The ANAVI Dev Mic is an open-source microphone board from ANAVI Technology in Plovdiv, Bulgaria powered by the Seeed Studio XIAO RP2040 module and an omnidirectional digital microphone from STMicroelectronics. It is a compact and affordable product that outperforms USB microphones in artificial intelligence and machine learning voice applications. The design is simple and unassuming, with the Seeed Studio XIAO RP2040 module in the center, surrounded by a USB-C port for power and programming and 9 GPIO pins for extensibility. The STMicroelectronics MP23DB01HP microphone (MK1) is mounted on the top of the board with a small hole on the bottom. It is a compact, low-power, digital MEMS microphone capable of capturing sounds from different directions with very low distortion. It uses a PDM (Pulse-Density Modulation) interface created via the programmable inputs/outputs (PIO) on the RP2040. The ANAVI Dev Mic is applicable for conducting AI/ML research, building a voice recognition platform, […]
Twotrees SK1 3D printer review – Part 2: Enclosure kit and AI camera
We reviewed the Twotrees SK1 CoreXY 3D printer capable of delivering high printing speeds last March, but here’s a second part of the review as the company sent us additional accessories namely the enclosure kit For SK1 and the AI camera for SK1 which we will report on today. The main structure of the enclosure is made of metal sheets plus a door that opens from the front and a top plate made of tempered glass. The SK1 3D printer enclosure makes the 3D printer more beautiful, protects it from dust, is easy to install, and features a fan and air filter system. It’s also designed to mount the AI Camera for SK1 to help users monitor the SK1 while printing is in progress. TwoTrees Enclosure Case Kit For SK1 The interior of the Twotrees SK1 3D printer enclosure is mostly made of metal and includes a tempered glass door […]
SparkFun Pro Micro – RP2350 development board comes with 16MB flash, 8MB PSRAM
The SparkFun Pro Micro – RP2350 is a compact and powerful development board built around the RP2350 chip from Raspberry Pi and equipped with 16MB flash and 8MB PSRAM. It follows the updated Pro Micro design and includes a USB-C connector, Qwiic connector, WS2812B RGB LED, Boot and Reset buttons, resettable PTC fuse, and both PTH and castellated solder pads. Last week, besides the Raspberry Pi Pico 2, we wrote about more boards with the Raspberry Pi RP2350, like the XIAO RP2350, Solder Party’s RP2350 Stamp, and Cytron MOTION 2350 Pro. Feel free to check them out if you are interested in these boards. SparkFun Pro Micro – RP2350 specification Microcontroller – Raspberry Pi RP2350A MCU CPU Dual-core Arm Cortex-M33 @150MHz with Arm Trustzone for secure boot Dual-core 32-bit Hazard3 RISC-V @ 150MHz Up to two cores can be used at the same time Memory – 520 KB on-chip SRAM […]
MILK-V Jupiter review – A RISC-V mini-ITX motherboard and PC tested with Ubuntu-based Bianbu OS
In this review or preview of the the Shenzhen Milk-V Jupiter RISC-V mini-ITX motherboard, I’ll assemble the motherboard into a mini-ITX chassis, before installing the Ubuntu 23.10 Mantic-based Bianbu OS optimized for RISC-V platforms, and testing the device to see how much progress has been done on RISC-V since I tested the StarFive VisionFive 2 SBC with Debian 12 about 18 months ago. In the first part of the review, we checked out the Radxa ROCK 5 ITX (Rockchip RK3588 Arm) and Jupiter (SpacemIT K1 RISC-V) mini-ITX motherboards with specifications and unboxing, and the Auriga 6-Bay NAS mini-ITX chassis used in this review. I planned to start with the Radxa ROCK 5 ITX, but due to logistics and technical issues, I went ahead testing the RISC-V motherboard first. Installing Bianbu OS to the Jupiter RISC-V motherboard The board does not come with storage, so no operating system is installed. So […]
Cytron MOTION 2350 Pro – A Raspberry Pi RP2350 board for robotics and motor control
As mentioned in the Raspberry Pi Pico 2 article, third-party RP2350 boards are already available, and one of them is the MOTION 2350 Pro board from Cytron designed for robotics and motor control. The board features a DC motor driver capable of controlling up to 4 brushed DC motors with voltage ratings from 3.6V to 16V. It also features eight 5V servo ports, eight GPIO ports, and three Maker ports for sensor or actuator modules. Each I/O is matched with its own LED which makes the board ideal for the education market and also simplifies debugging. Finally, a USB 1.1 host port is present to connect peripherals such as the RF dongle for a joystick or a keyboard. Cytron MOTION 2350 Pro specifications: Microcontroller – Raspberry Pi RP2350 CPU – Dual-core Arm Cortex-M33 processor @ 150MHz (RISC-V cores are not mentioned, so they are likely not used at all) Memory […]
MechDog AI Robot Dog features ESP32-S3 controller, supports Scratch, Python, and Arduino programming
Hiwonder’s MechDog is a compact AI robot dog powered by an ESP32-S3 controller that drives eight high-speed coreless servos. It features built-in inverse kinematics for precise and agile movements and has ports for various I2C sensors such as ultrasonic and IMU sensors. The robot is equipped with a durable aluminum alloy frame and a removable 7.4V 1,500mAh lithium battery for power. MechDog integrates with the ESP32-S3 AI vision module, supporting dual-mode network communication either AP Hotspot Direct Connection Mode or STA LAN Mode so that users can access a designated URL webpage via an app or PC for real-time monitoring using a high-definition camera. Also, this robot dog supports various sensor modules, including a touch sensor, light sensor, dot matrix display, and programmable MP3 module, allowing for secondary development and expansion, offering extensive creative possibilities. Previously, we wrote about the Waveshare UGV AI Rover, which features a 2mm thick aluminum […]
Google kills the Chromecast, introduces the Google TV Streamer for both video streaming and Smart Home control
Google has just announced the Chromecast media streamer would be phased out, introducing instead the Google TV Streamer for both TV streaming and the Smart Home with not only gigabit Ethernet, WiFi 5, and Bluetooth 5.1 connectivity, but also Matter support and Thread border router function. The Android TV device comes with 4GB RAM and 32GB eMMC flash, an HDMI 2.1 port supporting up to 4Kp60, and a USB-C port for power and data. A voice remote control is also included, and the solution is not integrated with the Smart Home allowing users to connect to locks and motion sensors through Thread/Matter, monitor their security camera systems, and more. Google TV Streamer specifications: CPU – Not disclosed, but allegedly the MediaTek MT8696 quad-core Arm Cortex-A55 processor @ 1.8 GHz, Imagination GE9215 GPU @ 750MHz as found in the Amazon Fire TV Stick 4K Max is used here. System Memory – […]
Linamp – A Raspberry Pi 4-based audio box with Winamp look and feel
Linamp is a media player box based on Raspberry Pi 4 SBC and a touchscreen display with a GUI that replicates the popular Winamp media player’s GUI that older readers may remember from the late 90s and early 2000s when it was one of the most popular music players for Windows. Rodmg found some renders of what a real Winamp player could look like online, and it inspired him to create his own. As its name implies Linamp runs on Linux (DietPi) instead of Windows, and the hardware is based on a Raspberry Pi 4, a 7.9-inch touchscreen display, a USB DAC, and various connectors and cables, all housed in a custom-designed metal enclosure and a 3D-printed front cover both designed with Onshape. Here’s the complete list of off-the-shelf items used for the build: SBC – Raspberry Pi 4 with a 32 GB microSD card, a set of passive heat […]