Miniature 868 MHz radio module with built-in antenna. Free Technical Library News

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Miniature 868MHz radio module with built-in antenna

31.03.2016

STMicroelectronics has released a miniature 868 MHz radio module for creating "Internet of Things" devices. The radio module is based on the SPIRIT1 transceiver and contains a built-in antenna. The module can be connected to any microcontroller with an SPI interface and completely saves the developer from wiring high-frequency circuits. The advantage of the module is its miniature size 13,4 x 11,5 x 2,0 mm and technical parameters guaranteed by a well-known manufacturer.

The module fully complies with the requirements of the State Committee for Radio Frequencies of the Russian Federation and the rules of the Customs Union in terms of radiation power and compliance with the allowed frequency grid of the 868 MHz band. The convenient format of the module board with edge contacts with a pitch of 1,27 mm allows the use of both automated and manual soldering during installation. The SPSGRF-868 can be used in energy meters, industrial and home automation, security systems and wireless sensor networks.

The ready-made SPIRIT1 Library greatly simplifies the creation of a custom application. The sample operations, sample applications, and resources available in the SPIRIT1 SDK make it easy for even the most inexperienced RF engineer to create their own wireless application. Source texts and data formats have a simple and transparent structure, which is important when mastering a new area for a developer. To quickly start development, you can also use the X-NUCLEO-IDS01A4 debug board, which is built on the basis of this module.

Features of SPSGRF-868:

Programmable parameters of the radio path
Based on SPIRIT1 Sub-1GHz radio
Modulation: 2-FSK, GFSK, MSK, GMSK, OOk, ASK
Data rate from 1 to 500 kbps
Different package formats
Compatibility with transceivers from other manufacturers
Radio Options
Receiver sensitivity: -118 dBm
Antenna power up to +11,6 dBm
Radiated power +5,3 dBm
CE and FCC certifications (SPSGRF-915)
External interface: SPI
I/O ports: up to 32 programmable functions on 4 pins
Design version:
Size 13,4 x 11,5 x 2,0mm
Built-in antenna
Integrated balun (BALF-SPI-01D3)

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next generation xbox 22.05.2013

The control of the new Xbox, including games, watching movies and TV, is carried out entirely with voice commands and gestures - the remote is no longer needed. And the new Kinect controller, according to Microsoft, is so accurate that it can pick up the player's heartbeat. Xbox One is designed not only as a game console, but also as a device to control the TV to which it is connected. Control is done entirely with voice commands and gestures - even turning on is done with a voice command. This concept completely eliminates the need to use a remote control.

One of the hosts of the event, Yusuf Mehdi, turned on the console with the phrase "Xbox On!", The console recognized his voice and automatically opened his personal page. This opportunity is available to every member of the family. To start watching TV, you need to say "Xbox, watch TV", and to return to the game - "game". To launch Internet Explorer - "go to Internet Explorer", to go to the movie - "watch movie". Powerful hardware, including 8 GB of RAM, switches instantly.

At the same time, "communication" with the console is carried out using natural phrases, Mehdi emphasized. It also showed another way to exit from watching a movie - with a gesture, as if the user takes something in front of him with both hands and puts it aside.

Connected to the Internet, Xbox One offers a TV program that is also navigated using voice commands. The user, for example, can tell the console which channel he wants to turn on. Voice commands are also supported in TV viewing mode, such as when watching sports, to display information. Xbox One has support for Skype. You can make voice and video calls using your existing equipment—TV, console, and Kinect. At the same time, simultaneous work with several functions is supported: for example, you can receive a call and watch a movie at the same time or watch a movie and start Internet Explorer.

The console runs on three operating systems, Microsoft spokesman Marc Whitten said: Xbox OS, designed for gaming; the second system, on the Windows kernel, and the third system, which links the first and second. The graphical interface resembles that of Windows 8. The console is equipped with a processor with 5 billion transistors (the company did not specify the name of the processor and the number of cores), a built-in Blu-ray drive, support for Wi-Fi and USB 3.0, as well as two HDMI connectors - input and output . The device contains a 500 GB hard drive.

Along with the game console, the Kinect game controller has been updated. Its appearance has changed significantly, a long microphone is located below.

While reading its surroundings, the new Kinect processes 2 GB of data every second, Whiten said. More accurate skeletal recognition is achieved by using a 1080p camera compared to VGA in the first generation system. "It can even recognize your heartbeat," a Microsoft spokesperson said.

Kinect can also track the movement of a mechanical wireless controller, which has also been updated. For example, with its help, the user can open or close hatches in the game in space by raising his hands up or down. In other words, the standard Xbox controller has now become a kind of analogue of the PlayStation Move.

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