Bee Motion ESP32-S2 PIR motion sensor offers GPIOs, over a year of battery life

Bee Motion ESP32-S2 motion sensor

Smart Bee Designs’ Bee Motion is an ESP32-S2 board with a PIR motion sensor, some GPIOs for expansion, and promising over a year of battery life under the right circumstances. If the name “Bee Motion” rings a bell, it’s because we covered the Bee Motion Mini board last month with an ESP32-C3 processor and a PIR sensor, but no USB port for programming and no expansion ability. It was just designed to be used as a battery-powered wireless PIR motion sensor. The Bee Motion expands the use cases of the solution, although it only features WiFi connectivity, and loses Bluetooth LE. Bee Motion specifications: Wireless module – Espressif ESP32-S2-MINI-1 module with Espressif ESP32-S2FH4 single-core 32-bit LX7 microcontroller @ up to 240 MHz, RISC-V ultra-low-power co-processor, 320 kB SRAM, 128kB ROM, 2.4 GHz WiFi 4 connectivity, 4MB flash, PCB antenna PIR sensor – Passive infrared motion sensor with dome lens, 5-meter […]

Bee Motion Mini board combines ESP32-C3 with PIR sensor

Designed by Smart Bee Designs, the tiny Bee Motion Mini combines an ESP32-C3 wireless RISC-V SoC with a PIR sensor for motion detection reporting over WiFi, Bluetooth LE, or Bluetooh Mesh. The board was designed to be as small as possible to fit into a 3D printed case with a LiPo battery and placed/hidden anywhere you want. Motion detection range is up to 5 meters, and the Bee Motion Mini can connect to services like MQTT, ITTT, or NodeRed to trigger other devices upon motion. Bee Motion Mini specifications: Wireless module – Espressif Systems ESP32-C3-MINI-1 module with ESP32-C3 WiFi and Bluetooth LE 5.0 RISC-V SoC up to 160 MHz, 4 MB embedded flash PIR sensor – Passive infrared motion sensor with dome lens, 5-meter range I/O- UART Tx/Rx for flashing firmware, 3.3V, and GND Misc – BOOT and RESET buttons Power Supply JST PH.20 connector for LiPo battery 3.3V via […]

Arduino Nicla Vision – A tiny STM32H7 board with 2MP camera, WiFi & Bluetooth LE, sensors

Arduino Nicla Vision is an ultra-compact (~2.3×2.3 cm) board powered by an STMicro STM32H7 dual-core Cortex-M7/M4 microcontroller, and equipped with a 2MP camera, a WiFi & Bluetooth LE module, and a few sensors. Those features make the board suitable for machine vision and edge computing applications such as asset tracking, image detection, object recognition, and predictive maintenance. For instance, image detection, facial recognition, automated optical inspection, vehicle plate reading, or gesture recognition can be added to projects, either using Nicla Vision as a standalone board or in combination with Portenta or MKR boards. Arduino Nicla Vision specifications: Microcontrollers – STMicro STM32H757AII6 dual-core MCU with Arm Cortex M7 @ 480MHz, Cortex-M4 @ 240MHz, 2 MB flash, 1MB RAM Storage – 16MB QSPI flash Connectivity – 2.4GHz WiFi 802.11b/g/n up to 65 Mbps and Bluetooth 5.1 BR/EDR/LE via Murata 1DX module Camera – 2MP GC2145 color camera. USB – Micro USB port […]

STMicro Intelligent Sensor Processing Unit (ISPU) combines MEMS sensor with DSP for AI “in the edge”

STMicroelectronics’ Intelligent Sensor Processing Unit (ISPU) is a single chip that combines a MEMS sensor together with a Digital Signal Processor (DSP) designed to run AI algorithms to let the chip make electronic decisions “in the edge” without help from the cloud or a local gateway. The ISPU is said to offer a smaller size compared to system-in-package devices, cut power consumption by up to 80%, and according to STMicro, launch the new “Onlife era” following the “Offline era” of the 2000’s where sensors were controlled by MCUs without network connectivity and the “Online era” in the 2010’s when sensors became connected to the cloud or a local gateway. ISPU key features: Enhanced 32-bit RISC Harvard architecture Extensible at the chip design phase with dedicated instructions or HW components Frequency / ODR (Output Data Rate) max – 5 MHz / 3.33 kHz – 10 MHz / 6.66kHz Four-stage pipeline 16-bit […]

