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Ryan Malloy e3642cbc4e Initial commit: Heltec Wireless Tracker documentation site 
Astro/Starlight documentation covering hardware specs, pinout,
schematics, GNSS protocol, LoRa frequencies, and getting started
guides. Includes extracted datasheet images and Docker deployment.
2026-02-21 18:39:46 -07:00

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# Document Metadata
**Format:** PDF 1.7
**Author:** Aaron Lee
**Creator:** WPS 文字
**Creation Date:** D:20241224151548+08'00'
**Mod Date:** D:20241224151548+08'00'
---
## Page 1
https://heltec.org
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Heltec Automation © Limited standard files
Wireless Tracker V1.1
Wi-Fi/LoRa/BLE/GNSS(L5)
Development Kit
![Image 1 from page 1](../images/wireless-tracker-datasheet_page_1_img_1.png)
![Image 2 from page 1](../images/wireless-tracker-datasheet_page_1_img_2.png)
## Page 2
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Document version
Version
Time
Description
Remark
V1.0
2023-05-16
Documents creating
Richard
V1.1
2023-05-21
Document structure update
Richard
V1.1.1
2024-10-10
Update the GNSS module parameter description
Richard
Copyright Notice
All contents in the files are protected by copyright law, and all copyrights are
reserved by Chengdu Heltec Automation Technology Co., Ltd. (hereinafter referred to
as Heltec). Without written permission, all commercial use of the files from Heltec
are forbidden, such as copy, distribute, reproduce the files, etc., but non-commercial
purpose, downloaded or printed by individual are welcome.
Disclaimer
Chengdu Heltec Automation Technology Co., Ltd. reserves the right to change,
modify or improve the document and product described herein. Its contents are
subject to change without notice. These instructions are intended for you use.
## Page 3
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Content
Wireless Tracker...................................................................................................................................1
Document version.................................................................................................................................2
Copyright Notice................................................................................................................................... 2
Disclaimer............................................................................................................................................. 2
Content..................................................................................................................................................3
1. Description........................................................................................................................................ 4
1.1 Overview.................................................................................................................................... 4
1.2 Product features.........................................................................................................................5
2. Pin Definition.....................................................................................................................................6
2.1 Pin assignment...........................................................................................................................6
2.2 Pin description............................................................................................................................7
3. Specifications.................................................................................................................................. 10
3.1 General specifications..............................................................................................................10
3.2 Power supply............................................................................................................................11
3.3 Power output............................................................................................................................11
3.4 Power characteristics...............................................................................................................12
3.5 LoRa RF characteristics............................................................................................................ 12
3.6 GNSS Characteristics................................................................................................................14
4. Typical hardware connections........................................................................ 错误！未定义书签。
4.1 Physical dimensions................................................................................................................. 16
5. Resource..........................................................................................................................................16
5.1 Relevant Resource....................................................................................................................16
5.2 Contact Information.................................................................................................................16
## Page 4
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# 1. Description
## 1.1 Overview
Wireless Tracker is a development kit based on ESP32-S3FN8. It integrates both SX1262 and
UC6580 to provide fast GNSS solution for IoT. Collaborate with the sample programs and
development tools we provide, you can track any object and then upload that data wirelessly
by Wi-Fi, Bluetooth, LoRa.
Wireless Tracker supports L1 + L5 and supports GPS, GLONASS, BDS, Galileo, NAVIC, QZSS
multi-system joint positioning. It is perfectly compatible with Arduino, can be widely used in
development such as bicycle sharing services, tracking pets or livestock, locating vehicles,
tracking children, etc.
Wireless Tracker are available in two product variants:
### Table 1.1: Product model list
| No. | Model | Description |
|-----|-------|-------------|
| 1 | Wireless Tracker-LF | 470~510MHz working LoRa frequency, used for China mainland (CN470) LPW band. |
| 2 | Wireless Tracker-HF | For EU868, IN865, US915, AU915, AS923, KR920 and other LPW networks with operating frequencies between 863~928MHz. |
## Page 5
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## 1.2 Product features
- ESP32-S3FN8+SX1262+UC6580 Chipset, supports Wi-Fi, LoRa, Bluetooth, GNSS.
