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<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Heltec WiFi LoRa 32 V4</span></h1>

</div>

<div id="mw-content-text" class="mw-body-content mw-content-ltr" lang="en" dir="ltr"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><p class="mw-empty-elt"></p><aside class="portable-infobox noexcerpt searchaux pi-background pi-theme-default pi-layout-default pi-type-hardware"><h2 class="pi-item pi-item-spacing pi-title" data-source="title">Heltec WiFi LoRa 32 V4</h2><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="aka">

<h3 class="pi-data-label pi-secondary-font">Also known as</h3>

<div class="pi-data-value pi-font">Heltec V4</div>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="manufacturer">

<h3 class="pi-data-label pi-secondary-font">Manufacturer</h3>

<div class="pi-data-value pi-font">Heltec Automation</div>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="type">

<div class="pi-data-value pi-font"><a href="https://en.wikipedia.org/wiki/Development_board" class="extiw external" title="wikipedia:Development board">Development board</a></div>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="price">

<h3 class="pi-data-label pi-secondary-font">Price</h3>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="mcu">

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="cpu">

<div class="pi-data-value pi-font"><a href="https://en.wikipedia.org/wiki/Xtensa" class="extiw external" title="wikipedia:Xtensa">Xtensa</a> LX7 @ 240 MHz</div>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="memory">

<h3 class="pi-data-label pi-secondary-font">Memory</h3>

<div class="pi-data-value pi-font">512 kB <a href="https://en.wikipedia.org/wiki/Static_random-access_memory" class="extiw external" title="wikipedia:Static random-access memory">SRAM</a><br>2 or 8 MB <a href="https://en.wikipedia.org/wiki/PSRAM" class="extiw external" title="wikipedia:PSRAM">PSRAM</a><br>16 MB <a href="https://en.wikipedia.org/wiki/Flash_memory" class="extiw external" title="wikipedia:Flash memory">Flash</a></div>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="display">

<h3 class="pi-data-label pi-secondary-font">Display</h3>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="gnss">

<div class="pi-data-value pi-font">External <a rel="nofollow" class="external text" href="https://resource.heltec.cn/download/Mesh_Node_T114/Quectel_L76_GNSS_Presentation_V1.4.pdf">L76K</a></div>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="power_source">

<h3 class="pi-data-label pi-secondary-font">Power source</h3>

<div class="pi-data-value pi-font">5 V USB Type-C<br>3.7 V Li-ion Battery<br>6 V Solar Panel</div>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="dimensions">

<h3 class="pi-data-label pi-secondary-font">Dimensions</h3>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="predecessor">

<h3 class="pi-data-label pi-secondary-font">Predecessor</h3>

<div class="pi-data-value pi-font"><a href="Heltec_WiFi_LoRa_32_V3" title="Heltec WiFi LoRa 32 V3">Heltec WiFi LoRa 32 V3</a></div>

</div><section class="pi-item pi-group pi-border-color pi-collapse pi-collapse-open"><h2 class="pi-item pi-header pi-secondary-font pi-item-spacing pi-secondary-background">Bluetooth LE</h2><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="chip1">

<h3 class="pi-data-label pi-secondary-font"><a href="https://en.wikipedia.org/wiki/Transceiver" class="extiw external" title="wikipedia:Transceiver">Transceiver</a> IC</h3>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="phy1">

<h3 class="pi-data-label pi-secondary-font"><a href="https://en.wikipedia.org/wiki/PHY" class="extiw external" title="wikipedia:PHY">PHY</a> modes</h3>

<div class="pi-data-value pi-font"><a href="https://en.wikipedia.org/wiki/Bluetooth_Low_Energy#2M_PHY" class="extiw external" title="wikipedia:Bluetooth Low Energy">2M</a>, <a href="https://en.wikipedia.org/wiki/Bluetooth_Low_Energy#LE_Coded" class="extiw external" title="wikipedia:Bluetooth Low Energy">Coded</a></div>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="power1">

<h3 class="pi-data-label pi-secondary-font"><a href="https://en.wikipedia.org/wiki/Transmitter_power_output" class="extiw external" title="wikipedia:Transmitter power output">Output power</a></h3>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="sensitivity1">

<h3 class="pi-data-label pi-secondary-font"><a href="https://en.wikipedia.org/wiki/Sensitivity_(electronics)#Receivers" class="extiw external" title="wikipedia:Sensitivity (electronics)">Sensitivity</a></h3>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="antenna1">

<h3 class="pi-data-label pi-secondary-font">Antenna type</h3>

<div class="pi-data-value pi-font">Shared <a href="https://en.wikipedia.org/wiki/Flexible_electronics" class="extiw external" title="wikipedia:Flexible electronics">FPC</a><br>Shared External <a href="https://en.wikipedia.org/wiki/u.FL" class="extiw external" title="wikipedia:u.FL">u.FL</a></div>

