cnx-software.com4d ago

Upcoming ESP32-S31 dual-core RISC-V MCU offers Gigabit Ethernet, WiFi, Bluetooth, and 802.15.4 connectivity

https://fed.brid.gy/r/https://www.cnx-software.com/2026/03/24/esp32-s31-dual-core-risc-v-mcu-offers-gigabit-ethernet-wifi-bluetooth-and-802-15-4-connectivity/

Upcoming ESP32-S31 dual-core RISC-V MCU offers Gigabit Ethernet, WiFi, Bluetooth, and 802.15.4 connectivity

It looks like Espressif Systems has a new powerful wireless microcontroller in the works, with the ESP32-S31 sharing some features of the ESP32-P4 and ESP32-S3 microcontrollers. The ESP32-S31 is a dual-core RISC-V MCU with one high-performance core with FPU and SIMD instructions, and one low-power RISC-V core, featuring 62 GPIOs, a Gigabit Ethernet MAC, WiFi, Bluetooth, and 802.15.4 (Thread/Zigbee/Matter) wireless connectivity, and more. ESP32-S31 preliminary specifications: MCU subsystem RISC-V HP (High-performance) RV32IMAFCP CPU with FPU, SIMD, etc.  RISC-V LP (Low-power) MCU core Memory & Storage I/F 512 KB SRAM 32 KB RTC SRAM Support for external octal PSRAM and flash up to 64MB GPU – 2D Pixel Processing Accelerator (PPA) VPU – (M)JPEG codec support Peripherals Display I/F – Parallel LCD interface Camera I/F – MIPI-CSI with integrated ISP and parallel camera interface Audio – 2x I2S Networking Gigabit Ethernet 2.4 GHz WiFi 802.11 b/g/n Bluetooth 802.15.4 for Zigbee, Thread,

CNX Software - Embedded Systems News
Gabriele Biondo4d ago

Reverse Engineering or Necromancy? 🧟‍♂️⚖️

What do you do when the company goes dark, the app vanishes from the App Store, and your "smart" scale becomes a 100€ paperweight?

You reverse it.

I’m starting a new series on ByteArchitect about bringing the QardioBase2 back to life. No ChatGPT-farts here—just raw bluetoothd logs, GATT discovery, and the sad sight of a backend that keeps saying "cancelled."

In this first part:
- Sniffing BLE traffic on iOS (without a jailbreak)
- Mapping proprietary GATT services & characteristics
- Realizing the servers are officially dead (RIP Qardio)

If you despise planned obsolescence as much as I do, join me in this "zombie" recovery:

https://bytearchitect.io/security-reversing/Reverse-with-me-Qardio-necromancy/

#ReverseEngineering #Infosec #BLE #iOS #HardwareHacking #Obsolescence #CyberSecurity #GATT #Necromancy

Show threadtallship6d ago

@karlauerbach

Hi Karl, why don't you try asking that amazonian what a Thomas Guide is❓

#tallship #passive_listening #Industrial_surveillance #sidewalk #BLE

⛵

Habr6d ago

Массовая слежка по Bluetooth

Радиосигнал Bluetooth принимается только на близком расстоянии. Однако он не такой безопасный, как принято считать. На самом деле многие Bluetooth-устройства делают человека уязвимым для слежки. Недавно открытые уязвимости позволяют злоумышленнику выполнить скрытное сопряжение, а затем отслеживать местоположение устройства через интернет, а также использовать его как удалённый микрофон для дистанционного прослушивания. Более того, даже обычное пассивное сканирование окружающей среды — сбор «цифровых крошек» на протяжении недель — раскрывает массу приватных деталей о соседях.

https://habr.com/ru/companies/globalsign/articles/1013398/

#Bluetooth #утечка_информации #Bluehood #уязвимость #WhisperPair #Google_Fast_Pair #Find_Hub #слежка #BLE

Массовая слежка по Bluetooth

Радиосигнал Bluetooth принимается только на близком расстоянии. Однако он не такой безопасный, как принято считать. На самом деле многие Bluetooth-устройства делают человека уязвимым для слежки....

