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

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 […]

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HARDWARIO CHESTER – A configurable Zephyr OS LPWAN IoT gateway with LoRaWAN, LTE IoT, GNSS connectivity

HARDWARIO CHESTER platform is a configurable LPWAN IoT gateway whose main function is to connect as many devices and environments as possible to the Internet using connectivity such as LoRaWAN, LTE Cat M1, or NB-IoT, as well as GNSS for geolocation. Contrary to most IoT gateways, it does not run Linux on an application processor, and instead, the “brain” of the CHESTER IoT gateway is a Raytac Bluetooth 5.0 module based on a Nordic Semi nRF52840 Arm Cortex-M4 microcontroller running Zephyr real-time operating system, which connects to LTE IoT modem and a LoRaWAN module through UART, and expansion modules through I2C, 1-wire, and GPIO interfaces. HARDWARIO CHESTER specifications: Wireless modules/chips Raytac MDBT50Q-P1MV2 Bluetooth 5.0 module based on Nordic Semi nRF52840 Arm Cortex-M4F MCU with 1MB Flash memory, 256kB RAM Nordic Semi nRF9160-SICA-B1A-R7 LTE-M/NB-IoT system-in-package (SiP) with Arm Cortex-M33 MCU, 1024 KB flash, 256 KB SRAM Murata CMWX1ZZABZ-078 LoRa module as […]

ArmSoM CM5 - Raspberry Pi CM4 alternative with Rockchip RK3576 SoC
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Arduino Nano 33 BLE Sense Rev2 switches to BMI270 & BMM150 IMUs, HS3003 temperature & humidity sensor

Arduino Nano 33 BLE Sense Rev2 is a new revision of the Nano 33 BLE Sense machine learning board with basically the same functionality but some sensors have changed along with some other modifications “to improve the experience of the users”. The main changes are that STMicro LSM9DS1 9-axis IMU has been replaced by two IMUs from Bosch SensorTech, namely the BMI270 6-axis accelerometer and gyroscope, and the BMM150 3-axis magnetometer, a Renesas HS3003 temperature & humidity sensor has taken the place of an STMicro HTS221, and the microphone is now an MP34DT06JTR from STMicro instead of an MP34DT05. All of the replaced parts are from STMicro, so it’s quite possible the second revision of the board was mostly to address supply issues. Arduino Nano 33 BLE Sense Rev2 (ABX00069) specifications: Wireless Module – U-blox NINA-B306 module powered by a Nordic Semi nRF52840 Arm Cortex-M4F microcontroller @ 64MHz with 1MB […]

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Arduino Nicla Voice enables always-on speech recognition with Syntiant NDP120 “Neural Decision Processor”

Nicla Voice is the latest board from the Arduino PRO family with support for always-on speech recognition thanks to the Syntiant NDP120 “Neural Decision Processor” with a neural network accelerator, a HiFi 3 audio DSP, and a Cortex-M0+ microcontroller core, and the board also includes a Nordic Semi nRF52832 MCU for Bluetooth LE connectivity. Arduino previously launched the Nicla Sense with Bosch SensorTech’s motion and environmental sensors, followed by the Nicla Vision for machine vision applications, and now the company is adding audio and voice support for TinyML and IoT applications with the Nicla Voice. Nicla Voice specifications: Microprocessor – Syntiant NDP120 Neural Decision Processor (NDP) with one Syntiant Core 2 ultra-low-power deep neural network inference engine, 1x HiFi 3 Audio DSP, 1x Arm Cortex-M0 core up to 48 MHz, 48KB SRAM Wireless MCU – Nordic Semiconductor nRF52832 Arm Cortex-M4 microcontroller @ 64 MHz with 512KB Flash, 64KB RAM, Bluetooth […]

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ZSWatch open-source hardware nRF52833 smartwatch runs Zephyr RTOS

