AS923 LoRa GPS Tracking with MatchX MatchBox Gateway and RAK811 LoRa GPS Tracker Board

RAK811 Cayenne LPP Data

Earlier this month, I installed Match MatchBox LoRa outdoor gateway close to the roof, and showed how easy it was easies to setup with MatchX Cloud. Basically, you just register to the cloud, enter the serial number, and the gateway is automatically based on your location. I’m in South East Asia, so the gateway was configured with AS923. I’ve now had time to play with the gateway using Rak Wireless RAK811 LoRa tracker board, and eventually managed to get the tracker location to show up on a map. It was my first experience with LoRaWAN, and I had to learn a lot, and overcome many issues from outdated software development tools, different data formats, and some interoperability issues between all components involved. I’ll document all that in this review, and hopefully it will help others. RAK811 LoRa GPS Tracker Unboxing Before going into LoRa configuration, I’ll show what I got […]

Design ESP32 LoRa GPS Tracker Applications with TTGO T-Beam Board

TTGO-T-Beam

TTGO introduced a small ESP32 LoRa board with OLED display last year that is still selling  for around $14 shipped. But the company is now back with a similar board called TTGO T-Beam that does without the display, but adds GPS support, and a 18650 battery holder, so it should be ideally suited for all sorts of LoRa GPS tracking applications. TTGO T-Beam board specifications: SoC – Espressif ESP32 dual core Xtensa LX6 processor with WiFi and Bluetooth Memory – PSRAM Storage – 4MB SPI flash Connectivity 802.11 b/g/n WiFi up to 150 Mbps +  Bluetooth 4.2 Classic and LE with “3D antenna” soldered on PCB LoRa 433, 868, and 915 MHz versions with SMA antenna Transmit current – 120 mA @ +20dBm; 90 mA @ +17dBm; 29mA @ +13dBm Receive sensitivity -139dBm with LoRa & 62.5Khz & SF=12 & 146bps -136dBm with LoRa & 125Khz & SF=12 & 293bps […]

Tail it is a Family of WiFi & Cellular GPS Trackers for Things, Pets, and Bicycles (Crowdfunding)

Tail It Cellular GPS Tracker

We’ve previously written about Ping, a tiny Cellular GPS tracker that promised to last 3 months on  a charge. The raising money part of the crowdfunding campaign itself was successfully with over one million dollars raised, but as with many such campaigns there have been delays, and some people still have to receive theirs, not to mention people complaining about poor battery life and other issues. But there seems to be another option now with Tail It Technologies now offering four different “Tail it” cellular GPS trackers (with WiFi too) for things, pets, and even one designed specifically for bicycles. The company has already sold their devices to thousands of customers in Norway, so they should be working, and on-time delivery should hopefully not be an issue. All four GPS trackers come with 2G, 3G, 4G, and WiFi connectivity,  a 5-meter accuracy, and share the same electronics and firmware. Here’s […]

Wio LTE GPS Tracker Board Gets a Cat M1/NB1 Version for $59

Seeed Studio launched a family of GPS tracker boards staring with Wio GPS with 2G cellular connectivity, followed by Wio LTE board offering 4G connectivity several months later. The company is taking pre-order for an LTE Cat M1/NB1 version with NB-IoT / eMTC connectivity, and going for $59 plus shipping. The board is expected to start shipping on July 25th. Wio LTE Cat M1/NB1 board specifications: MCU – STMicro STM32F405RG Arm Cortex-M4 @ 168MHZ with 1M Flash, 192+4KB RAM Connectivity LTE uBlox SARA-R410M module LTE CAT M1 and NB-IoT Cat M1 Half-duplex (375 kb/s DL and UL) Cat NB1 Half-duplex (27.2 kb/s DL, 62.5 UL) Nano SIM and micro SD card 2-in-1 socket GNSS uBlox MAX-M8Q module PS, BeiDou, GLONASS, and Galileo 2.5m CEP(GPS), 4.0m CEP(GLONASS) USB – 1x micro USB port for power supply and DFU Expansions – Grove headers: 2x digital, 2x analog, 1x UART, 1x I2C Misc […]

