HealthyPi Move is an open-source nRF5340-powered biometric monitor worn like a watch (Crowdfunding)

HealthyPi Move

The HealthyPi Move is the latest biometric monitor in the HealthyPi series from ProtoCentral. It is the first to come in a wearable form factor and can measure up to eight vital signs. It is powered by a Nordic Semiconductor nRF5340 dual-core SoC, with a Cortex-M33 application processor and a Cortex-M33 network processor. It features 128MB of flash memory connected through a high-speed QSPI interface that can store up to 10 days of processed data. It is capable of measuring galvanic skin response (EDA/GSR), electrocardiogram (ECG) signals, and photoplethysmogram (PPG) signals for determining blood oxygen level (SPO2), blood pressure, and heart rate variability. It also includes a body temperature sensor and inertial measurement unit (IMU) with a 6-axis accelerometer and gyroscope. HealthyPi Move targets medical and biotech applications, including personal health tracking, building healthcare devices, and even clinical research with approval from the FDA or IRB. We have previously covered […]

Nordic nRF52840-based True Wireless Valve is a USB or battery powered valve for home water management (Crowdfunding)

True Wireless Valve exterior

True Wireless Valve from Uhome Systems is a battery-powered, smart valve that is easy to install and integrate into your smart home setup. It is based on the Nordic Semiconductor nRF52840, a multiprotocol Bluetooth 5.4 SoC with support for Bluetooth Low Energy, Bluetooth mesh, Thread, NFC, and Zigbee. True Wireless Valve can run on four AAA batteries for up to two years and can also be powered via a USB Type-C power supply. It offers a completely wireless experience with the option for battery power which removes the need for additional wiring and makes installation easier and safer. It seamlessly integrates with Home Assistant and other smart home platforms via ZHA and Zigbee2MQTT. It can be paired with a leak detector such as the AquaPing and used to respond automatically to potential leaks in the home. True Wireless Valve specifications: SoC –  Nordic Semiconductor nRF52840 CPU – 32-bit Cortex-M4 core […]

Use your Nintendo Wii Nunchuk as a USB controller with ANAVI Handle open-source hardware adapter (Crowdfunding)

Wii Nunchuck USB port Raspberry Pi 4 retro gaming console

Leon ANAVI has launched another open-source hardware project with the ANAVI Handle that transforms the Nintendo Wii Nunchuck into a USB controller meaning the Wii controller can now be used with any common hardware such as computers, laptops, single board computers, retro-gaming consoles, and so on. The ANAVI Handle is built around the Seeed Studio XIAO RP2040 module based on Raspberry Pi RP2040 microcontroller and converts the Wii Nunchuck with a custom port carrying I2C signals into a standard USB HID device that works without any extra drivers. ANAVI Handle specifications: MCU module – XIAO RP2040 MCU – Raspberry Pi RP2040 dual-core Cortex-M0 processor at 133MHz and 264kB RAM. Storage – 2MB SPI flash USB – 1x USB type C port for power and data Misc – Reset button, boot button, some LEDs PCB Nunchuck connector with I2C signal Dimensions – 35.0 x 33.3 mm OSHWA certification – BG000134 ANAVI […]

Inkplate 6 MOTION STM32-powered wireless e-paper display offers higher resolution and faster refresh rates (Crowdfunding)

Inkplate 6 MOTION with enclosure

The Inkplate 6 MOTION is a new product from Soldered Electronics in their Inkplate series of wireless e-paper displays. It is a 6-inch e-paper display with a partial refresh rate of 11fps which reduces obvious latency in rendering dynamic content such as videos, animations, and scrolling text. The display is driven by an STMicroelectronics dual-core STM32H743 microcontroller, with an ESP32-C3 as a secondary processor. It features Wi-Fi and Bluetooth for networking and a host of peripheral interfaces for physical connectivity. It includes several sensors such as a rotary encoder for quick navigation, a gravitational accelerometer with a gyroscope for tracking device orientation, and a motion detection sensor. We covered the original Inkplate 6 display when it launched on Crowd Supply in 2019. The Inkplate 6 is much less expensive than the new model but has a lower screen resolution (800 x 600 px) and slower refresh rates (256ms). Furthermore, it […]