- Low power design of dual-frequency multi-system based on 22nm technology.
- Supports L1 + L5, supports GPS, GLONASS, BDS, Galileo, NAVIC, QZSS multi-system joint positioning.¹
- Type-C USB interface with a complete voltage regulator, ESD protection, short circuit protection, RF shielding, and other protection measures.
- Onboard SH1.25-2 battery interface, integrated lithium battery management system (charge and discharge management, overcharge protection, battery power detection, USB / battery power automatic switching).
- Onboard Wi-Fi, Bluetooth dedicated 2.4GHz metal spring antenna, reserved IPEX (U.FL) interface for LoRa and GNSS use.
- Onboard 0.96-inch 80(H) x 160(V) RGB TFT-LCD display, which can be used to display debugging information, battery power, and other information.
- Support the Arduino development environment.
¹ See the GNSS module manual for details on supported projects: UFirebird_Standard Positioning Products Protocol Specification
## Page 6
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# 2. Pin Definition
## 2.1 Pin assignment
![Pin Assignment](../images/wireless-tracker-datasheet_page_6_img_1.png)
## Page 7
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## 2.2 Pin description
### Header J2
Table 2-2-1: Pin description
| No. | Name | Type | Function |
|-----|------|------|----------|
| 1 | 5V | P | 5V Power Supply |
| 2 | GND | P | Ground |
| 3 | 3V3 | P | Output 3.3V |
| 4 | GND | P | Ground |
| 5 | 3V3 | P | Output 3.3V |
| 6 | GND | P | Ground |
| 7 | Vext | P | Output 3.3V, power supply for built-in TFT and GNSS |
| 8 | GND | P | Ground |
| 1 | RST | P | RST_SW |
| 2 | 0 | I/O | GPIO0, USER_SW |
| 3 | 1 | I/O | GPIO1, Vbat_Read², Touch1, ADC1_CH0 |
| 4 | 2 | I/O | GPIO2, ADC Ctrl, Touch1, ADC1_CH0 |
| 5 | 3 | I/O | GPIO3, Vext Ctrl, Touch1, ADC1_CH0 |
| 6 | 19 | I/O | GPIO19, USB_D-, CLK_OUT2, ADC2_CH8, U1RTS |
| 7 | 20 | I | GPIO20, USB_D+, CLK_OUT1, ADC2_CH9, U1CTS |
| 8 | 21 | I/O | GPIO21, TFT_LED_K |
| 9 | 26 | I/O | GPIO26, SPICS1 |
| 10 | 48 | I/O | GPIO48, D_SEL |
| 11 | 47 | I/O | GPIO47, Boot_Mode |
| 12 | 33 | I/O | GPIO33, SPIIO4, FSPIHD, SUBSPIHD, GNSS_TX |
| 13 | 34 | I/O | GPIO34, SPI05, FSPICS0, SUBSPICS0, GNSS_RX |
| 14 | 35 | I/O | GPIO35, SPI06, FSPID, SUBSPID, GNSS_RST |
| 15 | 36 | I/O | GPIO36, SPI07, FSPICLK, SUBSPICLK, GNSS_PPS |
| 16 | 37 | I/O | GPIO37, SPIDQS, FSPIQ, SUBSPIQ |
² VBAT=Vbat_Read*4.9
### Header J3
Table 2-2-2: Pin description
| No. | Name | Type | Function |
|-----|------|------|----------|
| 1 | 18 | I/O | GPIO18, U1RXD, ADC2_CH7, CLK_OUT3, LED Write Ctrl |
| 2 | 17 | I/O | GPIO17, U1TXD, ADC2_CH6 |
| 3 | 16 | I/O | GPIO16, U0CTS, ADC2_CH5, XTAL_32K_N |
| 4 | 15 | I/O | GPIO15, U0RTS, ADC2_CH4, XTAL_32K_P |
| 5 | 7 | I/O | GPIO7, ADC1_CH6, TOUCH7 |
| 6 | 6 | I/O | GPIO6, ADC1_CH5, TOUCH6 |
| 7 | 5 | I/O | GPIO5, ADC1_CH4, TOUCH5 |
| 8 | 4 | I/O | GPIO4, ADC1_CH3, TOUCH4 |
| 1 | 46 | I/O | GPIO46 |
| 2 | 45 | I/O | GPIO45 |
| 4 | 44 | I/O | GPIO44, U0RXD |
| 5 | 43 | I/O | GPIO43, U0TXD |
