.. zephyr:board:: heltec_wireless_stick_lite_v3

Overview

HelTec Wireless Stick Lite (V3) is a development board with Wi-Fi, Bluetooth and LoRa support. It is designed and produced by HelTec Automation(TM). See the Heltec Wireless Stick Lite (v3) pages_ for more details.

Hardware

The main hardware features are:

ESP32-S3FN8 low-power MCU-based SoC (dual-core Xtensa® 32-bit LX7 microprocessor, five stage pipeline rack Structure, main frequency up to 240 MHz).
Semtech SX1262 LoRa node chip
Type-C USB interface with a complete voltage regulator, ESD protection, short circuit protection, RF shielding, and other protection measures (note: you need an USB-A to USB-C cable if you want to power-up the board from USB).
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).
Integrated WiFi and Bluetooth interfaces with 2.4GHz metal spring antenna and reserved IPEX (U.FL) interface for LoRa use.
Integrated CP2102 USB to serial port chip, convenient for program downloading, debugging information printing.
Good RF circuit design and low-power design.

.. include:: ../../../espressif/common/soc-esp32s3-features.rst :start-after: espressif-soc-esp32s3-features

Supported Features

.. zephyr:board-supported-hw::

Connections and IOs

.. figure:: heltec_wireless_stick_lite_v3_pinout.webp :width: 600px :align: center :alt: HelTec Wireless Stick Lite (V3) Pinout

Pinout (Credit: Chengdu HelTec Automation Technology Co., Ltd.)

.. table:: HelTec Wireless Stick Lite (V3) Pinout :widths: auto

+--------+---------+-----------------------------+ | Header | Function| Description | +========+=========+=============================+ | J2.1 | Ve | | +--------+---------+-----------------------------+ | J2.2 | GND | | +--------+---------+-----------------------------+ | J2.3 | | | +--------+---------+-----------------------------+ | J2.4 | U0RXD | Zephyr Console+Shell | +--------+---------+-----------------------------+ | J2.5 | U0TXD | Zephyr Console+Shell | +--------+---------+-----------------------------+ | J2.6 | | | +--------+---------+-----------------------------+ | J2.7 | | | +--------+---------+-----------------------------+ | J2.8 | GPIO35 | PWM LED Control | +--------+---------+-----------------------------+ | J2.9 | GPIO36 | Vext Control | +--------+---------+-----------------------------+ | J2.10 | GPIO37 | ADC Control | +--------+---------+-----------------------------+ | J2.11 | | | +--------+---------+-----------------------------+ | J2.12 | GPIO39 | | +--------+---------+-----------------------------+ | J2.13 | GPIO40 | | +--------+---------+-----------------------------+ | J2.14 | GPIO41 | | +--------+---------+-----------------------------+ | J2.15 | GPIO42 | | +--------+---------+-----------------------------+ | J2.16 | GPIO45 | | +--------+---------+-----------------------------+ | J2.17 | GPIO46 | | +--------+---------+-----------------------------+ | J2.18 | ADC1_CH0| Battery Voltage Measurement | +--------+---------+-----------------------------+ | J2.19 | | | +--------+---------+-----------------------------+ | J2.20 | | | +--------+---------+-----------------------------+ | J3.1 | 5V | | +--------+---------+-----------------------------+ | J3.2 | 3V3 | | +--------+---------+-----------------------------+ | J3.3 | GND | | +--------+---------+-----------------------------+ | J3.4 | GPIO47 | | +--------+---------+-----------------------------+ | J3.5 | GPIO48 | | +--------+---------+-----------------------------+ | J3.6 | GPIO0 | User Switch | +--------+---------+-----------------------------+ | J3.7 | | | +--------+---------+-----------------------------+ | J3.8 | | | +--------+---------+-----------------------------+ | J3.9 | U1RXD | UART 1 | +--------+---------+-----------------------------+ | J3.10 | GPIO21 | | +--------+---------+-----------------------------+ | J3.11 | | | +--------+---------+-----------------------------+ | J3.12 | U1TXD | UART 1 | +--------+---------+-----------------------------+ | J3.13 | | | +--------+---------+-----------------------------+ | J3.14 | NC | Reset Switch | +--------+---------+-----------------------------+ | J3.15 | | | +--------+---------+-----------------------------+ | J3.16 | | | +--------+---------+-----------------------------+ | J3.17 | | | +--------+---------+-----------------------------+ | J3.18 | | | +--------+---------+-----------------------------+ | J3.19 | TWAI_TX | CAN (optional) | +--------+---------+-----------------------------+ | J3.20 | TWAI_RX | CAN (optional) | +--------+---------+-----------------------------+

System Requirements

.. include:: ../../../espressif/common/system-requirements.rst :start-after: espressif-system-requirements

Programming and Debugging

.. zephyr:board-supported-runners::

.. include:: ../../../espressif/common/building-flashing.rst :start-after: espressif-building-flashing

.. include:: ../../../espressif/common/board-variants.rst :start-after: espressif-board-variants

Debugging

.. include:: ../../../espressif/common/openocd-debugging.rst :start-after: espressif-openocd-debugging

References

.. target-notes::

.. _Heltec Wireless Stick Lite (v3) pages: https://heltec.org/project/wireless-stick-lite-v2/ .. _Heltec Wireless Stick Lite (v3) Pinout Diagram: https://resource.heltec.cn/download/Wireless_Stick_Lite_V3/HTIT-WSL_V3.png .. _Heltec Wireless Stick Lite (v3) Schematic Diagrams: https://resource.heltec.cn/download/Wireless_Stick_Lite_V3/HTIT-WSL_V3_Schematic_Diagram.pdf .. _ESP-IDF Programming Guide: https://docs.espressif.com/projects/esp-idf/en/latest/esp32s3/api-reference/index.html