HELTEC Wireless Tracker – Compact IoT Board Built on ESP32-S3FN8 microcontroller Designed for low-power, long-range wireless communication Integrated SX1262 LoRa transceiver + UC6580 GNSS chipset Supports multi-constellation satellites: GPS, GLONASS, BeiDou (BDS), Galileo, NAVIC, QZSS Dual-frequency positioning (L1 + L5/L2) → fast, stable & highly accurate, even in weak urban signals Connectivity Options: Wi-Fi Bluetooth LoRa → perfect for Meshtastic mesh networks, GPS nodes & IoT projects (asset tracking, bike navigation, pet monitoring, child safety) Features: 0.96" OLED display → real-time diagnostics & status feedback USB Type-C interface → fast data transfer & easy power management Integrated lithium battery charging → portable use without external modules Developer-Friendly: Fully compatible with Arduino IDE Beginner-friendly yet powerful for custom LoRa solutions, low-power GPS nodes, and IoT devices Ideal for smart mobility prototypes & remote sensing deployments Features ESP32-S3FN8 + SX1262 + UC6580 Chipset Combines a high-performance ESP32-S3 microcontroller, SX1262 LoRa transceiver, and UC6580 GNSS module, supporting Wi-Fi, Bluetooth, LoRa, and multi-constellation GNSS for versatile wireless communication and positioning. Ultra-Low Power GNSS Architecture Built on advanced 22nm technology, the dual-frequency GNSS design ensures minimal power consumption—ideal for battery-powered IoT tracking devices. L1 + L5/L2 Dual-Band GNSS Support Compatible with GPS, GLONASS, BeiDou (BDS), Galileo, NAVIC, and QZSS, enabling fast, accurate, and stable positioning even in urban or obstructed environments. USB Type-C Interface with Full Protection Features onboard voltage regulation, ESD protection, short-circuit protection, and RF shielding, ensuring safe and reliable operation during development and deployment. Integrated Battery Management via SH1.25-2 Interface Supports charging, overcharge protection, voltage detection, and automatic power switching, simplifying power management for mobile applications. Antenna Configuration Includes a 2.4GHz spring antenna for Wi-Fi/Bluetooth, plus IPEX (U.FL) connectors for external LoRa and GNSS antennas, offering flexible deployment options. 0.96" LCD Display (160×80 Resolution) Provides real-time feedback for debugging, battery status, and system diagnostics, enhancing usability during field testing and development. Arduino IDE Compatibility Fully supported by the Arduino IDE, making it easy for developers to build custom Meshtastic GPS nodes, low-power LoRa solutions, and IoT tracking systems. Specifications Parameters Description Master Chip ESP32-S3FN8 (Xtensa32-bit lx7 dual core processor) LoRa Chipset SX1262 GNSS Chipset UC6580 Frequency 470~510MHz,863~928MHz Max. TX Power 21±1dBm Max. Receiving Sensitivity -134dBm Wi-Fi 802.11 b/g/n, up to 150Mbps Bluetooth LE Bluetooth 5,Bluetooth mesh Hardware Resource 7*ADC1 + 2*ADC2; 7*Touch;3*UART;2*I2C; 2*SPI; etc. Interface Type-C USB;2*1.25 lithium battery interface;LoRa ANT(IPEX1.0);2*18*2.54 Header Pin Battery 3.7V lithium battery power supply and charging Operating Temperature -20 ~ 70 ℃ Dimensions 65.48 * 28.06* 13.52mm Pinout High light Meshtastic network support Complete Meshtastic network support. USB Type C The power supply, firmware download, and debugging interfaces adopt a more universal USB Type C interface, making development work more convenient. Intergrated UC6580 GNSS chip and antenna UC6580 is a L1 + L2/L5 GNSS chip, supports GPS, GLONASS, BDS, Galileo, NAVIC, QZSS multi-system joint positioning. Onboard LCD Display The integrated LCD display can be used to show some information such as system status and parameters, making it convenient for users to directly use the entire development board for their own product design. FAQ If you encounter an issue where your device is unable to download a program, you can follow these steps to resolve it. 1. Check if the USB cable supports data transfer by verifying if the connected cell phone supports file transfer. 2. Connect the USB cable, press and hold the ‘USER’ key, then press the ‘RST’ key once. Finally, release the ‘USER’ key to initiate the code download. Upon downloading the code, if the screen does not respond? Connect the serial port and check whether the node is activated. If the node is not activated, refer to this link to activate it: https://docs.heltec.org/general/how_to_use_license.html. GNSS data is displayed as ‘0,0,0’ ? Confirm your hardware version, V1.1 has changed the power control pin of the GNSS chip (GPIO 3 is set to HIGH on). Please carefully review the schematic or refer to the corresponding hardware version’s example program. GNSS requires open outdoor environments or try with an external antenna. How can LoRa be useful in your home automation projects? LoRa technology offers a powerful solution for long-range, low-power wireless communication, making it ideal for home automation scenarios where Wi-Fi coverage is limited or unreliable. For example, imagine you want to monitor soil moisture in a field near your house. Although the distance isn’t far, the area may lack stable Wi-Fi connectivity. In this case, you can deploy a sensor node using an ESP32 microcontroller paired with a moisture sensor. This node collects data and transmits the readings once or twice a day via LoRa to another ESP32 device located within Wi-Fi range. The receiving ESP32 can then host a web server to display the moisture data in real time, allowing you to track conditions remotely from your phone or computer. This setup demonstrates how LoRa-enabled ESP32 boards can be used to build wireless sensor networks for environmental monitoring, garden automation, or remote asset tracking—all without relying on continuous Wi-Fi coverage. With LoRa’s extended range and minimal power consumption, it’s a practical and scalable choice for smart home and outdoor automation projects. Meshtastic firmware can’t operation the V1.1’s GNSS? This issue had been well solved in the last update. The firmware will automatically recognize the device version and operation it. Docs & Resource [Resource] — Heltec ESP32 framework and lib installation [Resource] — Hardware Update Logs [Resource] —Datasheet [Resource] —Schematic_Diagram [Resource] —User Manual Document [Resource] — Heltec LoRaWAN test server based on SnapEmu Project How to make heltec wireless tracker battery last longer Monitor Heart Rate on SnapEmu with a Wireless Tracker Packing list The default packing list without selecting any accessories is as follows: Item Quantity Wireless Tracker x1 LoRa Antenna x1 SH1.25×2 Battery Connector x1 Pin Header x2
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