mesh networking News - Page 8 of 8 - CNX Software

October 2, 2017October 4, 2017 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

STMicro BlueNRG-MESH SDK for Bluetooth Mesh to Include Code for Firmware, Android and iOS Apps

Earlier this summer, the Bluetooth SIG announced Bluetooth Mesh, which supports many-to-many (m:m) device communications for up 32,767 unicast addresses per mesh network (in theory), and is compatible with Bluetooth 4.0 or greater hardware. Several companies immediately unveiled Bluetooth Mesh SDK at the time including Qualcomm, Nordic Semi, and Silicon Labs. ST Micro has now unveiled their own BlueNRG-MESH SDK which the company claims is “the market’s only three-part SDK that provides two app developer packages for Android and iOS, and the embedded-development software for building smart objects such as light fittings and sensors”. Sadly, details about the SDK are near inexistent now, except – as one would expect – BlueNRG-MESH SDK will work with ST BlueNRG Bluetooth low energy wireless network processor based on an ARM Cortex M0 core, and corresponding development kits. [Update: STSW-BNRG-Mesh page has many more details about the SDK including the architecture diagram below. ] […]

July 24, 2017 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Sonnet is a Rugged Portable Device Creating Mesh Networks for Smartphones

Cellular networks are available in most places, but not always, and you may not have connectivity while climbing mountains or other remote locations, when going abroad, during natural disaster, in very crowded places where network capacity is exceeded, or when your government decides to cut it off for “national stability and harmony”. Wouldn’t it be great if you were still able to contact with your friend in such cases, and create your own mesh networks expanding over several kilometers? That’s exactly what Sonnet does by connecting to your smartphone over WiFi, and to other Sonnet nodes over ISM frequencies (433, 868 and 925 MHz). Sonnet hardware specifications: Connectivity 802.11 b/g/n WiFi with up to 20 dBm (max varies per country); WPA/WPA2 security Long Range RF Frequencies 915 MHz (North America) 868 MHz (Europe) 433 MHz (Asia Pacific) Distance – 5km typ.; up to 10km Line-of-sight; SMA connector available to extend […]

July 19, 2017July 19, 2017 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

Bluetooth Low Energy Now Supports Mesh Networking for the Internet of Things

The Bluetooth Special Interest Group (SIG) has announced support for mesh networking for BLE, which enables many-to-many (m:m) device communications, and is optimized for large scale device networks for building automation, sensor networks, asset tracking solutions, and other IoT solutions where up to thousands of devices need to reliably and securely communicate with one another. The standard actually specifies 32,767 unicast addresses per mesh network, but that number of nodes is not achievable right now. Mesh networking works with Bluetooth Low Energy and is compatible with version 4.0 and higher of the specifications. It requires SDK support for the GAP Broadcaster and Observer roles to both advertise and scan for advertising packets, and the FAQ claims Mesh Networking does not require extra power, and the devices only need to wake up at least once every four days or when they have data to transmit. Mobile apps connecting to mesh networking products […]