ZSWatch is an open-source hardware smartwatch based on an u-Blox ANNA-B402 module with Nordic Semi nRF52833 Bluetooth 5.1 SoC and running Zephyr real-time operating systems. We’ve seen several open-source hardware smartwatches over the years, as well as open-source firmware projects such as AsteroidOS or InfiniTime with the latter used in the PineTime smartwatch, and the ZSWatch adds to the list of interesting open-source wearables with all source files made public. ZSWatch specifications: Wireless module – u-blox ANNA-B402 based on Nordic Semi nRF52833 Arm Cortex-M4F microcontroller with Bluetooth LE 5.1 and direction finding support Storage – 8MB flash (MX25R6435FZNIL0) Display – 1.28-inch 240×240 IPS TFT circular display with GC9A01 driver; covered with Sapphire Crystal Glass. Sensors Accelerometer (LIS2DS12TR) for step counting, etc… MAX30101EFD for pulse oximetry and heart rate monitoring Misc 3x buttons for navigation (prev, next, enter) Vibration motor (DRV2603RUNT) with haptics driver to give better vibration control. Power Management […]

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Pico-ITX SBC features NXP i.MX 93 LGA system-on-module

iWave Sytems iW-RainboW-G50M is an NXP i.MX 93 OSM-L compliant LGA module with up to 2GB RAM, WiFi 5 and Bluetooth 5.2 module that is found in the company’s iW-RainboW-G50S Pico-ITX SBC designed for industrial applications. The NXP i.MX 93 single and dual-core Cortex-A55 processor with an Ethos U65 microNPU was announced in November 2021, but we had yet to see any hardware based on the new NXP i.MX 9 processor family. The iW-RainboW-G50M and iW-RainboW-G50S change that with a system-on-module and single board computer. iW-RainboW-G50M NXP i.MX 93 system-on-module Specifications: SoC (one or the other) NXP i.MX 9352 dual-core Cortex-A55 processor @ up to 1.7 GHz with Arm Cortex-M33 @ 250 MHz,  0.5 TOPS NPU NXP i.MX 9351 single-core Cortex-A55 processor @ up to 1.7 GHz with Arm Cortex-M33 @ 250 MHz, 0.5 TOPS NPU NXP i.MX 9332 dual-core Cortex-A55 processor @ up to 1.7 GHz Arm Cortex-M33 @ […]

Rockchip RK3568/RK3588 and Intel x86 SBCs
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Unsurv offline – An ESP32 GNSS receiver board with NFC, accelerometer (Crowdfunding)

Unsurv offline is a compact and lightweight board with ESP32 WiSoC, a GNSS receiver, an accelerometer, and NFC capabilities to help developers/users collect and analyze location data in a privacy-friendly way. Unsurv Technologies initially developed the board to better understand offline video surveillance with OpenStreetMap (OSM) data. It does so by using a database of camera locations from the OSM on the SD card, “counts” surveillance cameras as you walk past them, and you can then transmit data via NFC and visualize it on your smartphone. The accelerometer is used to wake up the board from deep sleep upon detection of motion. The company has now made the board open-source and other applications are also possible. Unsurv offline specifications: Wireless modules TTGO T-micro32 WiFi 4 and Bluetooth 4.2 module based on ESP32-PICO-D4 SiP with dual-core ESP32 processor, 4MB FLASH, ceramic antenna U-blox CAM-M8C (aka u-blox M8) module with concurrent reception […]

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Giveaway Week – WisBlock Kit 2 LoRa-based GPS Tracker with Solar Panel

The second prize of CNX Software’s giveaway week does not come directly from me, but instead, RAKwireless accepted to offer a sample to add to the event: Wisblock Kit 2. The kit is a LoRa-based GPS tracker that comes with a sensor to detect location change every set time interval, and ships with a solar panel, although you could also offer it with a set of batteries (not included). Since I’ve never written about this kit, let’s go through the main building blocks: RAK5005-O base board Slots for 1x WisBlock Core MCU module, up to 4x WisBlock Sensor modules, and one WisBlock IO module I2C, UART, GPIO’s and analog input accessible with solder contacts Debugging – USB debug port Misc- 2x user LED’s, reset button Supports 3 different power supply sources 1 slot for WisBlock Core MCU RAK4631 Wisblock Core module WiSoC – Nordic nRF52840 with Bluetooth Low Energy 5.0 […]

Boardcon Rockchip and Allwinner SoM and SBC products