RAK831 Lite is a $200 LoRa / LoRaWAN Gateway based on Raspberry Pi 3 Board

RAK831 Lite LoRaWAN Gateway

RAK831 is a Semtech SX1301 based LoRa gateway module that was released by RakWireless in 2017. The board has since then be sold as part of the company’s LoRa gateway developer kit with a Raspberry Pi  and a MAX-7Q GPS Module. But now RakWireless offers a nicely packaged solution with Raspberry Pi 3 board, RAK831 module, a GPS board, an enclosure, antenna, and power supply which they call RAK831 Lite, and sells for just $199 + shipping ($6.45 extra here).RAK831 Lite gateway main components and specifications: Main board – Raspberry Pi 3 development board with Broadom BCM2837 processor, 1GB RAM,  micro SD card slot, Fast Ethernet, 4x USB ports, HDMI output, audio jack Connectivity RAK831 LoRa Concentrator  board based on SX1301 chipset RF frequencies – 433, 470, EU868, AS923, AU915, and US 915 Rx Sensitivity – -140 dBm Tx Power – Up to 25.5 dBm at settings 27 dBm SMA […]

Sony SPRESENSE Arduino Compatible GNSS + Audio IoT Board To Sell for $50 (in Japan)

Sony-Spresense-Arduino-Board

Last year,  we covered Sony Spritzer, an Arduino compatible with a Sony hexa-core Arm Cortex-M4F micro-controller, a built-in GNSS receiver, and an audio codec. The product page for this product is now gone, but it appears Sony only renamed it to SPRESENSE, made some design modifications, and is ready to launch the main board for 5,500 JPY (~$50), and the extension board for an extra 3,500 JPY ($32) on July 31, 2018. Sony SPRESENSE main board (CXD5602PWBMAIN1) specifications: MCU – Sony CXD5602 ARM Cortex-M4F ×6 micro-controller clocked at up to 156 MHz with 1.5MB SRAM Storage – 8MB Flash Memory GNSS – GPS & GLONASS Audio – 3.5mm audio jack Expansion I/Os Digital I/O Pins – GPIO, SPI, I2C, UART, PWM, I2S Analog Pins – 2ch (0.7V range) Camera interface USB – 1x micro USB port for programming and power Power Supply – 5V via micro USB port Dimensions – […]

96Boards GPS Mezzanine is the First Add-on Board part of 96boards Community Mezzanine Initiative (Group Buy)

96Boards hardware development platforms support add-on boards called Mezzanines, and you’ll find a bunch of them on 96Boards website. Most are designed and manufactured by companies, but in order to bring more (individual) open source hardware developers on-board, the 96Boards Community Mezzanine initiative was launched to bring industry representatives and community members together. The idea is to encourage people to submit their KiCad/Altium 96boards’ mezzanine designs to the github repository, and the manufacturing costs of the most popular designs can be lowered  by offering them through GroupGets group buying platform. The first of those boards to be launched is 96Boards GPS Mezzanine with the following specifications for the R1 board: Adafruit Ultimate GPS Module PA6H_1103854 – 66 channel w/10 Hz updates MTK3339 chipset -165 dBm sensitivity External u.FL antenna connector Fix and PPS signals brought to down baseboard Expansion – USB UART breakout,  breakout headers for I2C, SPI, GPIO, and […]

RAK8211-NB iTracker Battery / Solar Powered Module Comes with NB-IoT & Bluetooth 5 Connectivity, GPS, and 5 Sensors

RAK8211-NB-iTracker

Rak Wireless has recently launched a new products called RAK8211-NB iTracker based on a Quectel BC95-G NB-IoT module, Nordic Semi nRF52832 Bluetooth 5 chip, and Quectel L70-R GNSS module. The asset tracker module also comes with 5 different sensors to monitor motion and environmental data, and can optionally be powered directly by a solar panel.RAK8211-NB iTracker specifications: Connectivity NB-IoT via Quectel BC95-G (Global) wireless communication module + SIM card socket Bluetooth 5 via Nordic Semi nRF52832 Arm Cortex-M4F micro-controller (Arduino compatible) GPS/GLONASS via Quectel L70 GNSS module Sensors LIS3DH 3-axis “nano” accelerometer LIS2MDL 3-axis digital magnetic sensor. Tilt sensor BME280 pressure, humidity and temperature sensor OPT3001 intensity of light sensor Expansion – 3x headers with SWD, 2x sensor out + tilt out (also usable as GPIO and analog inputs), 3.3V, GND, and reset Power Supply – 3.5V to 18V via solar panel (P2) or battery (P3) Dimensions – 43mm x […]

EmbeddedTS embedded systems design