Nordic Thingy:53 is a dual-core Arm Cortex-M33 platform for IoT prototyping

Nordic Thingy:53

As one should have expected after Nordic Thingy:52 and Thingy:91 IoT devkits were introduced in 2017 and 2019 respectively, the Norwegian company has now launched the Thingy:53 platform based on Nordic Semi nRF5340 dual-core Arm Cortex-M33 SoC for IoT prototyping with Bluetooth Low Energy, Thread, Matter, Zigbee, IEEE 802.15.4, NFC, and Bluetooth mesh RF protocols. The development kit also incorporates the nPM1100 PMIC and nRF21540 Front End Module (FEM), a power amplifier/low noise amplifier (PA/LNA) range extender, as well as multiple motion and environmental sensors, as well as a rechargeable 1350 mAh Li-Po battery for power. Nordic Thingy:53 specifications: SoC – Nordic Semi nRF5340 SoC with 128 MHz Arm Cortex-M33 Application core with 1 MB Flash + 512 KB RAM, and a 64 MHz Arm Cortex-M33 Network core with 256 KB Flash + 64 KB RAM Wireless connectivity RF front-end nRF21540 FEM Protocols – Bluetooth LE, Bluetooth Mesh, NFC, Thread/Zigbee, […]

u-blox MAYA-W2 IoT module offers dual-band WiFi 6, Bluetooth LE 5.2, and Zigbee/Thread connectivity

u-blox MAYA-W2

u-blox MAYA-W2 is a tri-radio IoT module supporting dual-band WiFi 6, Bluetooth Low Energy 5.2, and IEEE 802.15.4 (Thread and Zigbee) connectivity based on the NXP IW612 or IW611 chipset introduced last January. The module is offered with a PCB antenna, u.FL connectors, and/or antenna pins, supports up to 600 Mbps link speed, and targets industrial and consumer mass-market applications in industrial automation, smart building & energy management, healthcare, smart home, and more. u-blox MAYA-W2 highlights: Wi-Fi 6 802.11ax dual-band 2.4 and 5 GHz Up to 600 Mbit/s throughput Output power EIRP – 18 dBm Operation modes: Access point (up to 16 stations), station, Wi-Fi direct (combinations) Bluetooth 5.2 Dual-mode Bluetooth classic and Bluetooth Low Energy 5.2 LE Audio Output power EIRP – 20 dBM Bluetooth profiles and services – Bluetooth HCI 802.15.4 radio Supports Thread and Zigbee Support for the Matter protocol Variants with PCB-antenna, U.FL connectors, and antenna […]

FOSDEM 2022 schedule with embedded Linux, IoT, automotive… sessions

FOSDEM 2022

While typically taking place in Brussels, Belgium, FOSDEM 2022 will take place online just like FOSDEM 2021 due to COVID-19 restrictions. The good news is that it means anybody can attend it live from anywhere in the world, and makes it more like “FOSDIM”, replacing European with International, in “Free and Open Source Developers’ European Meeting”. FOSDEM 2022 will take place on February 5-6 with 637 speakers, 718 events, and 103 tracks. I’ve made my own little virtual schedule below mostly with sessions from the Embedded, Mobile and Automotive devroom, but also other devrooms including “Computer Aided Modeling and Design”, “FOSS on Mobile Devices”, “Libre-Open VLSI and FPGA”, and others.   Saturday, February 5, 2022 12:30 – 13:00 – Five mysteries in Embedded Linux by Josef Holzmayr Once you start out in embedded Linux, there is a lot to do. Some things are obvious, some less so. First and foremost, […]

Silicon Labs BG24 and MG24 2.4 GHz wireless MCU’s quadruple AI performance at a fraction of the energy

Silicon Labs BG24 & MG24 block diagram

Machine Learning is getting everywhere including into 2.4GHz wireless microcontrollers with SIlicon Labds BG24 Bluetooth and MG24 multi-protocol Cortex-M33 microcontrollers that improve AI/ML performance by 4 times using 1/6th of the energy thanks to a built-in AI accelerator. That makes the new microcontrollers suitable for battery-powered edge AI devices with support for Matter (coming soon) as well as PSA Level 3 Secure Vault protection. Silicon Labs expects the chips to be found in various smart home, medical and industrial applications. BG24 and MG24 share the same block diagram and the same specifications apart from the supported wireless protocols: MCU core – Arm Cortex-M33 @ 78.0 MHz with DSP instruction and floating-point unit Memory – Up to 256 kB RAM data memory Storage – Up to 1536 kB flash program memory Wireless CPU – Arm Cortex-M0+ 2.4 GHz Radio Performance -104.5 dBm sensitivity @ 250 kbps O-QPSK DSSS -104.9 dBm sensitivity […]