Хабр
Memo6d ago

≪ Ich werde heute den “Ernstfall” auf der Moorkatzen-Rundtour testen. ≫

Das Verhalten meiner #Pixel #Watch mit dem #Congstar - eSIM “Hack” kann schon verwirrend sein.

Zunächst einmal ist dies ja so nicht vorgesehen, sondern für eine #MultiSIM (die gleiche Rufnummer auf dem #Smartphone und der Watch) konzipiert worden. Das bedeutet auch, dass die #LTE - Verbindung auf der Watch automatisch deaktiviert (oder eingeschränkt?) wird, wenn sie sich über #BLE mit dem Handy verbindet – was im Normalfall ja auch sinnvoll ist.

Da ich aber unterschiedliche Rufnummern nutze (zwei verschiedene eSIM) kann es passieren, dass #SMS und Anrufe, wenn BLE aktiviert ist, auf der Watch nicht ankommen oder zumindest deren Ankunft nicht signalisiert wird.

Das ist zwar schade, aber zumindest für mich nicht relevant. Unterwegs funktionieren die LTE-Internetverbindung, das Empfangen von Nachrichten, und ich kann auch darauf reagieren. Ob eine SMS, die auf meine reguläre SIM (Classic) weitergeleitet wird, ankommt, habe ich noch nicht getestet.

Dafür kostet mich das Ganze dann auch nur 3 EUR/4Wochen statt 19,95 € zusätzlich zu einem bestehenden Vertrag für 29,95 €/Monat (Beispiel Telekom).

Meine regulären Kosten belaufen sich dadurch ( 3 x Congstar Prepaid wie ich will 2. Generation SIM-Karten) mit zwei eSIM (500 MB/4 Wo.) auf dem Handy und der Watch und einer Classic-SIM (2 EUR/100 SMS/Min.) auf dem Handy, auf insgesamt nur 8 EUR für vier Wochen.

Das #Smartphone bleibt heute also zu Hause. 😀

BLE VoiceMar 21

The JL JieLi AC696N series continues to be a compelling choice for high-volume, cost-sensitive Bluetooth audio applications. Looking at the AC6966B-QFN32 development board, which is a prime example of balancing features and BOM cost.

The dual-mode Bluetooth (Classic + BLE) also enables seamless APP control via BLE transparent transmission, a key feature for IoT-enabled devices.

#JL #JieLi #AC696N #BluetoothAudio #EmbeddedSystems #BLE #IoT #FirmwareDevelopment #SmallSpeaker #CostEffective

Frédéric ⏚Mar 20

Blé et betteraves : 10 ans de réussite en “zéro pesticide”

> La rotation des cultures a joué un rôle central : il s’agit de remplacer régulièrement l’espèce cultivée sur une même parcelle, avec intégration de variétés résistantes à certaines maladies et ravageurs
https://lareleveetlapeste.fr/ble-et-betteraves-10-ans-dexperimentation-reussie-en-zero-pesticide/

#Agriculture #Pesticides #Betterave #Blé #FdC #RevueDePresse

Blé et betteraves : 10 ans d’expérimentation réussie en “zéro pesticide”

Des chercheurs montrent qu’il est possible d’atteindre des rendements comparables à ceux de systèmes conventionnels sans pesticides.

La Relève et La Peste
cnx-software.comMar 20

8-inch ESP32-P4 touch display offers WiFi 6, BLE, 802.15.4 connectivity, optional 4G LTE and LoRaWAN

https://fed.brid.gy/r/https://www.cnx-software.com/2026/03/20/8-inch-esp32-p4-touch-display-offers-wifi-6-ble-802-15-4-connectivity-optional-4g-lte-and-lorawan/

8-inch ESP32-P4 touch display offers WiFi 6, BLE, 802.15.4 connectivity, optional 4G LTE and LoRaWAN

