Nordic Semi nRF52833 WiSoC Supports Bluetooth 5.1 Direction Finding, Works up to 105ºC

nRF52833-DK

Nordic Semiconductors had added a new member to their RF52 multi-protocol wireless SoCs with nRF52833 that supports Bluetooth 5.1 direction finding and can operate in a wider temperature range between -40ºC and +105°C. The company also introduced nRF52833 DK development kit for Bluetooth Low Energy, Bluetooth mesh, Thread, Zigbee (802.15.4), and 2.4GHz proprietary applications, and some companies have already announced nRF52833 modules. Nordic Semi nRF52833 Bluetooth 5.1 SoC Key features and specifications: MCU Core – Arm Cortex-M4F @ 64 MHz Memory – 128 KB RAM Storage – 512 KB Flash Connectivity Bluetooth 5.1 @ 2 Mbps/1 Mbps/500 kbps/125 kbps 802.15.4 (Thread/Zigbee) @ 250 kbps 2.4 GHz proprietary @ 2 Mbps / 1 Mbps NFC-A tag TX power – Programmable from +8 dBm to -20 dBm in 4 dB steps Sensitivity Bluetooth 5: -103 dBm at 125 kbps; -98 dB at 500 kbps; -95 dBm at 1 Mbps; -92 dBm at 2 Mbps 802.15.4: -99 dBm at 250 kbps 2.4 GHz: …

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Blip Nordic nRF52840 Dev Board Includes STM32 Black Magic Probe Programmer & Debugger (Crowdfunding)

The Latest Electronut Labs Nordic nRF52840 Based Dev Board Electronut Labs has started its Crowd Supply campaign for Blip, a Nordic nRF52840 based development board. With many onboard sensors and systems, the boards are aimed at prototyping and projects in a wide variety of BLE and 802.15.4, wireless application scenarios.  It has a programmer and debugger built-in. Past Articles  Electronut Labs has a series of Nordic Semiconductor SoC projects previously reported on including  Papyr, a Bluetooth E-Paper Display and Bluey, a BLE Development board using the Nordic nRF52832, and CNXSoft also published an article comparing several of the Nordic SoC available in development boards for Bluetooth 5 (BLE5). The Features the Stand Out Blip has a Black magic Probe compatible programmer and debugger built-in, along with a temperature/humidity sensor, ambient light intensity sensor,  and a three-axis accelerometer.  The board is designed to prototype very low power devices and an ability to add a microSD card slot, to make it a …

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Toybrick TB-RK1808 AI Compute Stick is now Available for $86

TB-RK1808 AI Compute Stick

Last May, we wrote about RK1808 AI Compute Stick, a USB stick with Rockchip RK1808 dual-core Cortex-A35 processor also featuring a 3.0 TOPS neural processing unit to accelerate AI workloads at low power. As I understood it was available for purchase, but you had to contact a Rockchip FAE by email in order to get one. Now, you can easily buy online, getting Toybrick TB-RK1808 AI Compute Stick on Seeed Studio for $86. Just ignore the “Core i3” in the title, we’ll see why it’s there further below. TB-RK1808 AI Compute Stick specifications: SoC – Rockchip RK1808 dual-core Cortex-A35 processor with NPU AI inference performance – 3 TOPS for INT8, 300 GOPS for INT16, 100 GOPS for FP16 System Memory – 1GB LPDDR Storage – 8GB eMMC flash Host Interface – USB 3.0 type-A port Power Supply – Via USB port Dimensions – 82 x 31 x 13 mm Despite the company claiming minimal requirements are an Intel Core i3 …

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Pine64 SoEdge-RK1808 AI Module Delivers 3.0 TOPS via Rockchip RK1808 SoC

SOPINE Model A Baseboard + SoEdge-RK1808

A few weeks ago, Ameridroid reported Pine64 would soon launch SoRock and SoEdge systems-on-module, but at the time there was virtually no info except SoRock would be likely based on either RK3328 or RK3399 and work on the existing Clusterboard, while SoEdge would be an AI Neural module for Artificial Intelligence tasks, with up to 3 TeraFLOPS of performance. I did not write about it at the time, simply because there was so little information, but this morning I’ve just received some photos of SoEdge-RK1808 module fitted to a baseboard that looks to be SOPINE Model “A” carrier board. SoEdge-RK1808 SoM Let’s try to derive the specifications from the photos even though some components appear to be blurred out or just unclear: SoC – Rockchip RK1808 dual-core Cortex-A35 processor with 3.0 TOPS NPU (Neural Processing Unit) System Memory – 2GB RAM (2x 8GBit Micro DDR4-2400) but limited PC-2133 Storage – 16GB eMMC 5.1 flash (FORESEE NCEMAD9D-16G) PMIC – Rockchip RK809-2 …