| 6 | 14 | I/O | GPIO14, ADC2_CH3, TOUCH14, FSPIDQS, SUBSPIWP, FSPIWP, LoRa_DIO1 |
| 7 | 13 | I/O | GPIO13, ADC2_CH2, TOUCH13, FSPIIO7, SUBSPIQ, FSPIQ, LoRa_Busy |
| 8 | 12 | I/O | GPIO12, ADC2_CH1, TOUCH12, FSPIIO6, SUBSPICLK, FSPICLK, LoRa_RST |
| 9 | 11 | I/O | GPIO11, ADC2_CH0, TOUCH11, FSPIIO5, SUBSPID, FSPID, LoRa_MISO |
| 10 | 10 | I/O | GPIO10, ADC1_CH9, TOUCH10, FSPIIO4, SUBSPICS0, FSPICS0, LoRa_MOSI |
| 11 | 9 | I/O | GPIO9, ADC1_CH8, TOUCH9, SUBSPIHD, FSPIHD, LoRa_SCK |
| 12 | 8 | I/O | GPIO8, ADC1_CH7, TOUCH8, SUBSPICS1, LoRa_NSS |
| 13 | 42 | I/O | GPIO42, MTMS, TFT_SDIN |
| 14 | 41 | I/O | GPIO41, MTDI, TFT_SCLK |
| 15 | 40 | I/O | GPIO40, MTMS, TFT_RS |
| 16 | 39 | I/O | GPIO39, MTMS, TFT_RES |
| 18 | 38 | I/O | GPIO38, FSPIWP, SUBSPIWP, TFT_CS |
## Page 10
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# 3. Specifications
## 3.1 General specifications
### Table 3-1: General specifications
| Parameters | Description |
|------------|-------------|
| Master Chip | ESP32-S3FN8 (Xtensa®32-bit lx7 dual core processor) |
| LoRa Chipset | SX1262 |
| GNSS Chipset | UC6580 |
| Frequency | 470~510MHz, 863~928MHz |
| Max TX Power | 21 ± 1dBm |
| Receiving sensitivity | -135dBm |
| Wi-Fi | 802.11 b/g/n |
| Bluetooth | Bluetooth LE: Bluetooth 5, Bluetooth mesh |
| Interface | Type-C USB; 2*1.25 lithium battery interface; LoRa ANT(IPEX); GNSS ANT(IPEX) |
| Battery | 3.7V lithium battery power supply and charging |
| Operating temperature | -20 ~ 70℃ |
| Dimensions | 65.48mm* 28.06mm* 13.52mm |
## Page 11
## 3.2 Power supply
Except when USB or 5V Pin is connected separately, lithium battery can be connected to charge it.
In other cases, only a single power supply can be connected.
### Table 3-2: Power supply
| Power supply mode | Minimum | Typical | Maximum | Unit |
|-------------------|---------|---------|---------|------|
| Type-C USB(≥500mA) | 4.7 | 5 | 6 | V |
| Lithium battery(≥250mA) | 3.3 | 3.7 | 4.2 | V |
| 5V pin(≥500mA) | 4.7 | 5 | 6 | V |
| 3V3 pin(≥150mA) | 2.7 | 3.3 | 3.5 | V |
## 3.3 Power output
### Table 3-3: Power output
| Output Pin | electric current | Unit |
|------------|------------------|------|
| 3.3V Pin | 500 | mA |
| 5V Pin (USB Powered only) | 500 | mA |
| Vext Pin | 350 | mA |
## Page 12
## 3.4 Power characteristics
### Table 3-4: Power characteristics
| Mode | USB power | VBAT/battery powered | Unit |
|------|-----------|---------------------|------|
| Wi-Fi Scan | 100 | 74 | mA |
| Wi-Fi AP | 150 | 111 | mA |
| BT | 102 | 75 | mA |
| GNSS | 120 | 89 | mA |
| TX 14dbm | 200 | 148 | mA |
| TX 17dbm | 220 | 163 | mA |
| TX 22dbm | 240 | 178 | mA |
| RX (TX disabled; RX enabled) | 80 | 59 | mA |
| sleep | 2mA | 15μA | |
## 3.5 LoRa RF characteristics
### 3.5.1 Transmit power
Table3-5-1: Transmit power
| Operating frequency band | Maximum power value/[dBm] |
|--------------------------|---------------------------|
| 470~510 | 21 ± 1 |
| 867~870 | 21 ± 1 |
| 902~928 | 21 ± 1 |
### 3.5.2 Receiving sensitivity
The following table gives typically sensitivity level of the Wireless Tracker-(L/H).
