Wio LTE - 4G, Cat.1, GNSS, Espruino Compatible


Wio Tracker is an open source gateway which enable faster IoT GPS solutions. It is Arduino and Grove compatible development boards that helps you track nearly any moving thing on the planet and then upload that data wirelessly. The Wio Tracker - LTE is the LTE version of Wio Tracker, so now we’ve got 2 versions of Wio Tracker, the 2G is like a warm-up product that bring the Wio Tracker series to the world, while the LTE (4G) version is the one that really brings some differences.

There are three main update of the Wio Tracker - LTE comparing to the 2G version. The first one, from the product name we can tell that it supports 4G communication, by inserting a 4G sim card and you can communicate with the board ever faster. The purpose of the Wio Tracker is tracking things, when it comes to GNSS, Wio Tracker - LTE supports totally 4 different systems - GPS, Beidou, GLONSS and Galileo, the QZSS is also supported. The third update is MCU, in the LTE version, we uses STM32 which is based on Cortex-M4, makes the LTE version 5 times faster than 2G version. What’s more, the flash and RAM have also been raised to 1Mbytes and 192+4k bytes.

Apart from the three main updates, the LTE version is almost the same as the 2G version. If your project is using the 2G version, it would be very easy to update to the LTE version because we have prepared transplantable and expansible AT command library. The Arduino and Grove compatibility allows for quicker development through numerous libraries and a supportive community. The GPS library which will be available with the board is not just limited to Arduino - it can function just as well if you chose to develop in C/C++. With 6 Grove connections available developers can plug in any combination of out 180+ sensors and actuators to make any project and solve any problem. Simplifying the prototyping and development phase is our goal.

The Wio Tracker - LTE is well suited for outdoor projects where the device can connect to the GPS satellites and provide a real-time location of the item it is attached to. The LTE provides a wide bandwidth which allows much faster interaction between the user and device. Some example projects could be a bicycle sharing service, tracking pets or livestock, locating a vehicle, or even keeping track of a child.


  • Low-cost, low-power LTE connectivity optimized for broad- band IoT applications
  • Worldwide LTE and UMTS/HSPA+
  • Embedded power management unit (PMU) featuring ultra-low deep-sleep current consumption
  • GPS/BeiDou/GLONASS/Galileo and QZSS
  • Transplantable and expansible AT Command Library for Wio Tracker
  • Arduino IDE compatible
  • 6 Grove Connectors
  • Nano SIM and TF card 2 in 1 socket


Item Function Value
Microcontroller Processor STM32F405RG, ARM 32-bit Cortex-M4, 168MHZ
Flash Memory 1MB
SRAM 192+4KB
Operating Voltage 3.3V
DC Current per I/O Pin 7 mA
LTE LTE Cat.1 FDD LTE: B2/B4/B12 WCDMA: B2/B4/B5
AT Command: 3GPP TS27.007 and enhanced AT Commands
Data LTE-FDD Max 10Mbps(DL) Max 5Mbps (UL)
SMS Peer to Peer Message, SMS broadcast, Text and PDU mode
Audio Echo cancellation, Noise elimination
Precision <2.5 m CEP
Peripheral Grove 2 x Grove Digital Port
2 x Analog Port
1 x UART
1 x I2C
Antenna 2 x LTE Antenna
1 x GPS Antenna
Others USB: Power supply and upload program
JST 1.0 connecter for battery
3.5mm Audio Jack
MCU Reset Button, EC21 Power Button
1 x User RGB LED SK6812
Nano SIM and TF card 2 in 1 socket
Size Length 54.7mm
Width 48.2mm

Application Ideas

  • Pedometer
  • Smart ski
  • Smart two-wheeler
  • Sharing bicycle
  • Pet tracking machine
  • Children location watch
  • Smart watch
  • Transportation location system
  • Vehicle location system
  • Property safety


Use Grove modules to expand your application

There are 6 Grove connects on board. If this is your first time to hear about Grove, please put had on Grove System for more details. In brief, Groves is hundreds of sensor that in standard style, which is consist of sensors, actuators, displays as well as communication.

Hardware Overview


If you want to use the on-board Grove connector, please use digitalWrite(12, HIGH) to open 3V3_B. Otherwise you can’t provide power to Grove modules.

Help us make it better

Welcome to the new documentation system of Seeed Studio. We have made a lot of progress comparing to the old wiki system and will continue to improve it to make it more user friendly and helpful. The improvement can't be done without your kindly feedback. If you have any suggestions or findings, you are most welcome to submit the amended version as our contributor via Github or give us suggestions in the survey below, it would be more appreciated if you could leave your email so that we can reply to you. Happy Hacking!