Seeed Studio has added two members to its XIAO family of tiny MCU boards with the XIAO MG24 and XIAO MG24 Sense boards based on Silicon Labs EFR32MG24 multi-protocol wireless SoC and designed for battery-powered Matter over Thread and Bluetooth LE 5.3 applications. Both 21×17.8 mm USB-C boards feature a 78MHz Silabs MG24 Cortex-M33 microcontroller with 256kB SRAM and 1536KB flash, an additional 4MB SPI flash on-board, and 22 pins and pads for GPIO pins, analog inputs, and power signals, plus a reset button and two LEDs. The “Sense” model adds an analog microphone and a 6-axis IMU sensor. XIAO MG24/MG24 Sense specifications: SoC – Silicon Labs EFR32MG24 (EFR32MG24B220F1536IM48-B) MCU cores Arm Cortex-M33 @ 78.0 MHz with DSP instruction and floating-point unit for user application Arm Cortex-M0+ core for wireless Memory – 256 KB RAM Storage – 1536 KB flash Wireless protocols – Matter, OpenThread, Zigbee, Bluetooth Low Energy 5.3, […]
Siterwell wired and wireless smoke alarms offer low false alarm rate, high precision detection (Sponsored)
Siterwell wireless and wired smoke and carbon monoxide (CO) alarms offer a low false alarm rate and high precision detection thanks to a maze design, dual-wavelength light technology, and AI-powered scene learning. Siterwell is a high-tech enterprise that provides integrated solutions across various fields, including smart security, smart home, and smart city based on IoT technology and security products. They are committed to advancing home safety with innovative and efficient solutions. Siterwell smoke alarms specifications and highlights: High-precision detection with an alarm accuracy of 99.96% Design optimized to decrease the number of false alarms with Maze design/micro-mesh design to reduce interference from other particles such as mosquitoes/dust/smoke particles Dual-wavelength light detection to accurately detect smoke from both fast-burning and smoldering fire Mechanical creep simulation, mechanical impact simulation, air-fluid dynamics simulation, and optical modeling to prevent false alarms while cooking AI-powered scene learning – Upon activation, the device begins to learn […]
CodeCell is a ESP32-C3 mini development board for robots, wearables, smart home projects
Engineer and YouTuber Carl Bugeja recently developed CodeCell, a tiny ESP32-C3 development board designed as the brain for robots, wearables, and smart home devices. This module features a nine-axis inertial measurement unit (IMU) for motion fusion and an optional VCNL4040 light sensor. It includes a USB Type-C port for data and power as well as a lithium-polymer battery with a charging circuit. Measuring just 18.5 x 18.5mm this compact board is even smaller than other tiny ESP32 development boards such as Waveshare’s ESP32-S3-Zero and Seeed Studio’s XIAO ESP32S3. However, the Epi C3 is smaller at 23 x 12.75 mm, and so are the Unexpected Maker NANOS3 (25 x 10 mm) and Unexpected Maker OMGS3 (28 x 11 mm). CodeCel ESP32-C3 mini development board specification Microcontroller – ESP32-C3 RISC-V MCU 160MHz 32-bit RISC-V processor core 400kB SRAM, 4MB flash storage Wi-Fi 4 and Bluetooth Low Energy (BLE) connectivity Sensors Vishay VCNL4040 light […]
SONOFF ZBMINIR2 review – A mini Zigbee switch & Zigbee router tested with eWeLink and Home Assistant
We have received another Zigbee device from SONOFF for review, namely the ZBMINIR2 which we’ll review with both eWelink adn Home Assistant. Many people may be familiar with the first-generation mini Zigbee Switch that SONOFF released in 2020, known as the ZBMINI. ZBMINI was one of the early Zigbee Switch models, which also acted as a Zigbee Router. The ZBMINIR2 is SONOFF’s second-generation mini Zigbee Switch including both software and hardware upgrades compared to its predecessor. Improvements include a smaller size, better signal quality, an increase in the number of supported devices (2x), wider coverage (5x), and additional features. Let’s dive into the details. Unboxing ZBMINIR2 Zigbee switch Inside the box, you’ll find a small user manual and the ZBMINIR2 device as usual. It is notably smaller than the predecessor model, which makes installation much easier in many cases. For example, it can now fit into the wall box behind […]
