.. zephyr:board:: heltec_wifi_lora32_v2

Overview

Heltec WiFi LoRa 32 is a classic IoT dev-board designed & produced by Heltec Automation(TM), it's a highly integrated product based on ESP32 + SX127x, it has Wi-Fi, BLE, LoRa functions, also Li-Po battery management system, 0.96" OLED are also included. See the Heltec WiFi LoRa (V2) pages_ for more details.

The features include the following:

Microprocessor: ESP32 (dual-core 32-bit MCU + ULP core)
LoRa node chip SX1276/SX1278
Micro 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
Integrated WiFi, LoRa, Bluetooth three network connections, onboard Wi-Fi, Bluetooth dedicated 2.4GHz metal 3D antenna, reserved IPEX (U.FL) interface for LoRa use
Onboard 0.96-inch 128*64 dot matrix OLED display
Integrated CP2102 USB to serial port chip

Hardware

.. include:: ../../../espressif/common/soc-esp32-features.rst :start-after: espressif-soc-esp32-features

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

Utilizing Hardware Features

Onboard OLED display

The onboard OLED display is of type ssd1306, has 128*64 pixels and is connected via I2C. It can therefore be used by enabling the :ref:ssd1306_128_shield as shown in the following for the :zephyr:code-sample:lvgl sample:

.. zephyr-app-commands:: :zephyr-app: samples/subsys/display/lvgl :board: heltec_wifi_lora32_v2/esp32/procpu :shield: ssd1306_128x64 :goals: flash

References

.. target-notes::

.. _Heltec WiFi LoRa (V2) pages: https://heltec.org/project/wifi-lora-32/ .. _Heltec WiFi LoRa (v2) Pinout Diagram: https://resource.heltec.cn/download/WiFi_LoRa_32/WIFI_LoRa_32_V2.pdf .. _Heltec WiFi LoRa (v2) Schematic Diagrams: https://resource.heltec.cn/download/WiFi_LoRa_32/V2