RF Wireless and Device Networking

Device networking for business, develops reliable products and technologies to connect and securely manage local or remote electronic devices over the network or via the web.

"Digi provides the essential layer of machine-to-machine (M2M) communications — the remote monitoring and management that critical applications depend on."

Digi - Wireless Device Networking

External and embedded Wi-Fi products make it easy to add embedded 802.11a/b/g wireless LAN networking to any electronic device, or to connect serial devices over a Wi-Fi network.

The XBee Wi-Fi Cloud Kit includes all of the hardware and software tools needed to build a cloud-connected Wi-Fi prototype in under an hour. The Internet of Things has never been so simple!



XBee Wi-Fi -  OEM Module - with Fully Integrated Support for Digi Device Cloud.

The XBee Wi-Fi Cloud Kit, which fully integrates into Device Cloud, is a simple way for anyone with an interest in M2M and the Internet of Things to quickly build a hardware prototype and integrate it into an internet-based application.

Digi International Inc.
11001 Bren Road East, Minnetonka, MN 55343, USA.

delabs Notes

Digi is one of the Pioneers of Device Networking or M2M as it may be called now. Some call the Systems applying these technologies as "Internet of Things - IoT" today (Home and Office Automation).

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Waspmote may have two radios at the same time connected when using the Expansion Radio Board allowing the creation of bridges among different networks such as ZigBee and Wifi, Wifi and 3G/GPRS, RFID and Bluetooth, etc.

Open source Wireless sensor platform - Waspmote

"The idea behind the Raspberry Pi to Arduino shields connection bridge is to allow to use any of the shields, boards and modules designed for Arduino in Raspberry Pi. It includes also the possibility of connecting digital and analog sensors, using the same pinout of Arduino but with the power and capabilities of Raspberry."



Cooking Hacks - Tasty Electronics for the Arduino and Raspberry Pi Community.

The have a wide range of electronic products and kits including Arduino, ZigBee, GPRS, Sensors, Servos, Leds, LCDs etc.

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Peter Jan Lüthi from  Switzerland has to his credit this Ph.D. Thesis - VLSI Circuits for MIMO Preprocessing.This is related to design, implementation and demonstration of suitable algorithms for MIMO wireless communication.

Real-time 4x4 MIMO-OFDM Testbed

"The latest mobile applications and the growing number of wireless users are increasing the demand for high-throughput wireless access solutions. Multiple-input multiple-output (MIMO) technology combined with orthogonal frequency-division multiplexing (OFDM) constitute today's most promising approach to exploit the limited radio frequency resources in a highly efficient way. "



Fully operational SQRD-based MIMO preprocessing with two dual-core MMSE-SQRD ASICs in the real-time 4x4 MIMO-OFDM testbed. One MMSE-SQRD ASIC is visible in front, the second ASIC is located underneath the two RF boards.

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Group of individuals and firms supporting and helping the implementation of Modbus communication protocol suite and the evolution to address architectures for distributed automation systems.

Modbus Communication Protocol Suite

Some Activities of the Modbus Organization are ...to Encourage, support and evolve ...

• Participation in standards activities worldwide.
• Leading the evolution of the Modbus protocol and its variants.
• Modbus across a broad spectrum of physical layers and transmission media.
• Conformance testing program to insure greater interoperability of Modbus devices.

Some Facts -

Modbus Protocol is a messaging structure developed by Modicon (Schneider Electric) in 1979. It is used to establish master-slave/client-server communication between intelligent devices. It is a de facto standard, truly open and the most widely used network protocol in the industrial manufacturing environment.


The semiconductor industry has implemented a Network Communication Standard and an Object Messaging Protocol using Modbus TCP/IP. This allows SEMI Sensor Bus compatible sensors to communicate with each other using Modbus TCP/IP.

Wireless Thermostat Controller, SWC-TSTAT-1

The wireless thermostat controller is a full function wireless mesh device with integrated radio that can be configured to control heat pump systems, (with auxiliary or emergency heating if necessary), gas/oil heating systems with add on cooling, control high and low balance points as well as the number of heating and cooling stages needing precise control. It can even adapt to manage the number of fan speeds it must control.

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Information network test & measurement for mobile & internet, RF&Microwave solutions, fibre-optic telecommunications and industrial solutions.

Anritsu Corporation - Test and Measurement

Anritsu Corporation is a Japanese company specializing in the test and measurement equipment market. Products include microwave, radio frequency (RF), and optical signal generators, spectrum analyzers, and network analyzers.



The VectorStar family is Anritsu's Premium VNA line, providing the highest overall performance on a modern platform. The MS4640B VectorStar VNA offers the broadest coverage in a single instrument, 70 kHz to 70 GHz. The additional two decades at the low end are even more impressive than the guaranteed 70 GHz coverage on the high end.

VectorStar Family of RF, µW, mmW VNAs MS4640B Series

The Anritsu MS4640B Vector Network Analyzer offers a new level of performance for device modeling engineers struggling to accurately and reliably characterize their devices, for R&D engineers pushing the last fraction of a dB out of their state-of-the-art designs, and for the manufacturing engineer trying to maximize throughput without sacrificing accuracy

1931- Anritsu Electric Corporation was established by the merger of Kyoritsu Electric and Annaka Electric

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