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Posted on by Jean-Luc Aufranc (CNXSoft) - 4 Comments on Nordic Semi nRF52840 vs nRF52832 vs nRF52810 Comparison for Bluetooth 5 Applications

Nordic Semi nRF52840 vs nRF52832 vs nRF52810 Comparison for Bluetooth 5 Applications

Bluetooth 5 was formally introduced earlier this year with promises of four times the range, and twice the speed. Several companies offer chips that are compatible with the new standard, and among them Nordic Semi offers Bluetooth 5 ready solutions via nRF52840, nRF52832, nRF52810 Bluetooth SoCs. However, if you thought – like I did – that all three would provide the same Bluetooth 5 support with just some differences in memory, storage and performance, a comparison table put together by Raytac Corporation will show that among the three SoCs only nRF52840 will support the longer range, while the two older SoC only support the extra bandwidth offered by Bluetooth 5. I could find a blog post about a long range demo that confirms the above: Two nRF52840 Preview Development Kits (PDK) or nRF52832 Development Kits. A combination of the two different kits can also be used. Notice that if the […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 8 Comments on Bluetooth Low Energy Now Supports Mesh Networking for the Internet of Things

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 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Flic Hub Controls WiFi, Bluetooth, and IR Devices with Bluetooth LE Buttons (Crowdfunding)

Flic Hub Controls WiFi, Bluetooth, and IR Devices with Bluetooth LE Buttons (Crowdfunding)

This week-end, I wrote about 1btn open source WiFi button that can allow you directly control WiFi appliances, and/or set scenes without the need for a smartphone. We also discussed limitations of WiFi due to high power consumption, security issues and the one-way aspect of RF communication, and that Bluetooth 5 may be a better option for range and battery life if possible. Flic Hub is another way to approach the issue, as it combines Bluetooth LE buttons with a gateway supporting WiFi, Bluetooth, and infrared. Flic Hub gateway specifications: Connectivity – Bluetooth Classic, Bluetooth LE, WiFi, Ethernet, IR via optional add-on accessory. Audio – 3.5mm audio out/mic in Power Supply – 5V via micro USB Power Consumption – 1.5W typ. Security – SPARKE2+ Bluetooth encryption Dimensions – 85 x 50 x 15 mm Weight – 99 grams Users can configure workflows by setting up Flic with IFTTT, Zapier, Microsoft […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on $29 Bluey nRF52832 BLE & NFC Development Board Comes with Temperature, Humidity, Light, and Motion Sensors

$29 Bluey nRF52832 BLE & NFC Development Board Comes with Temperature, Humidity, Light, and Motion Sensors

Electronut Labs, a startup based in Bangalore, India, has designed Bluey board powered by Nordic Semi nRF52832 Bluetooth LE SoC, and equipped with 3 sensor chips reporting temperature, humidity, light intensity, and acceleration data. Bluey board specifications: SoC – Nordic Semi nRF52832 ANT + BLE ARM Cortex-M4 @ 64 MHz processor with 512kB flash, 64kB RAM Storage – Micro SD slot Connectivity – Bluetooth 4.2/5 LE and other proprietary 2.4 GHz wireless standards via PCB Antenna, NFC via PCB antenna Sensors TI HDC1010 Temperature/Humidity sensor APDS-9300-020 ambient light sensor ST Micro LSM6DS3 accelerometer Expansion Header – 18-pin header with GPIO, 5V, 3.3V, and GND Debugging – CP2104 USB interface; 6-pin SWD header Misc – CREE RGB LED; 2 push buttons; coin cell holder; on/off witch; external / battery power jumper Power Supply – 5V via micro USB port, up to 6V battery voltage via 4-pin header The board is partially […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Qualcomm Snapdragon Wear 1200 Platform for Wearables Supports LTE Cat M1 and NB1 (NB-IoT)

Qualcomm Snapdragon Wear 1200 Platform for Wearables Supports LTE Cat M1 and NB1 (NB-IoT)

After Snapdragon Wear 2100 and 1100 launched last year , Qualcomm has announced a new Snapdragon Wear 1200 platform still designed for wearables, but with lower power consumption, less processing power, a more compact package, and built-in support for LTE IoT communications standards such as LTE Cat M1 and LTE NB-IoT (Cat NB1).   Qualcomm Snapdragon Wear 1200 key features and specifications: CPU – ARM Cortex A7 @ 1.3 GHz Memory / Storage – Support for discreet or MCP NAND and LPDDR2 Display – Support via SPI for simple UI and displays Modem Global multi-mode supporting Cat-M1 / NB1 / E-GPRS. Supports LTE FDD and TDD for Cat-M1 and E-GRPS and FDD only for Cat-NB1 Up to 300 kbps downlink and 350 kbps uplink for Cat-M1 10 kbps download and 60 kbps upload speeds for Cat-NB1 Integrated voice support for VoLTE Other Connectivity – Pre-integrated support for Qualcomm 11ac Wi-Fi […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Intrinsyc Open-Q 835 Development Kit Features Qualcomm Snapdragon 835 Processor, Support Android 7 and Windows 10

