NEW LOW-VOLTAGE, HIGH-SIDE LOAD SWITCH

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Diodes Incorporated has announced the introduction of the AP22913, a 2A single-channel, slew-rate-controlled load switch with true reverse current blocking for high-side load-switching applications. Single-channel high-side load switches provide an effective way of applying or removing power to a load, particularly to removable peripherals powered through a USB port. The AP22913A load switch incorporates true reverse current …

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SAMSUNG UNVEILS 12-LAYER 3D-TSV CHIP PACKAGING TECHNOLOGY

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An industry’s first, the 12-layer 3D-TSV (Through Silicon Via) technology developed by Samsung Electronics enables the stacking of 12 DRAM chips using more than 60,000 TSV holes, while maintaining the same thickness as current 8-layer chips. By Julien Happich @ eenewseurope.com Developed for the mass production of high-performance chips, the layered packaging technology requires pinpoint accuracy …

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SOIL MOISTURE SENSOR COATING LESSONS LEARNED THE HARD WAY

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Ever wanted to measure soil moisture? Common “soil moisture meter module arduino raspberry compatible free shipping” PCBs might deceive you with their ascetic looks. Today, [Raphael (@rbaron_)] is here to teach us (Twitter, unrolled) what it takes to build a soil-embedded sensor that can actually survive contact with a plant. As the picture might hint, waterproofing is of …

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Arduino Sketch RemoteStation

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This sketch demonstrates Internet-based remote communication using a companion ‘bridge’ program running on the attached host which sends and receives messages via an online MQTT server. This allows connecting one Arduino to another over arbitrary distances, which we can use as a starting point for building collaborative telepresence. Full Source Code The full code is …

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FAIL OF THE WEEK: ALTERNATOR POWERED ELECTRIC GO-KART DOESN’T GO

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What do you give a six-year-old who loves going fast but doesn’t like loud noises? Convert a gas go-kart to electric of course! (Video, embedded below.) That goal started [Robert Dunn] of Aging Wheels down a long path toward a go-kart that almost, but doesn’t quite… work. If you’ve watched any of [Robert’s] videos, you know …

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ECG PROJECT WITH ALL THE MESSY SAFETY DETAILS

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We’ve seen a number of heart rate monitoring projects on Hackaday, but [Peter’s] electrocardiography (ECG) Instructable really caught out attention. If you’ve followed Hackaday for any period of time, you’re probably already somewhat familiar with the hardware needed to record the ECG. First, you need a high input impedance instrumentation amplifier to pick up the millivolt …

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