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October 14, 2015 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Freescale Kinetis KW41Z Wireless MCU Supports Bluetooth 4.2, Zigbee, and Thread

Freescale has unveiled a new wireless micro-controller part of their Kinetis MCU family with Kinetis KW41Z, based on an ARM Cortex M0+ core, and supporting both the latest Bluetooth 4.2 specifications, as well as a 802.15.4 radio allowing support for Zigbee and Thread. Kinetis KW41Z main features and specifications: ARM Cortex-M0+ core @ 48 MHz, with up to 512 KB Flash memory, up to 128 KB SRAM, and an integrated balun Multi Protocol Radio 2.4 GHz radio, Bluetooth Low Energy 4.2 compliant IEEE 802.15.4-2011 standard compliant radio Receiver Sensitivity (Typ.) – BLE: -96 dBm; 802.15.4: -102 dBm Programmable Transmitter Output Power up to +4 dBm I/Os – 2x I2C, 2x SPI, LPUART, TSI, CMT and GPIOs with interrupt capabilities Analog modules – 16-bit ADC, 12-bit DAC, 6-bit High Speed Analog Comparator (CMP) Security – AES-128 Accelerator (AESA), True Random Number Generator (TRNG) Operating Voltage Ranges Bypass Voltage: 1.71V to 3.6V […]

March 11, 2015March 11, 2015 by Jean-Luc Aufranc (CNXSoft) - No Comments

Embedded Systems Conference 2015 Schedule – May 6-7, 2015

The Embedded Systems Conference took the name “Design West” for a couple of years, but this year, there’s no mention of Design West, and the Embedded System Conference 2015 will take place in Boston, MA, US on May 6-7, 2015. The 2-day event will have a demo hall, and well as sessions divided into 8 tracks: Connected Devices and the IoT Embedded Software Design Hardware: Design, I/O and Interfacing Prototyping Embedded Systems Design Software: Design, Languages, & Quality Fantastical Theater Teardowns The full schedule has now been posted, and I’ll build a virtual schedule with some of the sessions provided. Wednesday May 6, 2015 8:00 – 8:45 – Understanding Google/Nest Thread by Michael Anderson, Chief Scientist, The PTR Group, Inc. The IoT will live or die based on its connectivity. In examining existing wireless protocols, Google/Nest found most of them lacking. In order to address the needs for low-power wireless […]

July 21, 2014July 21, 2014 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Thread is a New IP-based Wireless Protocol Leveraging 6LoWPAN and 802.15.4 Standards

Wi-Fi is a neat way to connect devices to Internet, but it has two main inconveniences: relatively high cost and power consumption. Luckily there are standards that addresses the cost and power consumption issues. Radio chips based on IEEE 802.15.4, a standard which specifies the physical layer and media access control for low-rate wireless personal area networks, are common place and found in many existing devices relying on higher level wireless protocols such as ZigBee, ISA100.11a, WirelessHART, and MiWi. AFAIK, Zigbee is the most popular of the aforementioned protocols, but is hindered by the requirements of the license for commercial products (annual fee), Zigbee membership requirements conflict with many open source license such as GPL, and the standard suffers from lack of interoperability and IPv6 support, and power requirements that are too high for some applications. So a consortium of seven companies namely ARM, Big Ass Fans, Freescale, Nest, Samsung, […]