Dragino LHT65 is a $30 LoRaWAN Temperature & Humidity Sensor

LHT65 LoRaWAN Temperature & Humidity Sensor

If you’d like to monitor temperature and/or humidity in remote locations, one way is to get a LoRaWAN gateway, and setup a few LoRaWAN nodes connected to your own temperature & humidity sensors, and add a battery and enclosure. But if you’d like to save some time, and get a turnkey solution, Dragino LHT65 LoRaWAN temperature & humidity sensor may be an option. The sensor comes with an internal SHT20 sensor, and as well as an external DS18B20 waterproof temperature sensor. Features & specifications: LoRa Connectivity Frequency Bands  – CN470, EU433, KR920, US915, EU868, AS923, AU915 LoRaWAN Class A protocol Sensors Sensirion SHT20 (internal) Temperature – Range: -40 ~ 125 °C; 0.1°C resoultion; +/-0.3°C accuracy; long term drift < 0.02 °C/yr Relative Humidity – Range: 0 to 100%; resolution: 0.04%; accuracy +/-0.3%; DS18B20 (external) – Range: -55 °C~ 125 °C; resolution: 0.0625 °C; +/-0.5°C accuracy from -10°C to +85°C; +/-2°C accuracy  outside this range Data Storage – Up to 3200 …

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Dragino LoRaST M.2 LoRa Card Convert Compatible Platforms into LoRa Nodes

Dragino LoRaST

Modern motherboards or single board computers often expose mPCIe or M.2 / NGFF socket, and we’ve seen it was possible to easily add a LoRa radio using RAK833 mPCIe LoRaWAN gateway card to hardware with an mPCIe (USB/SPI) socket. You can now do something similar with Dragino LoRaST M.2 LoRa card by inserting into a spare M.2 / NGFF socket. There’s an important distinction however, as while RAK833 is designed for LoRa gateways, LoRaST is based on SX1276/SX1278 for LoRa end nodes. Dragino LoRaST M.2 LoRa card specifications: MCU – STMicro STM32L072CZT6 Arm Cortex M0+ MCU @ 32 MHz with 192 KB flash,  20 KB of RAM, 6 KB data EEPROM LoRa Connectivity Semtech SX1276/78 LoRa Wireless Modem Available Bands – 433/868/915/920 Mhz Built-in antenna or optional external antenna via I-PEX connector Host interface – Standard M.2 (NGFF) interface Supply Voltage – 1.8V ~ 3.6V Dimensions – 22 x 42 x 3.6 mm Weight – 4g Temperature Range – -40 …

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Dragino NB-IoT Bee is a $23 Xbee Compatible NB-IoT Add-on Board

Several companies are already offering XBee NB-IoT add-on board including Digi International themselves, and SODAQ with their NB-IoT Bee N211 module going for 69 Euros. Dragino NB-IoT Bee is another option for NB-IoT connectivity using Xbee form factor,  and the board should be cheaper than most as it goes for $23.00 on Tindie with an external antenna. NB-IoT Bee specifications: NB-IoT module Quectel BC95-B5 for B5:850Mhz, B8:900Mhz, or B20:800Mhz in respectively Nb-IoT Bee QB05, QB08, QB20 models (i.e. one frequency is supported by model) Quectel BG96 for  LTE Cat M1 & Cat NB1 & EGPRS in Nb-IoT Bee QG96 model Output Powe  – 23dBm Sensitivity – -129dBm Micro SIM Slot Input voltage – 4.5v ~ 5.5V Temperature Range – -40°C ~ +85°C Typical applications for such board include smart metering, facility management services, security & fire alarms, asset tracking, smart city infrastructure and so on. If you are looking specifically for Nb-IoT Bee QG96 add-on board, it’s currently out of …

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Dragino OLG01 Outdoor Single Channel LoRa Gateway Runs OpenWrt, Supports Passive PoE

Dragino Technology, a Shenzhen based startup focusing on the Internet of Things, had already designed LoRa shields & Hats for Arduino & Raspberry Pi boards which can be useful for LoRa nodes, but the company has now launched Dragino OLG01 LoRa gateway running OpenWrt that communicates with nodes over LoRa, and to the cloud using WiFi, Ethernet, or 3G/4G. Dragino OLG01 specifications: WiSoC – Atheros AR9331 MIPS processor @ 400MHz System Memory – 64MB RAM Storage – 16MB flash MCU – Atmel ATMega328P AVR MCU with 32KB flash, 2KB SRAM Connectivity 802.11 b/g/n WiFi with antenna 2x 10/100M Ethernet with support for passive PoE Optional 3G/4G module connected to internal USB socket (TBC) Semtech SX1276/78 LoRa wireless module + SMA connector (antenna not provided) up to 5~10 km range USB – 1x USB 2.0 host port Power Supply – 12V DC power jack or PoE Three models are offered with 433, 868, or 915 MHz frequencies: OLG01 433, OLG01 868, …

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Dragino LoRa/GPS HAT Board for Raspberry Pi Sells for $32

There are several ways to play with LoRaWAN protocol on the Raspberry Pi including RisingHF Discovery kit or Cooking Hacks LoRa Shield for Raspberry Pi, but the latter requires you to spend close to $100 just for the shield, the complete Lora discovery kit costs close to $400. Dragino Tech LoRa/GPS HAT board should be a more cost effective way to get started with LoRa on Raspberry Pi, as it sells for $32 + shipping on Tindie. Dragino LoRa/GPS HAT specifications: Connectivity LoRa Semtech SX1276/SX1278 transceiver @ 433/868, or 915 MHz (Country dependent, pre-configured in the factory) 168 dB maximum link budget. +20 dBm – 100 mW constant RF output vs. +14 dBm high efficiency PA. Programmable bit rate up to 300 kbps. GPS L80 GPS module based on Mediatek MT3339 SoC Horizontal Position Accuracy: autonomous <2.5 m CEP. [email protected] with EASY (AGPS): Cold Start <15s,Warm Start <5s,Hot start <1s; [email protected] without EASY (AGPS):Cold Start <35s,Warm Start <30s,Hot Start <1s. …

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