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Dooba ioNode Microchip AVR Development Board Comes with a C programming SDK

Dooba ioNode

The new Dooba ioNode development board is multifunctional and can be used for projects with space limits. The board features Microchip ATMEGA1284P AVR microcontroller, Dooba’s open-source embedded development ecosystem boasts of a variety of add-on modules which provide the board with increased functionality. These modules will work perfectly with the board and with any project that supports an SPI interface. Some of these add-on modules are: An Aecho MP3 player Nomad LiPo battery Inpad user input module MicroSD socket in SIP or DIP versions The development board is available with either male or female headers. It is also shipped with an IOPROTO prototyping board. You can also choose whether you want the headers already soldered on the top, bottom, or not soldered. The ioNode also features a USB port with USB-UART for programming. Specifications of the Dooba ioNode Core CPU Clock: 10MHz Flash: 128 Kb RAM: 16 Kb I/O 29x (30x in total but one is hardwired to onboard LED) …

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Group Theoretic Cryptography (GTC) Offers an Alternative to TLS’s ECC/RSA Security for Microcontrollers

SecureRF Group Theoretic Cryptography

The Transport Layer Security (TLS), sometimes incorrectly referred as its predecessor: Secure Sockets Layer (SSL), helps securing messages over the network using symmetric cryptography, and optionally public-key cryptography (aka asymmetric cryptography). This works well in servers and computers, but with the Internet of Things, even low-power sensor nodes would benefit from secure communication. The trouble is that today’s commonly-implemented RSA- and Diffie-Hellman-type public-key protocols have a memory footprint that will not fit on resource-constrained microcontrollers systems, e.g. Arm Cortex-M0 based ones, and power consumption may also be an issue since many of those are battery-powered. I’m writing about this topic today, as there may be a better alternative for resource-constrained microcontrollers which I noticed in Arm Techcon 2019 schedule, with SecureRF Corporation’s session entitled “When it comes to connect IoT devices, how small is small?” that will present an alternative to TLS’s ECC and RSA based security that relies on in “Group Theoretic Cryptography (GTC)” designed specifically for low resource …

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96Boards RK1808 & RK3399Pro SoM & Devkit Now Available for Purchase

RK3399Pro SoM Development Kit

Back in April, we covered the very first 96Boards SoM’s (Systems-on-Module) which were based on Rockchip RK3399Pro or RK1808 processors, and targeted applications leveraging artificial intelligence acceleration. There were not quite available at the time, but Seeed Studio now has both BeiQi modules for pre-order for $119 and $59 respectively, while the carrier board goes with $125 with antennas, and power supply. Note that the RK3399Pro SoM and the carrier board are basically available now with shipping schedule for July 4th, but you’d had to wait until the end of the month for the RK1808 module. BeiQi RK1808 AIoT 96Boards Compute SoM Module specifications: SoC – Rockchip RK1808 dual-core Arm Cortex-A35  processor @ 1.6 GHz with NPU supporting 8-bit/16-bit operations up to 3.0 TOPS, TensorFlow and Caffe frameworks; 22nm FD-SOI process System Memory – 1GB LPDDR3 (I also read “4GB LPDRR3” (sic.) in other places, but the capacity is likely wrong) Storage – 16GB eMMC flash Networking – Gigabit Ethernet …

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Obsidian ESP32 Board Follows Raspberry Pi Model A Form Factor (Crowdfunding)

Obsidian ESP32 Raspberry Pi Board

When Thomas McKahan‏ had been playing with ESP32 for a while, he found the need to use Raspberry Pi HAT boards and enclosure with his new hardware,  so he went ahead and designed his own ESP32 board compatible with Raspberry Pi accessories, and following the smaller Raspberry Pi Model A / 3 Model A+ form factor. Obsidian ESP32 specifications: Wireless module – Espressif Systems  ESP32-WROVER-B 802.11 b/g/n WiFi + Bluetooth 4.2 / BLE module with 16 MB flash, 8 MB PSRAM USB – 1x micro USB port for power and programming Audio – 3.5mm TRS audio jack connected to ESP32 DACs Expansion 40-pin GPIO header compatible with popular HAT expansion boards with 3.3 V signalling,  I²S for audio DAC, I²C and SPI, Serial UART available on header or via microUSB, I²C GPIO expander with interrupts & address selection 8-pim unpopulated header from remaining I/Os accessible through GPIO expander 5-pin unpopulated header with analog inputs connecting to the ESP32’s SENSOR_VP and …

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