This sketch is used by Exercise: WS2801 RGB LED SPI Module. Full Source Code The full code is all in one file WS2801LED.ino. // -*- mode:c++; -*- /// @file WS2801LED.ino /// /// @brief Example for driving several WS2801 RGB LED modules over SPI on an Arduino UNO. /// /// @author Garth Zeglin /// @date 2014-09-13 /// /// […]
Arduino Sketch WS2801LED Continue Reading
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
SOIL MOISTURE SENSOR COATING LESSONS LEARNED THE HARD WAY Continue Reading
Allegro Microsystems’ device consists of a linear Hall sensor circuit with a copper conduction path located near the surface of the die. The Allegro ACS711 provides economical and precise solutions for AC or DC current sensing in <100 V audio, communications systems, and white goods. The device consists of a linear Hall sensor circuit with a copper conduction
ACS711 HALL EFFECT LINEAR CURRENT SENSOR Continue Reading
Vishay VCNL36821S IRED Integrated Proximity Sensor is fully integrated with an infrared emitter, a photodiode for proximity measurement, and a signal processing IC in a single package with a 12-bit ADC. With a range of up to 30cm (12″), this stand-alone component simplifies the use and design-in of proximity sensors as no mechanical barriers are required to
VISHAY VCNL36821S IRED INTEGRATED PROXIMITY SENSOR Continue Reading
This programmable current logger can measure bipolar picoamps to milliamps, with unique features such as 5kV DC voltage isolation. Saelig Company, Inc. announces the availability of the RBD 9103 USB Graphing Picoammeter, a compact, versatile, general-purpose picoammeter designed to accurately measure DC current from nanoamps to milliamps via its isolated BNC input. This rugged, portable, and affordable
SAELIG INTRODUCES RBD 9103 USB GRAPHING PICOAMMETER Continue Reading
Electrical engineers from the University of California, San Diego recently designed a new portable chip that consumes 5000 less power than the Wi-Fi radios that we have today. The new chip, which is smaller in size compared with a grain of rice, is said to be ideal for IoT devices, smart home setups, and wearables. With just 28 microwatts
NEW CHIP BRINGS ULTRA-LOW POWER WIFI CONNECTIVITY TO IOT DEVICES. Continue Reading
The LT8648S synchronous step-down dc-dc regulator from Analog Devices features second generation Silent Switcher architecture designed to minimize EMI emissions while delivering high efficiency at high switching frequencies. This includes the integration of input and boost capacitors to optimize all the fast current loops inside and make it easy to achieve advertised EMI performance by reducing layout
42V, 15A SYNCHRONOUS STEP-DOWN DC-DC REGULATOR Continue Reading
Texas Instruments’ eFuse can be used for hot-swap and power rail protection applications Texas Instruments’ TPS1663 is an easy-to-use, positive 60 V, 6 A eFuse with a 31 mΩ integrated FET. Protection for the load, source, and the eFuse itself are provided along with adjustable features such as accurate overcurrent protection, fast short circuit protection, output slew rate control, overvoltage
TPS1663 60 V, 6 A POWER LIMITING EFUSE Continue Reading
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
SAMSUNG UNVEILS 12-LAYER 3D-TSV CHIP PACKAGING TECHNOLOGY Continue Reading
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
NEW LOW-VOLTAGE, HIGH-SIDE LOAD SWITCH Continue Reading