Seeed Studio's reTerminal D1001 is an 8-inch capacitive touch display powered by an ESP32-P4 RISC-V microcontroller and equipped with an ESP32-C6 wireless module, a camera, a dual-microphone array, and a speaker. The reTerminal D1001 is a fully enclosed solution designed for HMI applications such as control panels, vision-enabled IoT terminals, video intercoms, and smart dashboards. One highlight compared to other ESP32-P4 displays is optional support for 4G LTE cellular connectivity using an mPCIe module and SIM card slot, as well as LoRaWAN using a Stamp module. reTerminal D1001 specifications: SoC – Espressif Systems ESP32-P4NRW32 CPU Dual-core 32-bit RISC-V HP (High-performance) CPU @ up to 400 MHz with AI instructions extension and single-precision FPU Single-RISC-V LP (Low-power) MCU core @ up to 40 MHz Memory 768 KB HP L2MEM (for dual-core CPU), 32 KB LP SRAM, 8 KB TCM (for LP MCU core) 32MB PSRAM Storage – 128 KB HP ROM, 16

CNX Software - Embedded Systems News
cnx-software.comMar 16

SparkFun OpenScale IoT – An ESP32 board with HX711 ADC for smart scales with WiFi and Bluetooth connectivity

https://fed.brid.gy/r/https://www.cnx-software.com/2026/03/16/sparkfun-openscale-iot-an-esp32-board-with-hx711-adc-for-smart-scales-with-wifi-and-bluetooth-connectivity/

SparkFun OpenScale IoT – An ESP32 board with HX711 ADC for smart scales with WiFi and Bluetooth connectivity

The SparkFun OpenScale - IoT project is a ready-to-use ESP32-based IoT smart scale with open-source hardware and firmware support that makes it easy to read precise weight data from load cells without writing custom code from scratch for basic operation. It handles amplification via the HX711 24-bit ADC, calibration, temperature compensation (using the onboard TMP102 and an optional external DS18B20 probe), and serial output/configuration through a simple text-based menu. It also features Wi-Fi for live data and OTA firmware updates, requiring no dedicated apps—just standard terminal tools and a browser for viewing data. Additionally, there is a Qwiic I²C connector for adding extra sensors or displays. The board operates from 5 V with a typical current consumption of 80 to 100 mA, supports selectable output data rates of 10 or 80 SPS, and includes an adjustable gain for accurate measurements in long-term monitoring setups. SparkFun OpenScale - IoT Specifications: Wireless

CNX Software - Embedded Systems News
cnx-software.comMar 16

M5Stamp C6LoRa tiny (18×15×2.3 mm) SMD module pairs ESP32-C6 with SX1262 LoRa chip

https://fed.brid.gy/r/https://www.cnx-software.com/2026/03/16/m5stamp-c6lora-tiny-18x15x2-3-mm-smd-module-pairs-esp32-c6-with-sx1262-lora-chip/

M5Stamp C6LoRa tiny (18×15×2.3 mm) SMD module pairs ESP32-C6 with SX1262 LoRa chip

The M5Stamp C6LoRa is a compact LoRa SMD module that combines the ESP32-C6 Wi-Fi 6, Bluetooth LE, and 802.15.4 microcontroller with the SX1262 LoRa transceiver for both high-speed and long-distance communication. The module targets applications such as smart agriculture, remote meter reading, industrial monitoring, and outdoor long-range wireless control systems. The module measures 18 × 15 × 2.3 mm, making it suitable for space-constrained systems and compact embedded designs. M5Stack has also added an SGM13005L4 low-noise amplifier (LNA) to improve reception performance, along with a PI4IOE5V6408 I/O expander that manages the LoRa control signals without using too many of the ESP32-C6’s GPIO pins. M5Stamp C6LoRa specifications: SoC – Espressif Systems ESP32-C6 CPU Single-core 32-bit RISC-V clocked up to 160 MHz Low-power RISC-V core @ up to 20 MHz Memory/Storage – 512KB SRAM, 320KB ROM Wireless - WiFi 6, BLE 5.3, 802.15.4 (See wireless section) Storage – 16 MB external NOR flash

CNX Software - Embedded Systems News