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Posted on by Jean-Luc Aufranc (CNXSoft) - 9 Comments on OpenEarable open-source hardware earable platform leverages Arduino Nano 33 BLE Sense ecosystem

OpenEarable open-source hardware earable platform leverages Arduino Nano 33 BLE Sense ecosystem

TECP Open Earable open source hardware device

OpenEarable is an open-source hardware earable, sometimes also called hearable, that fits around your ear and is based on the same u-blox NINA-B306 module found in the Arduino Nano 33 BLE Sense board. Besides the Nordic Semi nRF52840 Arm Cortex-M4-based Bluetooth LE module, the design also features a speaker and ultrasonic microphone, a 6-axis IMU and a pressure sensor, as well as the circuitry for the battery, two LEDs, and a push button. OpenEarable specifications: Wireless module – U-blox NINA-B306 module powered by a Nordic Semi nRF52840 Arm Cortex-M4F microcontroller @ 64MHz with 1MB Flash, 256KB RAM, Bluetooth 5.0 LE connectivity Audio – Built-in speaker and ultrasonic microphone (Knowles SPH0641LU4H-1) Sensors STMicro LPS22HBTR pressure and temperature sensor STMicro LSM6DSRTR 6-axis IMU with accelerometer and gyroscope USB – Micro USB port for power and programming Debugging – Solder pads for SWD interface Misc – Push button, charging LED, one programmable PWM […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 13 Comments on ESP32-H2-DevKitM-1 ESP32-H2 development board launched for $10

ESP32-H2-DevKitM-1 ESP32-H2 development board launched for $10

ESP32-H2-DevKitM-1

Espressif Systems unveiled the ESP32-H2 Bluetooth 5.2 LE & 802.15.4 RISC-V microcontroller in August 2021, but the ESP32-H2-DevKitM-1 development board based on the ESP32-H2-MINI-1 module has only been selling on the official Espressif’s Aliexpress store for $9.90 for a few weeks. The ESP32-H2-DevKitM-1 development board allows the development of applications with Bluetooth 5.2 LE, Zigbee, Thread, and/or Matter connectivity, features two USB Type-C ports, Boot & Reset buttons, and RGB LED, and two rows of 15 pins exposing all I/Os from the ESP32-H2-MINI-1 module. ESP32-H2-DevKitM-1 specifications: Wireless module – ESP32-H2-MINI-1 MCU – Espressif Systems ESP32-H2 32-bit RISC-V microcontroller at up to 96 MHz with 320 KB SRAM, 128 KB ROM, 4 KB LP memory, Bluetooth 5.2 LE/Mesh and 802.15.4 (Zigbee/Thread/Matter) radios. Storage – 4MB flash storage (E1N4 on the photo above should mean 4MB, but there are also ESP32-H2-MINI-1 modules with 1MB and 2MB flash) PCB antenna Dimensions – 13.2×16.6×2.4 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 3 Comments on Sonatino – A Raspberry Pi Zero-sized ESP32-S3 audio board

Sonatino – A Raspberry Pi Zero-sized ESP32-S3 audio board

Raspberry Pi Zero ESP32-S3 audio board

Lumination Labs’ Sonatino is an ESP32-S3 board designed for audio applications that follows the Raspberry Pi Zero dimensions so that it can be used with some of the cases designed for the Raspberry Pi Zero. The wireless audio board features Cirrus Logic WM8524 audio DAC and WM8782 audio DAC capable of 24-bit 192kHz stereo output and mono input respectively, a speaker amplifier and two pins for speaker connection, a 3.5mm audio jack, as well as a microSD card slot for the storage of audio or other data. Sonatino specifications: Wireless Module – ESP32-S3-WROOM-1 with SoC – ESP32-S3 dual-core LX7 microprocessor @ up to 240 MHz with Vector extension for machine learning Memory – 2MB PSRAM Storage – 16MB flash Connectivity – WiFi 4 and Bluetooth 5 LE/Mesh Storage – MicroSD card slot (SPI) Audio 3.5mm audio jack supporting input and output (TRRS, CTIA standard) Speaker connection: onboard pins, optional screw […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 5 Comments on TI launches Simplelink CC3300/CC3301 WiFi 6, Bluetooth 5.3 LE companion IC for IoT applications

TI launches Simplelink CC3300/CC3301 WiFi 6, Bluetooth 5.3 LE companion IC for IoT applications

BP-CC3301 SimpleLink CC3301 WiFi 6 BLE BoosterPack plug in module

Texas Instruments has unveiled the SimpleLink CC33xx family of Wi-Fi 6 companion IC with optional Bluetooth 5.3 Low Energy designed to be connected to a microcontroller (MCU) or a microprocessor (MPU) for secure and power-efficient IoT devices, The SimpleLink CC3000 supports 2.4 GHz WiFi 6, and interfaces over SDIO, SPI, and/or UART to the host system, while the SimpleLink CC3301 also adds support for Bluetooth 5.3 LE. Both chips can operate in high-temperature environments up to 105ºC. Texas Instruments CC3300/CC3301 specifications: Wireless 2.4 GHz WiFi 6 (802.11ax) up to 50 Mbps; Support for TWT and OFDMA, multirole (Access Point and Station) CC3301 only – Bluetooth 5.3 Low Energy up to 2 Mbps WiFi and Bluetooth COEX Host interface – 4-bit SDIO or SPI, and UART to external MCU or MPU Security – FW authentication and anti-rollback protection, WPA2/WPA3, Secured host interface Pacakge – 40-pin QFN package (5×5 mm) Temperature range […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 4 Comments on T-HMI ESP32-S3 board comes with an 2.8-inch touchscreen color display, three Grove expansion connectors