BreadboardOS firmware for the Raspberry Pi RP2040 features a Linux-like terminal

BreadboardOS Raspberry Pi Pico

Cavin McKinley’s BreadboardOS is an open-source firmware platform for the Raspberry Pi RP2040 MCU (for now) built around FreeRTOS and with a feature-packed CLI that reminds me of the Linux terminal.

The terminal implementation is based on a fork of the microshell project with some additional customization. It is organized into POSIX-style folders/files providing a familiar user interface for interacting with the hardware on the MCU.

BreadboardOS running on Raspberry Pi Pico board

BreadboardOS highlights:

FreeRTOS-based
Tools for checking system resources such as ps, top, free, and df commands
Interaction with chip I/O and serial buses from the terminal using commands such as cat and echo, for example, you can print the list of GPIOs with:

Compact ESP32-S3 based air quality sensor uses an LED dial to tell how clean your air is (Crowdfunding)

air quality sensor board and module

If you are curious about the air quality in your area, then Studio LUFF Air Quality Sensor might be just the thing for you. It is designed to be affordable, open-source, portable, and customizable. Studio LUFF is a design practice based in California, United States composed of Pierluigi Dalla Rosa and two others. Collectively, they “advocate for an alternative approach to technology that is driven by curiosity, creativity, community and sustainability.” The Air Quality Sensor is their first product. The Air Quality Sensor is powered by an ESP32-S3 microcontroller and uses a Plantower PMS7003 particulate matter sensor module to measure air quality. It looks like a small, black disk with AQI (air quality index) values that run from 0 to 200. An LED dial is mounted on the back of the device which reflects on the wall to display the current air quality index in the area. The project was inspired […]

FLIP_C3 ESP32-C3 board takes up to 60V DC input, ships with ESPHome firmware

flip c3 board front

Voidbox FLIP_C3 is an open-source hardware board powered by an ESP32-C3 WiFi & BLE microcontroller that takes up to 60V DC power input feeding a 5V/2A DC-DC step-down converter and flashed with ESPHome firmware by default for Home Assistant support. The board incorporates a push-in spring release connector which means stranded (ferrules or tinning are suggested) and solid wires can be used in deploying the device in off-grid/battery-powered systems with up to 16s LiFePO4 delivering 48V through the 6-60V input port on the ESP32-C3 board. The onboard WS2812B LED can be used as a null pixel/level shifter for longer strings of addressable pixels. The ESP32-C3 – due to its support for Wi-Fi and BLE connectivity – is a popular SoC for IoT solutions and powers home and industrial automation devices such as NanoCell v2.1, Spark Analyzer, LOLIN C3 Pico, and the LILYGO T-RSC3. It is built for home automation applications […]

/e/OS v2 privacy-focused, Google-free Android mobile OS released with improved UI, Android Auto support, etc..

/e/os v2 release

The e Foundation has just announced the release of the /e/OS v2 Android-based Google-free open-source mobile operating system with an improved launcher, support for Android Auto, a “Wall of Shame” to identify the most leaking apps and tracker, QR Code scanning support in the camera app, and more. Most Android smartphones come with Google services which may be convenient (and help keep Android free), but come at the loss of the users’ privacy. That’s why the e Foundation started offering e/OS over five years ago to offer a privacy-focused version of Android without Google services on specific phones. The project has evolved over the years, over 200 mobile devices are supported officially and unofficially, and Murena, a for-profit company, has also been established to sell e/OS smartphones and cloud services. /e/OS v2 highlights and changes: Based on LineageOS 20 with the latest bug fixes and security updates (itself based on […]