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March 4, 2016May 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Embedded Linux Conference 2016 and OpenIoT Summit 2016 Schedule

The Embedded Linux Conference 2016 and the OpenIoT summit 2016 will take place on April 4 – 6, 2016 in San Diego, California, and over 800 attended will meet including kernel & system developers, userspace developers, and product vendors. The Linux Foundation has recently published the schedule, so I’ve had a look at some of the talks, and designed my own virtual schedule to find out more the current development focus although I won’t attend. Monday April 4 10:40am – 11:30am – Linux Connectivity for IoT by Marcel Holtmann, Intel OTC There are many connectivity solutions that available for IoT. For example Bluetooth Low Energy, 802.15.4, Zigbee, OIC, Thread and others. This presentation will provide and overview of the existing technology and upcoming standard and how they tie into the Linux kernel and its ecosystem. 11:40 – 12:30 – BoF: kernelci.org: A Million Kernel Boots and Counting by Kevin Hilman, […]

February 19, 2016February 19, 2016 by Jean-Luc Aufranc (CNXSoft) - No Comments

Rockchip RKi6000 Low Power WiFi SoC Showcased with IoT Demo Board

Announced last year, Rockchip RKi6000 SoC promised WiFi connectivity at Bluetooth 4.0 LE power consumption levels, and the company has recently showcased the technology with a demo board controlling four lightbulbs. The chart above shows Rorkchip solution can transmit data at 802.11b speeds (11 Mbps) while still keeping power consumption low at around 10mW, similar to BT LE, and good enough to run on batteries. Peak Tx and Rx power has gone up a little since the first announcement, as the company now claims 66mW @ 11 Mbps instead of just 60mW. While there’s basically zero information about the chip on Rockchip website, you may have noticed a QR code on the product brochure in Charbax video linking to Rockchip IoT Club, which you can join as long as you work for a company with a specific project in mind. Jean-Luc Aufranc (CNXSoft)Jean-Luc started CNX Software in 2010 as a […]

February 15, 2016February 15, 2016 by Jean-Luc Aufranc (CNXSoft) - No Comments

Linaro Connect 2016 Bangkok Schedule – March 7-11, 2016

Linaro Connect Bangkok (BKK16) will take place on March 7 – 11, 2016, and the schedule is now available for the 5-day event with keynotes and sessions. Whether you’re going to attend or not, it’s always interesting to check the schedule to find out what’s going on in terms of ARM Linux development. The five days will focus on work by different Linaro groups, but really sessions are mixed for any given day, and I’ve created a virtual schedule for each day with available information, as Linaro has become a little more closed to the outside than when it was launched a few years ago. Monday 7 – LITE (Linaro IoT & Embedded Group) 1400 – 14:50 – Evolution of the Reference Software Platform Project The Reference Software Platform lead project was introduced in Linaro Connect San Francisco 2015, and since then it evolved and matured with the completion of […]

February 7, 2016February 19, 2016 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Izitron I-SEN1 Environmental Sensors Board Works with XBee Modules

Izitron, a start-up based in the South of France, has designed a board with temperature, pressure, humidity and light sensors and a XBee header to provide a way to monitoring environmental variables for weather monitoring, agriculture, industrial applications, and more. I-SEN1 technical specifications: Sensors Temperature – Microchip MCP9700-E/T0; accuracy: ±4°C Accuracy from 0°C to +70°C | -4°C/+6°C Accuracy from -40°C to +150°C; temperature range: -40 to 125 °C Pressure – Infineon KP236N6165; accuracy: 2%; pressure range: 60 kPa to 165 kPa; temperature range: -40 to 125 °C Humidity – Honeywell HIH-5030-001; accuracy: ±3% RH; range: 0 to 100% RH; temperature range: -40 to 85 °C Light – AMS TSL14S-LF; reponsivity: 16 mV/ (uW/cm2); temperature range: 0 to 70 °C Header for XBee RF module Power Supply 5V via micro USB 5 to 12V via Wago terminal block 2x batteries No power management chip Power on/off button Power consumption – Up […]

