bluetooth

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Tiny Silicon Labs BG29 Bluetooth LE SoC measures just 2.8 x 2.6mm for wearables and sensors

Tiny Silicon Labs BG29 Bluetooth LE SoC measures just 2.8 x 2.6mm for wearables and sensors

Silicon Labs BG29 vs coin cell battery

Yesterday, we wrote about the world’s smallest microcontroller (TI MSPM0C1104), which measures just 1.38mm2 in its smallest package. However, it is designed for general-purpose applications without built-in wireless connectivity. If you need Bluetooth LE in a tiny form factor, Silicon Labs BG29 wireless SoC, with a 2.8x 2.6mm package, is worth a look. The BG29 features a Cortex-M33 core clocked at up to 76.8 MHz, up to 256KB SRAM, up to 1MB flash, various digital and analog peripherals, and security features that make it suitable for Bluetooth LE applications such as wearable health and medical devices, asset trackers, and battery-powered sensors. Silicon Labs BG29 (EFR32BG29) specifications: CPU core – Arm Cortex-M33 @ 76.8 MHz with DSP instruction and floating-point unit Memory – Up to 256 kB RAM data memory Storage – Up to 1 MB flash program memory Wireless – 2.4 GHz radio Protocols – Bluetooth 5.4 Low Energy (LE) […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 4 Comments on STMicro STM32WBA6 2.4 GHz wireless MCU gets up to 2MB flash, 512KB SRAM, USB OTG, and more

STMicro STM32WBA6 2.4 GHz wireless MCU gets up to 2MB flash, 512KB SRAM, USB OTG, and more

STM32WBA6 block diagram

STMicro had two announcements yesterday. I’ve already covered the launch of the ultra-low-power STM32U3 microcontroller family, so today, I’ll check the new 100 MHz STM32WBA6 Cortex-M33 wireless MCU family with 2.4GHz radios for Bluetooth LE 6.0, Zigbee, Thread, and Matter designed for wearables, smart home devices, remote weather sensors, and more. The STM32WBA6 is an evolution of the STM32WBA family introduced last year, especially of the STM32WBA54 and STM32WBA55 with many of the same features SESIP (Security Evaluation Standard for IoT Platforms) Level 3 security certification, but gets more memory and flash with up to 512KB of SRAM and up to 2MB of flash. The new  STM32WBA6 family also gains a High-Speed USB OTG interface and extra digital interfaces such as three SPI ports, four I2C ports, three USARTs, and one LPUART. STMicro STM32WBA6 key features and specifications: MCU core – Arm Cortex-M33 at 100MHz with FPU and DSP Memory […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 4 Comments on The One Smart AI Pen – A ballpoint pen with Bluetooth and a microphone for translation, LLM integration, note taking (Crowdfunding)

The One Smart AI Pen – A ballpoint pen with Bluetooth and a microphone for translation, LLM integration, note taking (Crowdfunding)

The One Smart AI Pen

You may have seen the “Sell me that pen. It’s AI-powered” meme if you are a social media user. It may have started as a joke, but Zakwan Ahmad made the meme become reality with “The One Smart AI Pen” which is basically a standard ballpoint pen with a battery, Bluetooth connectivity, a microSD card, and a microphone. The AI part is not exactly inside the pen per se, but in a smartphone’s app called Hearit.ai that allows the user to translate his/her voice input, use a range of LLMs such as ChatGPT, recording a meeting, or taking notes, for example, to schedule events or meetings. The One Smart AI Pen specifications: “AI chip” –  Not clear why it’s needed here… unless it transcribes audio into text inside the pen (as opposed to inside the phone) Storage – MicroSD card slot inside the pen Wireless – Bluetooth 5.2 with up […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 4 Comments on ESP32-C2 v2.0 wireless SoC adds 20 KB of additional SRAM, 100 KB of extra flash

ESP32-C2 v2.0 wireless SoC adds 20 KB of additional SRAM, 100 KB of extra flash

ESP32-C2 v2.0

Espressif ESP32-C2 (ESP8684) has been updated to v2.0 with 20 KB of additional SRAM, 100 KB of extra flash, with some improvements in terms of erase and program performance. The ESP32-C2 was first unveiled in April 2024 with limited details, and launched in October of the same year as the ESP8684 SiP combining ESP32-C2 die with 4MB flash, as well as a few ESP8684 modules and the ESP8684-DevKitM-1 development board. The ESP32-C2 is meant to be a cost-down version of the ESP32-C3 with less RAM and peripherals, and the ESP32-C2 v2.0 slightly improved on that with parts adding X to the name: ESP8684H2X (2MB flash) and ESP8684H4X (4MB flash). Modules and devkit names are also impacted, albeit not shown yet in the screenshot below. The part names had to be updated because chip revision v2.0 and previous chip revisions are not software-compatible, so Espressif had to update the ordering codes […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 4 Comments on Citronics built a router based on the Fairphone 2 mainboard