Renesas RX260 and RX261 64 MHz RXv3 MCUs target power-efficient touch applications
The Renesas RX260 and RX261 two new 64 MHz microcontrollers part of the high-performance, high-efficiency RX product family with integrated capacitive touch-sensing and high power efficiency in both active and standby modes. The microcontrollers are based on the RXv3 core with a performance score of 355 CoreMark @ 64MHz, which is “2.5 times higher than competing 64 MHz class MCUs.” The chips are also power-efficient, with a consumption rate of 69μA/MHz during active operation and 1μA only in standby mode. According to Renesas, the chips are up to 25% more efficient in active mode and 87% more efficient in standby mode than other 64 MHz class MCUs. Another competing factor is the onboard 8KB of data flash, eliminating the need for external EEPROM. The RX260 and RX261 Group MCUs support noise- and water-resistant capacitive touch via Renesas’ third-generation capacitive touch IP (CTSU2SL). They also integrate an “automatic judgment function” that […]
DALI2 expansion module for ESP32-C6-Pico and ESP32-S3-Pico boards facilitates Smart Lighting integration
Waveshare has recently launched the Pico-DALI2 expansion module for ESP32-Pico series boards designed to enable DALI communication for customized control of multiple lighting groups. It is compatible with development boards such as the ESP32-C6-Pico and ESP32-S3-Pico and includes a DALI communication screw terminal for connecting external DALI devices. DALI (Digital Addressable Lighting Interface) is a standardized protocol used for lighting control in building automation systems. The latest version of the DALI2 protocol is better than the old one in that it offers enhanced interoperability, additional features like multi-master configurations, and better energy management capabilities. DALI2 devices can communicate bidirectionally, meaning controllers can send commands and also receive status feedback from lighting devices, allowing for more complex automation and diagnostics. We can get more information about DALI from Wikipedia. We have previously seen the uses of DALI in Texas Instruments MSPM0 Arm Cortex-M0+ microcontrollers as an interface and in Acme CM3-Home […]
Get Redroad X18 high suction handheld vacuum cleaner for 40% off (Sponsored)
This is a great opportunity to get an amazing X18 offer that is not to be missed! Redroad brings great value for money and offers a powerful cleaning device with the X18 cordless vacuum cleaner delivering 33,000 Pa of suction power. Thanks to its 33,000Pa suction power, the X18 easily sweeps away dirt hidden deep in carpet fibers and floor crevices. With a variety of professional brush heads that can be switched freely, it can effectively clean the crevices of sofas and the top of bookshelves to keep your home environment always clean. Redroad X18’s 33000Pa super strong suction power can easily absorb pet hair, debris, hidden in the depths of the carpet dust, and even soybean-sized particles of garbage so that the floor is quickly restored to its original cleanliness and tidyness. This prevents the user from repeating cleaning in the same location as often required with vacuum cleaners […]
Infineon PASCO2V15 CO2 sensor achieves ±50 ppm accuracy with built-in microphone and IR emitter
Infineon’s PASCO2V15 CO2 sensor is a compact and precise carbon dioxide sensor that uses photoacoustic spectroscopy (PAS) leveraging its built-in microphone and IR emitter to detect CO2 levels by measuring pressure changes caused by the absorption of infrared light by CO2 molecules. The sensor is highly precise (±50 ppm ±5%) and can cover a wide range (0 to 32,000 ppm). it also includes features like pressure compensation and automatic baseline offset correction for reliability. With its small size and low power consumption, the PASCO2V15 can be integrated into HVAC systems, room controllers, smart thermostats, air purifiers, and other devices to optimize ventilation and improve energy efficiency. PASCO2V15 CO2 sensor specifications Sensor technology – Photoacoustic Spectroscopy (PAS) with Non-Dispersive Infrared (NDIR) principles Gas measured – Carbon Dioxide (CO2) Measurement range – 0 to 32,000 ppm Accuracy – ± (50 ppm +5%) of reading between 400 ppm and 3000 ppm Output Interfaces […]