Microcontroller-Based Duodecimal Clock Project

The seven-segment LED displays were mounted on the foil side of a single-sided circuit board. I used single-row, in-line sockets to facilitate soldering. The sockets also elevated the displays above the circuit board and the SMT resistors placed beneath the displays.

Programmers and embedded circuit designers know that decimal is not the preferred number system for digital devices. Binary, octal, and hexadecimal numbers rule the day, so they’re comfortable using strange number systems. Clocks are essentially duodecimal, or base-12, devices. Devlin Gualtieri designed a … Continue reading

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New Ultra-Low Power Precision Op-Amps

NCS325-333-Hires

ON Semiconductor recently unveiled a new family of ultra-low power precision operational amplifiers. The precision NCS325 and NCS333 CMOS op-amps deliver zero drift operation and quiescent current for front-end amplifier circuits and power management designs. The op-amp devices enhance the accuracy of … Continue reading

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Microchip Joins Linux Foundation & Automotive Grade Linux

Microchip MOST

Microchip Technology recently announced that it joined The Linux Foundation and Automotive Grade Linux (AGL), which is an open-source project developing a common, Linux-based software stack for the connected car. Additionally, Microchip has begun enabling designers to use the Linux … Continue reading

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CY8CKIT-042-BLE Bluetooth Low Energy Pioneer Kit

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At just $49, Cypress Semiconductor’s CY8CKIT-042-BLE Bluetooth Low Energy Pioneer Kit is an affordable tool for creating BLE applications with a PSoC 4 and PRoC BLE devices. The kit supports system-level designs using the PSoC Creator IDE. It is compatible with Arduino … Continue reading

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GP691 ZigBee Radio Chip and GPM6000 Modules for IoT

IoTGreenPeak

At CES 2015, GreenPeak Technologies announced a new GP691 ZigBee communication controller chip and GPM6000 integrated ZigBee modules for Internet of Things applications and smart home devices. The GP691 ZigBee communications controller provides IEEE Standard 802.15.4-compliant robust spread spectrum data communication … Continue reading

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Tips for Measuring Small Currents

Figure 1: The current sources: ideal (a), semiconductor (b), and resistive (c)

Most inexpensive hand-held multimeters have measurement ranges from several amps to single-digit milliamps. While generally handy, such meters are insufficient for sensitive current measurements. There is a solution though. With the following project, you can extend the current measurement range from milliamps down into the nanoamp and picoamp … Continue reading

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Expanded Multi-Range Programmable DC Power Supply Offerings

BK-9201_front

B&K Precision recently announced the 9200 Series, which is its newest multi-range programmable DC power supply line. The series includes four 200- to 600-W models that can deliver power in any combination of the rated voltage and current up to the … Continue reading

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COMSOL Multiphysics 5.0 with App Builder and COMSOL Server to Run Simulation Apps

ComsolAcousticSimulationModelWeb

COMSOL provides simulation software for product design and research to technical enterprises, research labs, and universities throughout the world. Its flagship product, COMSOL Multiphysics, is a software environment for modeling and simulating any physics-based system and for building applications. A … Continue reading

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WiLink 8 Range of Wi-Fi and Bluetooth Modules

WiLink8TexasInstruments

Texas Instruments has announced the WiLink 8 combo connectivity modules to support Wi-Fi in the 2.4- and 5-GHz bands. The new highly integrated module family offers high throughput and extended industrial temperature range with integrated Wi-Fi and Bluetooth. The modules complement … Continue reading

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New PMR Common Platform Processor

CML - 7241_7341Image

CML Microcircuits recently released a PMR common platform processor to support digital/analog FDMA PMR/LMR and two-slot TDMA digital systems. As engineers have moved two-way radio from analog to digital, a variety of digital FDMA and TDMA PMR/LMR systems have emerged along … Continue reading

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Quad Output Programmable Universal PMIC

Exar-EX039_xr77129

Exar Corp. recently announced the XR77129, a quad output programmable universal PMIC with an input operating voltage range of 6 to 40 V. Its patented control architecture is well suited for 40-V inputs using a 17-bit wide PID voltage mode VIN … Continue reading

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New EZ App Lynx Library for Creating Smart Bluetooth Sensors

EZ App Lynx Post_final

CCS C-Aware IDE now includes the EZ App Lynx library (#include <EZApp.c>). Quickly create a Bluetooth wireless sensor, or controller, that may be viewed or managed on a paired mobile device using the EZ App Lynx Android app. The free … Continue reading

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Microcontroller-Based Wireless Pedometer & Pace Tacker Project

ChuangModule2

Anyone can easily order a pedometer or GPS sports watch on the Internet. But engineers like challenges, right? With the right parts and a little knowhow, you can engineer your own microcontroller-based wireless Bluetooth pedometer and pace tracker. In the … Continue reading

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Microcontroller-Based Control Display Component

Photo 1: Fully functional CDC prototype

Jerry Brown, a California-based aerospace engineer, designed and built (both the hardware and software) an MCU-based computer display component (CDC) for a traffic-monitoring system. The system with the CDC is intended for monitoring and recording the accumulative count, direction of travel, speed, and … Continue reading

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5th International PECCS Conference

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The fifth edition of the PECCS conference (5th International Conference on Pervasive and Embedded Computing and Communication Systems) organized by INSTICC (Institute for Systems and Technologies of Information, Control and Communication) will take place from the February 11-13, 2015 in … Continue reading

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