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It summarizes module architecture and capabilities, including dual-core CPU scaling, adjustable clock frequency, low-power operation with a co-processor, and integrated peripherals such as touch sensors, sensors, SD interface, Ethernet, and multiple digital interfaces. The document also covers the operating system stack (freeRTOS, LwIP, TLS 1.2), secure OTA upgrades, certification context, and a structured contents overview spanning pinout, functional description, electrical characteristics, radios, PCB and physical dimensions.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/esp32-wroom-32-datasheet/563020/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/esp32-wroom-32-datasheet/563020.png","ImageObject",300,407,{"name":92,"@type":93},"dabgoudw","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-15","2026-10-12",true,{"@type":102,"interactionType":103,"userInteractionCount":19},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the ESP32-WROOM-32 module designed for?","Question",{"text":112,"@type":113},"It is a generic Wi‑Fi + BT + BLE MCU module targeting applications from low-power sensor networks to demanding tasks such as voice encoding, music streaming, and MP3 decoding.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How does the ESP32 support low-power operation?",{"text":117,"@type":113},"The module allows powering off the CPU and using a low-power co-processor to monitor peripherals for changes or threshold crossings, with sleep current less than 5 μA.",{"name":119,"@type":110,"acceptedAnswer":120},"What connectivity and security features are supported?",{"text":121,"@type":113},"It integrates Wi‑Fi, Bluetooth, and Bluetooth LE, supports freeRTOS with LwIP, includes TLS 1.2 with hardware acceleration, and supports encrypted over-the-air (OTA) upgrades.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},563020,1791858277,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":19,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},3985747860484,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","ESP32-WROOM-32  \nDatasheet  \n[www.espressif.com](www.espressif.com)  \nVersion 2.9 Espressif Systems Copyright © 2019  \nAbout This Document  \nThis document provides the specifications for the ESP32-WROOM-32 module.  \nRevision History  \nFor revision history of this document, please refer to the last page.  \nDocumentation Change Notification  \nEspressif provides email notifications to keep customers updated on changes to technical documentation. Please [subscribe at](subscribe at www.espressif.com/en/subscribe)[ ](subscribe at www.espressif.com/en/subscribe)[www.espressif.com/en/subscribe](subscribe at www.espressif.com/en/subscribe).  \nCertification  \nDownload certificates [for Espressif products from](for Espressif products from www.espressif.com/en/certificates)[ ](for Espressif products from www.espressif.com/en/certificates)[www.espressif.com/en/certificates](for Espressif products from www.espressif.com/en/certificates).  \nDisclaimer and Copyright Notice  \nInformation in this document, including URL references, is subject to change without notice. THIS DOCUMENT IS PROVIDED AS IS WITH NO WARRANTIES WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY, NON-INFRINGEMENT, FITNESS FOR ANY PARTICULAR PURPOSE, OR ANY WARRANTY OTHERWISE ARISING OUT OF ANY PROPOSAL, SPECIFICATION OR SAMPLE.  \nAll liability, including liability for infringement of any proprietary rights, relating to use of information in this document is disclaimed. No licenses express or implied, by estoppel or otherwise, to any intellectual property rights are granted herein. The Wi-Fi Alliance Member logo is a trademark of the Wi-Fi Alliance. The Bluetooth logo is a registered trademark of Bluetooth SIG.  \nAll trade names, trademarks and registered trademarks mentioned in this document are property of their respective owners, and are hereby acknowledged.  \nCopyright © 2019 Espressif Inc. All rights reserved.  \nContents  \n1 Overview 1  \n2 Pin Definitions 3  \n2.1 Pin Layout 3  \n2.2 Pin Description 3  \n2.3 Strapping Pins 4  \n3 Functional Description 6  \n3.1 CPU and Internal Memory 6  \n3.2 External Flash and SRAM 6  \n3.3 Crystal Oscillators 6  \n3.4 RTC and Low-Power Management 7  \n4 Peripherals and Sensors 8  \n5 Electrical Characteristics 9  \n5.1 Absolute Maximum Ratings 9  \n5.2 Recommended Operating Conditions 9  \n5.3 DC Characteristics (3.3 V, 25 °C) 9  \n5.4 Wi-Fi Radio 10  \n5.5 BLE Radio 11  \n5.5.1 Receiver 11  \n5.5.2 Transmitter 11  \n5.6 Reflow Profile 12  \n6 Schematics 13  \n7 Peripheral Schematics 14  \n8 Physical Dimensions 16  \n9 Recommended PCB Land Pattern 17  \n10Learning Resources 18  \n10.1 Must-Read Documents 18  \n10.2 Must-Have Resources 18  \nRevision History 19  \nList of Tables  \n1 ESP32-WROOM-32 Specifications 1  \n2 Pin Definitions 3  \n3 Strapping Pins 5  \n4 Absolute Maximum Ratings 9  \n5 Recommended Operating Conditions 9  \n6 DC Characteristics (3.3 V, 25 °C) 9  \n7 Wi-Fi Radio Characteristics 10  \n8 Receiver Characteristics – BLE 11  \n9 Transmitter Characteristics – BLE 11  \nList of Figures  \n1 ESP32-WROOM-32 Pin Layout (Top View) 3  \n2 Reflow Profile 12  \n3 ESP32-WROOM-32 Schematics 13  \n4 ESP32-WROOM-32 Peripheral Schematics 14  \n5 Discharge Circuit for VDD33 Rail 14  \n6 Reset Circuit 15  \n7 Physical Dimensions of ESP32-WROOM-32 16  \n8 Recommended PCB Land Pattern 17  \n1. Overview  \nESP32-WROOM-32 is a powerful, generic Wi-Fi+BT+BLE MCU module that targets a wide variety of applications, ranging from low-power sensor networks to the most demanding tasks, such as voice encoding, music streaming and MP3 decoding.  \nAt the core of this module is the ESP32-D0WDQ6 chip* . The chip embedded is designed to be scalable and adaptive. There are two CPU cores that can be individually controlled, and the CPU clock frequency is adjustable from 80 MHz to 240 MHz. The user may also power off the CPU and make use of the low-power co-processor to constantly monitor the peripherals for changes or crossing of thresholds. ESP32 integrates a rich set of peripherals, rangi","cbCaintRYWboewhJ","https://ap.wps.com/l/cbCaintRYWboewhJ","pdf",530524,25,"English","# Overview\n## Pin Definitions\n## Functional Description\n## Peripherals and Sensors\n## Electrical Characteristics\n## Schematics\n## Physical Dimensions\n## Recommended PCB Land Pattern\n## Learning Resources","[{\"question\":\"What is the ESP32-WROOM-32 module designed for?\",\"answer\":\"It is a generic Wi‑Fi + BT + BLE MCU module targeting applications from low-power sensor networks to demanding tasks such as voice encoding, music streaming, and MP3 decoding.\"},{\"question\":\"How does the ESP32 support low-power operation?\",\"answer\":\"The module allows powering off the CPU and using a low-power co-processor to monitor peripherals for changes or threshold crossings, with sleep current less than 5 μA.\"},{\"question\":\"What connectivity and security features are supported?\",\"answer\":\"It integrates Wi‑Fi, Bluetooth, and Bluetooth LE, supports freeRTOS with LwIP, includes TLS 1.2 with hardware acceleration, and supports encrypted over-the-air (OTA) upgrades.\"}]","ESP32-WROOM-32 - Datasheet | PDF",1791810351,63]