Home Assistant Amber – A Raspberry Pi CM4 based automation gateway (Crowdfunding)

Home Assistant Amber

The team behind the popular Home Assistant open-source home automation framework has just launched their second hardware with Home Assistant Amber automation gateway based on Raspberry Pi CM4 module. This follows last year’s ODROID-N2+ based Home Assistant Blue which was a limited edition and has now been discontinued, albeit still supported. The carrier board for Home Assistant Amber is designed from scratch and notably includes Silicon Labs MGM210P Mighty Gecko Module with support for Zigbee 3.0, OpenThread, and Matter (Soon), as well as M.2 socket that can take an NVMe SSD, or an AI accelerator card. Home Assistant Amber specifications: Supported SoM – Raspberry Pi Compute Module 4 (CM4) with Broadcom BCM2711 quad-core Cortex-A72 processor @ 1.5 GHz, up to 8GB RAM, up to 32GB storage. (Note: optional WiFI 5 and Bluetooth 5.0 connectivity not covered by regulatory approval) Storage – Support for NVMe SSD via M.2 socket, bootable for […]

Coin cell-powered OpenThread sensor board can send data every 20 seconds for three years

Thread Sensor Tag Openthread board

Monkey Store’s Thread Sensor Tag is a pressure, humidity, temperature, and light sensor that connects to the OpenThread network, and is capable of transmitting MQTT/UDP data every 20 seconds over a period of around three years from a single coin cell battery. As a reminder, OpenThread is an implementation of the Thread IoT network protocol that was unveiled in 2016 by Nest Labs (now Google/Alphabet). This has not been widely used so far, but we did write about MKR SharkyPro development board with OpenThread support via STMicro STM32WB5MMG wireless module earlier this year, and Monkey Store is telling us both Google and Apple are working on devices with support for the IoT protocol. Thread Sensor Tag specifications: Wireless module – Minew MS88SF2 based on Nordic Semi nRF52840 multi-protocol 2.4GHz wireless Cortex-M4 microcontroller Sensor VEMLS6030 I2C light sensor MS8607 pressure, humidity, and temperature sensor I/Os – 7x through holes with Tx/Rx, […]

ESP32-H2 RISC-V WiSoC announced with Zigbee 3, Thread, and Bluetooth LE 5.2

ESP32-H2 with Thread, Zigbee 3, BLE 5.2

Just a few days ago, we noted ESP32-H2 802.15.4 & BLE RISC-V SoC had shown up in the source code, and tried to derive specs and a block diagram from the info seeing it was similar to ESP32-C3, but swapping the WiFi radio for an 802.15.4 radio. We don’t need to guess anymore, as Espressif Systems has just announced ESP32-H2 RISC-V WiSoC with support for Zigbee 3.x, Thread 1.x through the 802.15.4 radio, as well as Bluetooth LE 5.2. So overall it’s very close to what we discussed from the information in the source code with ESP32-H2 highlights including: CPU – 32-bit RISC-V core (at up to 96 MHz) RAM – 256 KB SRAM Storage – External flash support Wireless connectivity IEEE 802.15.4 radio with Zigbee 3.x and Thread 1.x support, Matter protocol Bluetooth 5.2 (LE) radio designed in-house, with support for direct connection, Bluetooth Mesh, Bluetooth LE Audio Future […]

ESP32-H2 Bluetooth LE & 802.15.4 RISC-V SoC shows up in ESP-IDF source code

ESP32-H2

Espressif Systems is working on yet another RISC-V chip with ESP32-H2 SoC offering Bluetooth LE and 802.15.4 connectivity showing up in the ESP-IDF framework source code. A code comparison shows ESP32-H2 is very similar to ESP32-C3 with a single RISC-V core, albeit clocked at up to 96 MHz, and the first Espressif SoC without WiFi, as the WiFi radio is replaced with an 802.15.4 radio for Thread, Zigbee, etc… that can be used for the development of Home Automation, Smart Lighting, and wireless sensor network applications. While looking at the source code differences between ESP32-C3 and ESP32-H2, the really only major differences were the 802.15.4 radio and lower maximum frequency, and at the current time, it looks like most of the rest is unchanged, so it’s possible they kept the same amount of RAM (400KB), storage, and most of the same peripherals, but it could just well be the code […]

RISC-V laptop, mini PC