RF Wirelesss Optics

RF, Microwave, Wireless, Optics and High Frequency Applications. Low Power Embedded Devices and Networking. Part of delabs Technologies

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Wednesday, April 08, 2020

Digi - Wireless 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

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).

Saturday, April 04, 2020

Open source Wireless sensor platform - Waspmote

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."


Raspberry Pi to Arduino shields connection bridge

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.

Thursday, April 02, 2020

Real-time 4x4 MIMO-OFDM Testbed

Peter Jan L├╝thi 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. "

Real-time 4x4 MIMO-OFDM Testbed

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.