Ikea PM2.5 air quality sensor’s ESP8266 hack adds WiFi, MQTT, and Tasmota support

Ikea VINDRIKTNING PM2.5 air quality sensor functionality can be augmented with an ESP8266 WiFi board or module, and open-source firmware adding MQTT, or the popular Tasmosta firmware for more features. Out of the box, Ikea air quality sensor simply shows green (good), yellow (ok), and red (not good) colors to indicate the level of pollution with PM2.5 levels. But Sören Beye (Hypfer), who also happens to have developed Valetudo firmware for smart vacuum cleaners, has added a Wemos D1 Mini board to his sensor and developed open-source firmware with MQTT support. You’ll need to open the air quality sensor, and solder three wires between the ESP8266 board and the 5V, GND, and Tx (data) pin from the Ikea VINDRIKTNING mainboard. After flashing the firmware, you still get the original LED indicator plus PM 2.5 air quality data sent over MQTT and WiFi.  The update system supports Home Assistant Autodiscovery with […]

Giveaway Week – Arduino Sensor Kit Base

Day 6 of giveaway week 2021 will be for the Arduino Sensor Kit Base, a large board with six Arduino modules with Grove connector plus an Arduino shield with Grove connector. You could use it directly on top of an Arduino UNO or compatible to have a massive shield with multiple modules connected with Grove cable, or you could break it out into smaller modules as you see fit. The kit ships in a protective carrying plastic case with six Grove cables to connect the six Arduino modules to the Grove shield in the middle of the board. I told Seeed Studio I would not have time to review it, but they still sent it to me last December. So I’m here with a kit that I’m probably never going to use so better just give it away. You can enter the draw by simply leaving a comment with your […]

Conexio Stratus – An nRF9160 board with solar energy harvesting capability (Crowdfunding)

Conexio Stratus board is equipped with Nordic Semi nRF9160 System in Package (SiP) with LTE-M (eMTC) & NB-IoT cellular IoT connectivity as well as GPS support through a pair of u.FL connectors for antennas, together with 500MB of mobile data valid for ten years. Designed for battery operation, the devkit comes with built-in battery charging, monitoring, and energy-harvesting circuitry, plus an accelerometer and a temperature and humidity sensor that makes it ideal for prototyping cellular IoT systems such as asset-tracking applications, environmental monitoring, and smart-meter monitoring, among others. Conexio Stratus board   Conexio Stratus specifications: SiP – Nordic Semi nRF9160 system-in-package with Arm Cortex M33 MCU, 1 MB Flash, 256 kB RAM, cellular IoT modem, and GPS. Cellular Connectivity 3GPP LTE release 13 Category M1 and NB1 compliant 3GPP release 14 NB2 compliant RF Transceiver for global coverage supporting bands: Cat-M1: B1, B2, B3, B4, B5, B8, B12, B13, B14, […]

Nicla Sense ME – Arduino PRO meets Bosch SensorTech’s motion and environmental sensors

Arduino is going full steam ahead with its Arduino PRO family of boards for industrial applications. After the announcement of the Portenta H7 Lite board earlier this month, the company has now introduced the Arduino Nicla Sense ME designed in collaboration with Bosch Sensortec. The Nicla Sense ME (Motion & Environment) board comes with a range of Bosch Sensortec sensors notably a 9DoF smart motion sensor and a 4DoF environmental sensor with AI capabilities, and targets industrial IoT applications either for research projects, rapid prototyping, or commercial products. Arduino Nicla Sense ME specifications: MCU – Nordic Semi nRF52832 Cortex-M4 microcontroller @ 64 MHz with 512KB Flash, 64KB RAM, Bluetooth 4.2/5.0 LE connectivity (via U-blox ANNA B112 module) Storage – 2MB SPI flash for storage; 2MB QSPI dedicated for BHI260AP Sensors BHI260AP motion sensor system with integrated AI, “Fuser 2” 32-bit Synopsys DesignWare ARC EM4 core with RISC FPU BMM150 magnetometer […]