Intrinsyc Open-Q 835 Development Kit Features Qualcomm Snapdragon 835 Processor, Support Android 7 and Windows 10

Intrinsyc has just launched one of the first development boards powered by Qualcomm Snapdragon 835 processor with their Open-Q 835 devkit equipped with 4GB LPDDR4x, 128GB UFS 2.1 flash, 802.11ad WiFi, dual camera support and more. Open-Q 835 development kit is comprised of a “processor board” and a baseboard with the following specifications: Processor Board SoC – Qualcomm Snapdragon 835 (APQ8098) octa-core processor with four high performance Kryo 280 cores @ 2.20 GHz/ 2.30 GHz (single core operation), four low power Kryo cores @ 1.9 GHz, Adreno 540 GPUwith  OpenGL ES 3.2, OpenCL 2.0 Full support, and Hexagon 682 DSP with Hexagon Vector eXtensions (dual-HVX512) System Memory – 4GB LPDDR4x RAM Storage – 128GB UFS2.1 Gear3 2 lane Flash Connectivity Wi-Fi 802.11a/b/g/n/ac 2.4/5Ghz 2×2 Bluetooth 5.0 + BLE WiGig60 802.11ad with on-board antenna Dimensions – 70 x 60 mm Carrier Board Display – 1x HDMI 2.0 out up to 4K Ultra […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 3 Comments on Olimex ESP32-EVB Board with Ethernet, CAN Bus, and Relays up for Sale for 26 Euros

Olimex ESP32-EVB Board with Ethernet, CAN Bus, and Relays up for Sale for 26 Euros

One of the new feature of Espressif ESP32 SoC over ESP8266 is the inclusion of an Ethernet MAC interface, but so far few boards come with an RJ45 jacks. ESP32 Monster board is an option, also including an OLED Display and CAN Bus, and sold on Tindie for $35, but Olimex has now stocked their ESP32-EVB board with Ethernet, CAN Bus, and two relays, and you can purchase it for 26 Euros per unit, and less in larger quantities. Olimex ESP32-EVB Rev. B specifications: Wireless Module – ESP32-WROOM32 module with 802.11 b/g/n WiFi and Bluetooth LE Wired Connectivity – 10/100M Ethernet with RJ45 jack (via LAN8710A) External Storage – micro SD slot Relays – 2x 10A/250VAC relays with LED status Expansion 40-pin GPIO female header (2.54mm pitch) UEXT connector for sensors and modules CAN Bus USB – 1x micro USB port for debugging (CH340T) and power Misc – Reset and […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 3 Comments on STMicro Unveils STM32L4 Discovery Kit for IoT with WiFi, BLE, NFC, Sub-GHz RF, and Plenty of Sensors

STMicro Unveils STM32L4 Discovery Kit for IoT with WiFi, BLE, NFC, Sub-GHz RF, and Plenty of Sensors

STMicro has recently introduced B-L475E-IOT01A Discovery kit powered by STM32L4 Cortex-M4 and targeting IoT nodes with a choice of connectivity options including WiFi, Bluetooth LE, NFC, and sub-GHZ RF at 868 or 915 MHz, as well as a long list of various environmental sensors. B-L475E-IOT01A Discovery kit key features and specifications: MCU – STM32L4 Series MCU based on ARM Cortex -M4 core with 1 MB Flash memory, 128 KB SRAM Storage – 64 Mbit (8MB)  Quad-SPI Flash memory (Macronix) Connectivity Bluetooth 4.1 LE module (SPBTLE-RF) Sub-GHz (868 or 915 MHz) low-power-programmable RF module (SPSGRF-868 or SPSGRF-915) Wi-Fi module based on Inventek ISM43362-M3G-L44 (802.11 b/g/n compliant) Dynamic NFC tag based on M24SR with its printed NFC antenna Sensors 2x digital omni-directional microphones (MP34DT01) Capacitive digital sensor for relative humidity and temperature (HTS221) 3-axis magnetometer (LIS3MDL) 3D accelerometer and 3D gyroscope (LSM6DSL) 260-1260 hPa absolute digital output barometer (LPS22HB) Time-of-Flight and gesture-detection […]

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