January 29, 2016 by Jean-Luc Aufranc (CNXSoft) - No Comments

Embedded Systems Conference 2016 Schedule – April 13-14

The Embedded Systems Conference 2016 will take place in Boston on April 13-14, and the organizers have now released the schedule, minus some keynotes, which features four main tracks: Embedded Hardware, Embedded Software, Connected Devices and the Internet of Things (IoT), and the ESC Engineering Theatre. As usual, I’ve gone through the list of talks and composed my own little virtual schedule which ended up with sessions focusing on power management, IoT, and security, as well some optimization and drivers development talks among others, such as patents, and the origin of Gerber files. Wednesday 13 8:00 – 9:00 – Power Management in Embedded Systems by Colin Walls, Embedded Software Technologist, Mentor Graphics The importance of power management in today’s embedded designs has been steadily growing as an increasing number of battery powered devices are developed. In this session, we will discuss design considerations that should be made when starting a […]

December 22, 2015December 22, 2015 by Jean-Luc Aufranc (CNXSoft) - 14 Comments

SMA-Q Smartwatch Mini Review and Teardown

I had great hopes for SMA-Q smartwatch, as it features an always on color e-Paper display, a built-in heart rate monitor, and promised 30-day standby battery life, as well as being 30-meter water resistant. But last week, I found out that the latter did not mean waterproof, and instead the watch was rated IP65 that’s only good enough to wash hands and a little rain, but not showering let alone swimming. In the last week, I could play with the watch, and found some serious Bluetooth connectivity issues (with Iocean M6752 smartphone), and I was recommended to upgrade the firmware of SMA-Q watch, and after that my Bluetooth issue have somewhat improve, but everything pretty much went downhill, and the watch is now out of order, and shows no sign of life. So while I was expecting to write a full review, I’ll simply report with experience with the watch […]

December 18, 2015 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

TI SimpleLink CC1310 Wireless MCU Promises 20 Km Range, 20-Year Battery Life on a Coin Cell

Some LPWAN standards such as SigFox, LoRa, or nWave allows for transmission of data at low bitrate over several kilometers, and I’ve very recently featured Microchip’s LoRa modules and motes in this blog. So when Texas Instruments sent their December 2015 newsletter entitled Wireless MCU spans 20 km on a coin cell, I decided to have a look, and the company’s CC1310 wireless Cortex-M3+M0 MCU based on a proprietary sub GHz technology also claims to last 20-year on a coin cell for applications such as grid communication infrastructure and heat and water meters. SimpleLink CC1310 key features: Microcontroller – ARM Cortex-M3 @ up to 48 MHz with up to 128KB programmable flash, 8KB DRAM for cache/general purpose, 20KB Ultralow Leakage SRAM Sensor Controller – Ultralow power and autonomous; 16-Bit Architecture; 2KB of Ultralow Leakage SRAM for code and data RF core Cortex M0 core with 4KB RAM, and ROM Data […]

November 13, 2015March 7, 2019 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Ambiq Micro Apollo Low Power MCUs Promise Cortex M4F Performance at Cortex M0+ Energy Efficiency

Ambiq Micro is a US company founded in 2010 that focuses on “extremely low power” semiconductors leveraging their patented Subthreshold Power Optimized Technology (SPOT) platform. Earlier this year, they announced their first low power Cortex-M4F MCU Apollo family with claims of 5 to 10 times lower power consumption compared to other micro-controllers with the same performance. According to an EETimes article, they’ve at least partially backed their claims with a live demonstration at ARM TechCon 2015. Before checking out the test results, let’s have a look at the main features of Apollo MCU family: 32-bit ARM Cortex-M4F processor @ up to 24 MHz, with FPU, and wake-up interrupt controller with 12 interrupts Up to 512KB flash, 64-KB low-leakage RAM “Rich set of timing peripherals” Peripherals I2C/SPI master; I2C/SPI; UART; 10-bit, 13-channel, 1MS/s ADC Temperature sensor with ±2°C accuracy Voltage Range – 1.8 to 3.8V Power Consumption: active mode: 30µA/MHz (executing […]