</div></section><section class="pi-item pi-group pi-border-color pi-collapse pi-collapse-open"><h2 class="pi-item pi-header pi-secondary-font pi-item-spacing pi-secondary-background">2.4 GHz Wi-Fi</h2><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="chip2">

<h3 class="pi-data-label pi-secondary-font">Transceiver IC</h3>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="phy2">

<h3 class="pi-data-label pi-secondary-font">PHY modes</h3>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="power2">

<h3 class="pi-data-label pi-secondary-font">Output power</h3>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="sensitivity2">

<h3 class="pi-data-label pi-secondary-font">Sensitivity</h3>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="antenna2">

<h3 class="pi-data-label pi-secondary-font">Antenna type</h3>

<div class="pi-data-value pi-font">Shared FPC<br>Shared External u.FL</div>

</div></section><section class="pi-item pi-group pi-border-color pi-collapse pi-collapse-open"><h2 class="pi-item pi-header pi-secondary-font pi-item-spacing pi-secondary-background">Sub-GHz LoRa</h2><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="chip3">

<h3 class="pi-data-label pi-secondary-font">Transceiver IC</h3>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="phy3">

<h3 class="pi-data-label pi-secondary-font">PHY modes</h3>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="freq3">

<h3 class="pi-data-label pi-secondary-font">Frequency range</h3>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="power3">

<h3 class="pi-data-label pi-secondary-font">Output power</h3>

</div><div class="pi-item pi-data pi-item-spacing pi-border-color" data-source="antenna3">

<h3 class="pi-data-label pi-secondary-font">Antenna type</h3>

<div class="pi-data-value pi-font">External u.FL</div>

</div></section></aside>

<p class="mw-empty-elt"></p><p>The <b>Heltec WiFi LoRa 32 V4</b>, more commonly known as the <b>Heltec V4</b>, is a development board based around the <a href="https://en.wikipedia.org/wiki/ESP32" class="extiw external" title="wikipedia:ESP32">ESP32</a>-S3 microcontroller and the SX1262 LoRa transceiver. It features a 505 mW increase in output power over its predecessor, the <a href="Heltec_V3" class="mw-redirect" title="Heltec V3">Heltec V3</a>, along with additional memory and a solar panel connector.

</p>

<div class="mw-heading mw-heading2"><h2 id="Models">Models</h2></div>

<p>There are two models of the Heltec V4. The <em>HTIT-WB32LAF</em> is the original model and features the ESP32-S3R2 microcontroller with 2 MB of <a href="https://en.wikipedia.org/wiki/PSRAM" class="extiw external" title="wikipedia:PSRAM">PSRAM</a>. The newer <em>HTIT-WBR8H</em> features the ESP32-S3R8 microcontroller with 8 MB of PSRAM. This newer model is also known as the Heltec V4-R8, and was likely introduced due to the ESP32-S3R2 becoming end-of-life.

</p>

<div class="mw-heading mw-heading2"><h2 id="Firmware">Firmware</h2></div>

<p>The Heltec V4 is supported by the official <a href="RNode" title="RNode">RNode</a> firmware as of version 1.84.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> It is also supported by the <a href="MicroReticulum" title="MicroReticulum">microReticulum</a> firmware as of version 1.85.10.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>

</p>

<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>

<li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text">"<a rel="nofollow" class="external text" href="https://github.com/markqvist/RNode_Firmware/releases/tag/1.84">Release 1.84</a>".</span>

</li>

<li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text">"<a rel="nofollow" class="external text" href="https://github.com/attermann/microReticulum_Firmware/releases/tag/1.85">Release 1.85.10</a>".</span>

</li>

</ol></div>

<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>

<ul><li><a rel="nofollow" class="external text" href="https://heltec.org/project/wifi-lora-32-v4/">Official website</a></li>

<li><a rel="nofollow" class="external text" href="https://resource.heltec.cn/download/WiFi_LoRa_32_V4/datasheet/WiFi_LoRa_32_V4.3.1_Datasheet.pdf">WiFi LoRa 32 V4 datasheet</a></li>

<li><a rel="nofollow" class="external text" href="https://resource.heltec.cn/download/WiFi_LoRa_32_V4-R8/datasheet/WiFi_LoRa_32_V4R8.pdf">WiFi LoRa 32 V4-R8 datasheet</a></li></ul></div><div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks">Categories: <ul><li><a href="Category%3AESP32" title="Category:ESP32">ESP32</a></li><li><a href="Category%3ASX1262" title="Category:SX1262">SX1262</a></li></ul></div></div><div><div class="zim-footer">

This page is issued from <a class="external text" title="Last edited on 2026-07-29" href="https://reticulum.miraheze.org/wiki/?title=Heltec_WiFi_LoRa_32_V4&oldid=2760">Reticulum Community Wiki</a>. The text is available under Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) unless otherwise noted. Additional terms may apply for the media files.

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