Citronics built a router based on the Fairphone 2 mainboard

Destore Citronics Fairphone 2 industrial gateway

Belgium-company Citronics has designed a router based on the mainboard of the Fairphone 2 smartphone, connecting the Qualcomm Snapdragon 801 “system-on-module” to a carrier board with Ethernet, USB ports, and other connectors, while leveraging 4G LTE, WiFi, and Bluetooth connectivity from the phone’s core board. Citronics calls this type of hardware “Circular Microcomputers,” which refers to small computers focusing on sustainability and circular economy principles using parts from discarded devices like old smartphones. There’s actually more than one router, as Citronics designed its own development kit, and also partnered with other companies to design custom gateways based on the Fairphone 2 mainboard. Let’s have a look at the devkit first. Citronics devkit: Fairphone 2 mainboard SoC – Qualcomm Snapdragon 801 (MSM8974AB) quad core Krait 400 processor @ up to 2.26 GHz with Adreno 330 GPU System Memory – 2 GB LPDDR3 Storage – 32GB eMMC flash Connectivity – 2G/3G/4G LTE, […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Silicon Labs MG26 development kits and SoCs are now available for Matter and multiprotocol Smart Home applications

Silicon Labs MG26 development kits and SoCs are now available for Matter and multiprotocol Smart Home applications

xG26 PK6028A MG26 development kit

Silicon Labs MG26 is a new family of Arm Cortex-M33 wireless SoCs designed for Matter or multiprotocol Smart Home applications that provide an update to the MG24 with more memory and storage, additional GPIO, a 4×40 LCD controller, and an integrated AI/ML accelerator. We first covered the new wireless microcontroller family in April 2024, but the company has now published a new press release announcing the general availability of the MG26 microcontrollers, and I also noticed some development kits were now available, so we’ll check those out in this post. Silicon Labs MG26 specifications A reminder of the SoC specifications with highlights in bold showing the improvements or differences against the MG24 family: MCU core – Arm Cortex-M33 @ 78.0 MHz with DSP instruction and floating-point unit Memory – Up to 512 kB RAM data memory Storage – Up to 3200 kB flash program memory AI/ML accelerator – Matrix Vector […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 6 Comments on GEEKOM A6 Review – Part 3: Ubuntu 24.04 tested on an AMD Ryzen 7 6800H mini PC

GEEKOM A6 Review – Part 3: Ubuntu 24.04 tested on an AMD Ryzen 7 6800H mini PC

review GEEKOM A6 Ubuntu 24.04

We’ve already checked out the hardware of the GEEKOM A6 mini PC with an unboxing and teardown in the first part of the review, and thoroughly tested the AMD Ryzen 7 6800H mini PC in Windows 11 Pro in the second part, so it’s now time to report our experience with Ubuntu 24.04 Linux on the mid-range mini PC. We’ve gone through features testing, system benchmarks, storage (SSD and USB) performance tests, 2.5GbE and WiFi 6 network evaluation, 4K and 8K YouTube video playback, a stress test to check out the cooling ability of the mini PC, and finally fan noise and power consumption measurements. Ubuntu 24.04 installation and system information Since we wanted to install Ubuntu 24.04.1 LTS alongside Windows 11 Pro, we resized the partition by roughly half. But since the C: drive was “BitLocker Encrypted”, we knew Ubuntu installation wouldn’t be successful that way, so we went to […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 19 Comments on GoogleFindMyTools locates ESP32-based Bluetooth trackers using Google Find My Device network

GoogleFindMyTools locates ESP32-based Bluetooth trackers using Google Find My Device network

Google Find My Device ESP32

Leon Böttger’s GoogleFindMyTools is a re-implementation of Google’s Find My Device network. It works with Android devices and commercial trackers, but experimental support for ESP32-based trackers has recently been added.

The implementation features two components. First, the main.py Python script that will list and locate devices, and then the ESP32 firmware implemented in C with the ESP-IDF. The host computer will also need several Python libraries that can be installed with “pip install -r requirements.txt” and Google Chrome web browser.

This is the output of the Python script on my Ubuntu laptop:

UP 7000 x86 SBC