Miniature Real-Time Controller using PIC16F84

Introduction The F84 MRTC was my second design of a miniature real-time controller. This version uses PIC16F84 running with a low power X-tal 32,768Hz. The scheduler for 6-channel output was saved in EEPROM. No terminal for serial downloading of the scheduler. It's suitable for fixed scheduler job. Two AA size battery provides +3V backup for clock operation when main power has failed. Time setting at 19:00 ...

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Using Transistor as a Switch

Most of microcontrollers work within 5 volt environment and the I/O port can only handle current up to 20mA; therefore if we want to attach the microcontroller’s I/O port to different voltage level circuit or to drive devices with more than 20mA; we need to use the interface circuit. One of the popular method is to use the Bipolar Junction Transistor (BJT) or we just called it transistor in this tutorial. I ...

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SDP3x Series – Differential Pressure Sensors

The SDP3x is the world's smallest differential pressure sensor. It measures just 5 mm x 8 mm x 5 mm, opening up new dimensions of integration and application possibilities. The senor is based on the next generation of the CMOSens® sensor chip and is the heart of Sensirion's new sensor platform for measuring differential pressure and mass flow. The SDP3x differential pressure sensor is reflow solderable, pro ...

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Xilinx puts seven ARM cores on 16nm finfet SoC

Xilinx has integrated three ARM processors with seven cores on its latest Zynq programmable system-on-chip device. The programmable device, which is part of the company’s latest 16nm finfet ultraScale+ family of FPGAs, combines a 64-bit quad-core ARM Cortex-A53 processor with a dual-core Cortex-R5 real-time processor for deterministic operation and a Mali-400MP graphics processor. Embedded World: Your Elect ...

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Silicon Labs launches Blue Gecko

Silicon Labs has introduced Blue Gecko which combines its EFM32 Gecko MCU technology with a Bluetooth Smart transceiver on one die combined with the Bluegiga Bluetooth Smart software stack which can transmit +10 dBm or higher output power with its integrated power amplifier and balun. Blue Gecko SoCs are based on the ARM Cortex-M3 and M4 cores and offer 128 to 256kbyte flash sizes and 16 to 32kbyte RAM size ...

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PIC Microcontrollers – Programming in BASIC

The PIC16F887 is a product of Microchip. It features all the modules that modern microcontrollers normally have. For its low price, wide range of application, high quality and easy availability, it is an ideal solution in applications such as the control of different processes in industry, measurement of different values etc. A list below includes only some of its key features. THE PIC16F887 BASIC FEATURES ...

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Mitsubishi Electric Develops High-precision Air-quality Sensor for PM2.5

TOKYO, February 8, 2016 - Mitsubishi Electric Corporation (TOKYO: 6503) announced today that it has developed a small, high-precision air-quality sensor, the world first to detect all fine particles measuring no more than 2.5 micrometers in diameter, called PM2.5, as well as pollen and dust. It also senses the density of particles precisely. Enlarge Prototype of Mitsubishi Electric's new air-quality sensor ...

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Infineon adds to lighting control IC range

Infineon has added to its lighting control ICs, with a chip addressing lighting systems in the range of 40W to 300W. The high-voltage resonant controller IC ICL5101, is for indoor and outdoor LED lighting, high-bay and low-bay lighting, street lighting, parking garage and canopy lighting, office lighting, retail and shop lighting. Since the total cost of ownership is an important aspect for industrial light ...

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DragonBoard™ 410c – The Dragon Is Coming

A LOT OF POWER IN A TINY FOOTPRINT. Smaller than a standard playing card, the DragonBoard™ 410c packs a lot in a tiny footprint, including a quad-core 1.2Ghz Snapdragon 410 processor, 1GB RAM, 8GB eMMC storage, Wifi, GPS, and Bluetooth. A PLATFORM BUILT FOR ANY PROJECT The DragonBoard™ 410c offers a fully integrated solution of hardware and software that is designed to erase technical limitations and offer ...

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Extend PIC Microcontroller‘s RAM by without using EMI

Introduction Virtually all PIC microcontrollers have some banking mechanism to extend addressing to additional memory space. But this external data memory is not directly addressable (except in some high versions of PIC18 devices, which include PIC18F8520, PIC18F6620, etc.). In this post we describe easy to implement external memory interface for PIC microcontrollers. Theoretically most of the PIC microcont ...

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