T-HMI ESP32-S3 board comes with an 2.8-inch touchscreen color display, three Grove expansion connectors

ESP32-S3 HMI board resistive touch panel

Lilygo has launched yet another ESP32-S3 board with an integrated display, but the T-HMI has a larger 2.8-inch color display and a resistive touch panel suitable for HMI (Human Machine Interfaces). It is also equipped with three Grove connectors for expansion with sensors or actuators. Like all the recent ESP32-S3 boards from Lilygo, the T-HMI features the ESP32-S3R8 WiFi 4 and Bluetooth MCU with 8MB PSRAM, as well as a 16MB SPI flash, a microSD card slot, a few buttons, and power from USB or a LiPo battery. Lilygo T-HMI board specifications: Wireless MCU – Espressif Systems ESP32-S3R8 dual-core Tensilica LX7 @ up to 240 MHz with vector instructions for AI acceleration, 512KB RAM, 8MB PSRAM, wireless connectivity Storage – 16MB SPI flash, microSD card socket Connectivity via ESP32-S3 2.4 GHz 802.11 b/g/n Wi-Fi 4 with 40 MHz bandwidth support Bluetooth Low Energy (BLE) 5.0 connectivity with long-range support, up […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Embedded Open Source Summit 2023 schedule – Zephyr OS, Security, IoT, Embedded Linux, and more

Embedded Open Source Summit 2023 schedule – Zephyr OS, Security, IoT, Embedded Linux, and more

Embedded Open Source Summit 2023

The Linux Foundation has just announced the full schedule for the Embedded Open Source Summit, which will take place on June 27-30, 2023 in Prague, Czech Republic, as well as virtually starting on June 26. Over 175 sessions, birds of a feather (BoF) tracks, and workshops related to embedded and open-source innovation will be presented at the event itself comprised of six micro conferences: Automotive Linux Summit Europe, Embedded IoT Summit, Embedded Linux Conference, LF Energy Embedded Summit, Safety-Critical Software Summit, and Zephyr Project Developer Summit. Even though I’m not going to attend personally, I’ve gone through the schedule to create my own little virtual schedule with some sessions relevant that should be interesting to me and hopefully to CNX Software readers. Monday, June 26 (Virtual sessions) The first day of the event will have a Yocto Dev training in the morning, and a bunch of virtual sessions that are […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 4 Comments on Nordic Semi nRF54H20 Cortex-M33 + RISC-V wireless SoC supports Bluetooth 5.4, LE Audio, Bluetooth mesh, Thread, Matter, and more

Nordic Semi nRF54H20 Cortex-M33 + RISC-V wireless SoC supports Bluetooth 5.4, LE Audio, Bluetooth mesh, Thread, Matter, and more

nRF54H20

Nordic Semi nRF54H20 is a 320 MHz multiprotocol wireless SoC with several Arm Cortex-M33 and RISC-V cores, support for Bluetooth 5.4 and greater with features like LE Audio and Bluetooth mesh, as well as Thread, Matter, and so on. It is the first part of the fourth generation nRF54 family manufactured with a 22nm process, and its application processor doubles the processing power (2x CoreMark) of the Arm Cortex-M33 application core in the nRF5340 SoC and embeds up to 2MB flash, 1MB SRAM. nRF54H20 preliminary specifications and highlights: CPU Application core  – Arm Cortex-M33 @ up to 320 MHz with 2 MB Flash + 1MB SRAM Network core –  Arm Cortex-M33 Several RISC-V cores (for low power?) Wireless Bluetooth 5.4 LE with direction-finding, Bluetooth mesh, LE audio, etc… 802.15.4 radio for Thread, Matter -100 dBm RX sensitivity @ 1 Mbps for Bluetooth LE Up to 10 dBm TX power New […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on T-Display-S3 AMOLED – An ESP32-S3 board with a 1.9-inch AMOLED Display

T-Display-S3 AMOLED – An ESP32-S3 board with a 1.9-inch AMOLED Display

ESP32-S3 board with an AMOLED display

There are plenty of ESP32 series boards with display usually TFT or E-Ink, but I don’t think I’ve ever seen one with an AMOLED display and that’s what Lilygo is offering with the “T-Display-S3 AMOLED” board equipped with an ESP32-S3 WiFi and Bluetooth microcontroller and a 1.9-inch AMOLED display. The new board is almost the same as the T-Display-S3 board introduced last year, except for a display with higher resolution, more vibrant colors, and a wider viewing angle, plus a 3D antenna, and a few extra I/Os. T-Display-S3 AMOLED specifications: Wireless MCU – Espressif Systems ESP32-S3R8 dual-core Tensilica LX7 @ up to 240 MHz with vector instructions for AI acceleration, 512KB RAM, 8MB PSRAM, wireless connectivity Storage – 16MB flash Connectivity via ESP32-S3 2.4 GHz 802.11 b/g/n Wi-Fi 4 with 40 MHz bandwidth support Bluetooth Low Energy (BLE) 5.0 connectivity with long-range support, up to 2Mbps data rate. 3D antenna […]