BBC micro:bit v2 board Unveiled with Nordic nRF52833 SoC, Microphone and Speaker

The original BBC micro:bit educational board was launched in July 2015 with a Nordic nRF51822 Arm Cortex-M0 MCU @ 16 MHz providing Bluetooth LE connectivity,  a few I/Os, some buttons, and a LED matrix acting as a small display. The British company has now launched a new update with BBC micro:bit v2 with the same form factor, but equipped with a more powerful Nordic Semi nRF52833 Bluetooth 5.1 Arm Cortex-M4 MCU clocked at 64 MHz and adding a microphone and a speaker. BBC micro:bit v2 specifications: Wireless MCU – Nordic Semi nRF52833 Arm Cortex-M4 MCU clocked at 64 MHz with 128 KB RAM, 512 KB flash, Bluetooth 5.1 LE connectivity “Display” – 25x red LED indicator lights in a 5×5 matrix USB – 1x micro USB port for power and programming via NXP Kinetis KL27Z Cortex-M0+ microcontroller Audio – Built-in MEMS microphone and speaker Expansion 25 pins on edge connector with 4 dedicated GPIO, PWM, I2C, SPI etc… 5x rings […]

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NXP IW620 2×2 Wi-Fi 6 & Bluetooth 5.1 Chip Targets Gaming, Audio, Industrial and IoT Markets

NXP has announced the IW62X WiFi 6 & Bluetooth 5.1 family of chips designed for high-end gaming, audio, industrial and IoT markets. The family currently consists of IW620 and IW620S parts with respectively PCIe and SDIO host interfaces. Both chips integrate dual-band Power Amplifiers (PAs), Low Noise Amplifiers (LNAs), and switches in order to reduce the board-level BOM (Bill of Materials). IW62X key features and specifications: Wi-Fi 6 (802.11ax) 2×2 Wi-Fi 6 DB (802.11ax) 1024 QAM, 80MHz Peak Throughput: 1.2 Gbps Improved wideband noise & MU-MIMO performance Advanced active channel scanning 802.11s, EasyMesh 802.11mc Bluetooth & Bluetooth Low Energy 5.1 BLE 2Mbps + Long Range BLE direction finding with Angle of Arrival (AoA) and Angle of Departure (AoD) BLE Mesh Antenna support 2×2 5G 1×1 2.4G + BT Multimode energy-efficient support (TWT, Micro AP, TX Power Control, Wi-Fi Direct, BT5.1) Host Interfaces IW620 – PCIe 1.0 IW620S – SDIO 3.0 UART for Bluetooth only I2S/PCM audio Power Supply Integrated PMIC […]

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Amazon Sidewalk – A Low Bandwidth Network For Connecting Smart Devices and IoT

In 2019, Amazon introduced the Sidewalk with privacy and security at the core. Amazon Sidewalk a low-bandwidth, long-distance wireless protocol that is expected to provide a new way for devices to stay connected especially when smart devices leave their WiFi or Bluetooth coverage range by leveraging the 900 MHz spectrum. Amazon Sidewalk will most likely be an LPWAN type network since it is promising neighborhood-like device connectivity with is crowdsourcing initiative. It uses Bluetooth Low Energy (BLE) for short distances, the 900 MHz spectrum, and other frequencies for longer distance coverage. Sidewalk attempts to make sure your BLE devices can still connect to your home network even when you take a walk away from your home. According to Amazon, users can easily access the Sidewalk network using two types of devices: Sidewalk Bridges and Sidewalk-enabled devices. Amazon has now announced that compatible Echo devices can now act as bridges and also some selected Ring Floodlight and Spotlight Cams will also be supported […]

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Silicon Labs Introduces Bluetooth 5.2 BGM220S SiP and BGM220P PCB Module

Silicon Labs has recently announced two hardware modules based on the company’s BG22 secure Bluetooth 5.2 SoC, namely BGM220S System-in-Package (SiP) measuring just 6x6mm, and BGM220P, a slightly larger PCB variant optimized for wireless performance along with a better link budget for greater range. Both modules can be integrated into products with up to 10-year battery life from a single coin cell. All BGM220S/P variants can support Bluetooth Direction Finding and some of the parts can also handle Bluetooth Mesh Low Power protocol. Silicon Labs BGM220S/P key features: Wireless SoC – Silicon Labs EFR32BG22  Arm Cortex-M33 with DSP instructions and floating-point unit, up to 512 kB Flash, 32 kB RAM, 2.4 GHz radio with TX power up to 8 dBm, and Embedded Trace Macrocell (ETM) for advanced debugging Supported Protocols Bluetooth Low Energy (Bluetooth 5.2) Direction-finding Bluetooth mesh Low Power Node Various MCU peripherals include ADC, up to 25x GPIOs, DMS, PWM, I2C, UART, PDM (mic), etc… See EFR32BG22 specifications […]

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Nordic Semi nRF21540 RF front end module Extends the Range of nRF52/nRF53 Bluetooth SoC’s

