Sensirion SCD40 CO2 sensor units for makers: M5Stack UNIT CO2 and TeHyBug ESP8285 device

M5Stack UNIT CO2

We just wrote about the Infineon XENSIV PAS CO2 Shield2Go board to measure carbon dioxide (CO2) levels last week, but I’ve just come across two more hardware with a CO2 sensor designed for makers, but based on Sensirion SCD40 sensor instead, and mostly designed to monitor indoor CO2 levels since high concentrations may impact your health negatively. The first one is the M5Stack UNIT CO2 that’s designed to be connected to one of the company’s Core modules through an I2C interface, and TeHyBug portable mini sensor device equipped with ESP8285 WiFi microcontroller, as well as optional AHT10 temperature & humidity sensor and BMP280 pressure sensor, besides the SCD40 sensor. M5Stack UNIT CO2 Specifications: Sensirion SCD40 sensor CO2 Measurement range – 400 ~ 2000 ppm CO2 Sampling accuracy – ±(50 ppm + 5% of reading) Temperature range – -10 – 60°C with 0.8°C   accuracy Humidity range – 0 – 95% RH […]

Wi-SUN: An LPWAN standard for Smart Cities, Smart Agriculture, large scale IoT deployments

Wi SUN network architecture

Wi-SUN is a standard (IEEE 802.15.4g) managed by the Wi-SUN Alliance and designed for Smart Cities, Smart Agriculture, and other large scale IoT deployments with a large number of devices thanks to the use of IPv6 mesh networking. The organization was founded in 2011 to “support the worldwide development of Wireless Communications Networks for Utilities, Smart Cities and IoT”, but due to the niche nature of target applications, it does not get that much press coverage and was only recently brought to my attention. Wi-SUN stands for “Wireless Smart Utility Networks”or “Wireless Smart Ubiquitous Networks”, and the standard aims to connect streetlights, cameras, weather stations, smart metering, utility transmission systems, and others to enable data-sharing between city services to improve their efficiency, save costs, and offer improves services to citizens. Wi-SUN FAN (Field Area Network) is the latest protocol managed by the Wi-SUN Alliance with over 95 million units shipped […]

DAQiFi Nyquist 1 – A battery-powered Wi-Fi IoT data acquisition system (Crowdfunding)

DAQiFi Nyquist 1 WiFi IoT data acquisition system

DAQiFi Nyquist 1 is a battery-powered IoT data acquisition (DAQ) device that works over an 802.11n Wi-Fi connection or a USB interface, and can also log the data to a microSD card Equipped with 16 digital I/Os and 16 analog inputs, the Nyquist 1 can be used with all sorts of sensors to measure force and strain, pressure, temperature, current & voltage, luminosity, weight, pH angular velocity, and more. It’s also possible to connect multiple Nyquist 1 devices to a single PC instead of following the traditional method of having one dedicated PC plugged into each data acquisition solution. DAQiFi Nyquist 1 hardware specifications: MCU – Unspecified Microchip microcontroller Storage – MicroSD card slot for data logging Wireless – 802.11n Wi-Fi via Microchip ATWINC1500 wireless module USB – 1x USB 2.0 port 16x analog inputs 0-5V, 12 bit 10 kHz aggregate streaming 160 kHz+ aggregate logging Up to 4 differential […]

ESP32 board supports 2.4Ghz LoRa with SX1280 RF transceiver

LilyGO LoRa V1.8 SX1280 antenna headers

We’ve seen plenty of ESP32 LoRa boards with the traditional 433 MHz, 868 MHz, or 915MHz frequencies, but I think LilyGO LoRa V1.8 (aka T3 V1.8) is the first ESP32 board that integrates a Semtech SX1280 transceiver for the 2.4GHz LoRa standard used for global coverage, notably maritime applications, and ranging. The ESP32 & SX1280 board also offers 26 pins for expansion, a microSD card for data storage, a 2-pin connector for batteries, a 0.96-inch OLED for information display, and comes with a 3D antenna and u.FL connector for WiFi and Bluetooth, and an SMA antenna for LoRa connectivity. LilyGO LoRa/T3 V1.8 specifications: SoC – Espressif ESP32 dual-core Xtensa LX6 processor with 2.4 GHz WiFi 4 and Bluetooth 4.2 Storage – 4MB SPI flash, microSD card slot Display – 0.96-inch OLED display with 128×64 resolution (SSD1306 I2C driver) Connectivity 802.11 b/g/n WiFi 4 up to 150 Mbps +  Bluetooth 4.2 […]