Table3-5-2: Receiving sensitivity
| Signal Bandwidth/[KHz] | Spreading Factor | Sensitivity/[dBm] |
|------------------------|------------------|-------------------|
| 125 | SF12 | -135 |
| 125 | SF10 | -130 |
| 125 | SF7 | -124 |
### 3.5.3 Operation Frequencies
Wireless Tracker supports LoRaWAN frequency channels and models corresponding table.
Table3-5-3: Operation Frequencies
| Region | Frequency (MHz) | Model |
|--------|-----------------|-------|
| EU433 | 433.175~434.665 | Wireless Tracker-LF |
| CN470 | 470~510 | Wireless Tracker-LF |
| IN868 | 865~867 | Wireless Tracker-HF |
| EU868 | 863~870 | Wireless Tracker-HF |
| US915 | 902~928 | Wireless Tracker-HF |
| AU915 | 915~928 | Wireless Tracker-HF |
| KR920 | 920~923 | Wireless Tracker-HF |
| AS923 | 920~925 | Wireless Tracker-HF |
## Page 14
## 3.6 GNSS Characteristics
### 3.6.1 Basic information
Table3-6-1: Basic information
| Parameter | Value |
|-----------|-------|
| Channel | 96 |
| Update frequency | Max 10 Hz |
| Data format | NMEA-0183, Unicore, RTCM 3.x |
| Frequency point | BDS: B2a, GPS: L1+L5, GLONASS: G1, Galileo: E1+E5a, QZSS: L1+L5, SBAS: L1, NAVIC: L5*(Specific firmware) |
### 3.6.2 Accuracy and TTFF
Table3-6-2: Accuracy and TTFF
| Parameter | Value |
|-----------|-------|
| Horizontal position accuracy(RMS) | 1.5m |
| Vertical position accuracy(RMS) | 2.5m |
| Time accuracy(RMS) | 5ns |
| Speed accuracy | 0.02m/s³ |
| Cold boot | ＜26s |
| Warm boot | ＜2s |
| Recapture | 1s |
³ -33 mps linear uniform motion scene under the simulator
### 3.6.3 Sensitivity (Unit: dBm)
Table3-6-3: Sensitivity
| Sensitivity | GNSS | BDS | GPS | GAL | GLONASS |
|-------------|------|-----|-----|-----|---------|
| Cold boot | -148 | -146 | -148 | -144 | -144 |
| Warm boot | -156 | -155 | -155 | -154 | -148 |
| Trace | -165 | -163 | -165 | -163 | -158 |
| Recapture | -156 | -154 | -156 | -154 | -152 |
## Page 16
# 4. Physical dimensions
![Physical Dimensions](../images/wireless-tracker-datasheet_page_16_img_1.png)
# 5. Resource
## 5.1 Relevant Resource
- Heltec ESP (ESP32 & ESP8266) framework (Already included Heltec ESP32 LoRaWAN library)
- Heltec LoRaWAN test server based on SnapEmu
- User Manual Document
## 5.2 Contact Information
Heltec Automation Technology Co., Ltd
Chengdu, Sichuan, China
Email: support@heltec.cn
Phone: +86-028-62374838
https://heltec.org
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