A little while ago, we wrote about RFCat N32 board integrating Meshtek-H52 module with nRF52832 2.4GHz multi-protocol SoC and a Skyworks power amplifier increasing power by up to 30 times to extend the wireless range to up to 200 meters. It turns out Nordic Semi outed its own range extender module late last year with nRF21540 RF front end module (FEM) that integrates a power amplifier (PA) and low noise amplifier (LNA) optimized to boost the link budget of the nRF52 and nRF53 multi-protocol wireless SoCs. nRF21540 key features and specifications: Supported wireless standards Bluetooth Low Energy (incl. Bluetooth mesh) Thread and Zigbee (802.15.4) Proprietary 2.4 GHz Output Power – Adjustable in small increments up to +21 dBm Receive Gain – +13 dB with 2.5 dB noise figure Antennas – 2x antenna ports for antenna diversity Host Interface – I/Os, SPI, or a combination Supply Voltage – 1.7 V to 3.6V Current consumption Tx tuned to +20 dBm: 115 mA […]

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IoTSDR Linux Board Targets the Development of IoT Gateways with Standard or Custom IoT Protocols (Crowdfunding)

Xilinx Zynq-7010/-7020 powered iotSDR board by EmbedINN enables the development of IoT gateways with support for LoRa, SigFox, WeightLess, Bluetooth, BLE, 802.15.4, ZigBee, as well as custom IoT protocols. The board also supports GPS, Galileo, Beidou, and GLONASS navigation systems thanks to a Maxim Integrated MAX2769 GNSS chip. iotSDR key hardware features and specifications: SoC (one or the other) Xilinx Zynq-Z7010 (XC7Z010-1CLG400C) dual-core Arm Cortex-A9 processor with 256 kb on-chip memory, FPGA fabric with 28,000 logic cells, 17,600 LUTs, 2.1 Mb block RAM, 80 DSP slices Xilinx Zynq-Z7020 (XC7Z020-1CLG400C) dual-core ARM Cortex-A9 processor with 256 kb on-chip memory, FPGA fabric with 85,000 logic cells, 53,200 LUTs, 4.9 Mb block RAM, 220 DSP slices System Memory – 512 MB DDR3 Storage 128 Mbit QSPI flash memory for firmware Microchip AT24MAC602 SPI EEPROM for RF transceiver MCU firmware and data Radios “IoT” Radios RF Transceivers – 2x Microchip/Atmel AT86RF215 European band – 863-870 MHz / 870-876 MHz / 915-921 MHz Chinese band […]

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Espressif and Amazon Introduce ESP32-PICO-V3-ZERO Alexa Connect Kit Module

Espressif Systems & Amazon have recently announced ESP32-PICO-V3-ZERO Alexa Connect Kit (ACK) module providing out-of-box connectivity to ACK cloud services, support for features such as Alexa control, “Frustration-Free Setup” and Amazon Dash replenishment for connected devices. The tiny (23 x 16 x 2.3mm) module is based on the company’s ESP32-PICO-V3 System-in-Package (SiP) based on ESP32-V3 dual-core Xtensa LX6 WiFI and Bluetooth SoC, a 4 MB SPI flash, a crystal oscillator, filter capacitors, and an RF matching network. The module supports 2.4 GHz 802.11 b/g/n WiFi, Bluetooth, and Bluetooth Low Energy connectivity and comes with a PCB antenna and a u.FL connector to plug in an external antenna [Update: That should be an RF test connector instead, see comments]. ESP32-PICO-V3-ZERO module interfaces to a host MCU through a UART interface, and to speed-up time-to-market the module comes pre-certified for regulatory certifications such as FCC, CE, SRRC, IC, and RCM. The module comes pre-programmed with the ACK module firmware managed by Amazon […]

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Nordic nRF52820 Bluetooth 5.2 SoC Supports Thread, Zigbee and Full Speed USB 2.0

Nordic Semi has launched the sixth multi-protocol SoC part of their nRF52 family with nRF52820 Bluetooth 5.2 ultra low power System-on-Chip (SoC) supporting  Bluetooth Low Energy (Bluetooth LE), Bluetooth mesh, as well as Thread, Zigbee, and 2.4-GHz proprietary. nRF52820 can handle all Bluetooth 5/5.1/5.2 versions with features such as Long Range, 2 Mbps throughput, direction finding, LE power control, and LE isochronous channels. The SoC also happens to include a Full Speed (12 Mbps) USB 2.0 interface. nRF52820 key features and specifications: MCU Core – Arm Cortex-M4 @ 64 MHz Memory – 32 KB RAM Storage – 256 KB Flash Wireless Connectivity Bluetooth 2 Mbps, 1 Mbps, Long Range Bluetooth Low Energy Bluetooth Direction Finding Bluetooth mesh Thread, Zigbee 802.15.4/ANT/2.4 GHz proprietary Up to +8 dBm TX power Security – 128-bit AES encryption USB – Full Speed USB 2.0 Other Peripherals UART, 2x SPI/TWI, QDEC Analog comparator 4x 32-bit timer/counter, 2x 24 real-time counter, PPI, GPIOTE, temp sensor, WDT, RNG […]

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