$7 Lolin S3 ESP32-S3 board ships with MicroPython firmware

Lolin S3 ESP32-S3 board

Lolin S3 is the first ESP32-S3 board from the company, but instead of using the more compact D1 mini form factor, the board features a longer design with two rows of 20 pins offering up to 31 GPIOs. Based on ESP32-S3-WROOM-1 module, the board features 16MB QSPI flash, 8MB SPRAM, two USB Type-C OTG and UART ports, a Lolin I2C port, an RGB LED, as well as Reset and user buttons. Lolin S3 specifications: Wireless module – ESP32-S3-WROOM-1 module with: Espressif Systems ESP32-S3 dual-core Tensilica LX7 @ up to 240 MHz with vector instructions for AI acceleration, 512KB RAM, 2.4 GHz WiFi 4 and Bluetooth 5.0 LE with support for long-range, up to 2Mbps data rate, mesh networking 16MB QSPI flash 8MB PSRAM PCB antenna USB – 2x USB Type-C ports, one OTG port, one UART port for programming and debugging Expansion 2x 20-pin headers with up to 31x GPIO, […]

UP Squared 2 is a compact Elkhart Lake SBC with Celeron N6210 or Pentium J6426 processor

UP Squared V2

UP Squared 2 is a compact single board computer powered by either an Intel Celeron N6210 or Pentium J6426 “Elkhart Lake” processor with up to 16GB RAM, 64GB eMMC flash, 4K capable HDMI and DisplayPort video outputs, two Gigabit Ethernet ports, and more. Slightly smaller than two business cards, the UP Squared 2 is an upgrade of the UP Squared SBC introduced in 2016 with Intel Celeron N3350 or Pentium N4200 “Apollo Lake” processor. The new board offers virtually the same features, except the two HDMI ports, have been replaced by one HDMI port, and one DisplayPort connector, the mini PCIe slot is gone in favor of an M.2 NVMe socket, the Altera FPGA has been removed, and the new system provides overall better specifications in terms of CPU/GPU performance. UP Squared V2 specifications: Elkhart Lake SoC (one or the other) Intel Celeron N6210 dual-core processor up to 2.6 GHz […]

Robustel industrial IoT gateways run Debian-based OS, offer 5G, 4G LTE, LoRaWAN connectivity

Robustel EG5120 industrial IoT gateway

Robustel has launched three Arm-based industrial IoT gateways namely the EG5100, EG5120, and LG5100 that offer 5G, 4G LTE, and/or LoRaWAN connectivity, and runs Debian 11-based RobustOS Pro Linux operating systems The edge gateways also feature two Ethernet ports, two RS232/RS485 ports for connection to industrial devices, digital inputs and outputs for simple monitoring and control, and support a wide 9 to 60V DC power input through a 2-pin terminal block. Robustel LG5100, EG5100, and EG5120 specifications: SoC/memory/storage LG5100 and EG5100 Unnamed quad-core Cortex-A7 processor @ 792 MHz (possibly NXP i.MX 7ULP) 512MB DDR3 8GB eMMC flash EG5120 Unnamed quad-core Cortex-A53 processor @ 1.6 GHz with 2.3 TOPS NPU (very likely NXP i.MX 8M Plus) 2GB DDR4 16GB eMMC flash, microSD card socket Connectivity LG5100 2x 10/100 Mbps Ethernet ports with support for 802.3af PD feature on eth0 LoRaWAN connectivity with 1x SMA antenna connector, support for EU868, AU915, CN470 […]

Wireless M-Bus & LTE Cat 1 sensor board also supports Zigbee 3.0, Z-Wave, Bluetooth LE 5.0, LoRa…

Geniatech SBC32IM

Geniatech SCB32IM is a sensor board based on Silicon Labs EFR32FG14 Arm Cortex-M4 microcontroller with a sub-GHz radio enabling wireless M-Bus (Wireless Meter Bus) designed for remote reading of smart meters, and also equipped with a Quectel EC200S “IoT/M2M-optimized” LTE Cat 1 module. The sensor module does not actually come with any sensor on board, but provides a terminal block to connect any sensor you may need for your product. It’s also possible to extend wireless connectivity options with Zigbee 3.0, Z-Wave, Bluetooth LE 5.0, LoRa, and more through the GT-IoT interface with UART, SPI, and one GPIO. Geniatech SBC32IM specifications: Microcontroller – Silicon Labs EFR32FG14 Aem Cortex-M4 MCU @ 40MHz with up to 256 KB flash, 32 KB RAM, and proprietary 2.4GHz and sub-GHz radios Wireless connectivity Wireless M-Bus S Mode: 868 MHz band T Mode: 868 MHz band C Mode: 868 MHz band N Mode: 169 MHz band […]

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