{"id":6258,"date":"2026-06-12T10:18:26","date_gmt":"2026-06-12T10:18:26","guid":{"rendered":"https:\/\/materialparts.com\/esp32-wroom-32d-2\/"},"modified":"2026-06-12T10:18:26","modified_gmt":"2026-06-12T10:18:26","slug":"esp32-wroom-32d-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/esp32-wroom-32d-2\/","title":{"rendered":"ESP32-WROOM-32D"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The ESP32-WROOM-32D from Espressif Systems is a Wi-Fi + Bluetooth + BLE module based on the ESP32-D0WD dual-core processor running at up to 240 MHz. It features 4MB SPI flash, integrated PCB antenna, and comprehensive peripheral set in a compact 18×25.5×3.1mm module.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Processor<\/td>\nXtensa dual-core 32-bit LX6 @ 240 MHz<\/td>\n<\/tr>\n
Flash Memory<\/td>\n4 MB SPI (on module)<\/td>\n<\/tr>\n
SRAM<\/td>\n520 KB (on chip)<\/td>\n<\/tr>\n
ROM<\/td>\n448 KB<\/td>\n<\/tr>\n
Wi-Fi<\/td>\n802.11 b\/g\/n, up to 150 Mbps<\/td>\n<\/tr>\n
Bluetooth<\/td>\nBT v4.2 BR\/EDR + BLE<\/td>\n<\/tr>\n
GPIO<\/td>\nUp to 32<\/td>\n<\/tr>\n
ADC<\/td>\n2x 12-bit, 18 channels<\/td>\n<\/tr>\n
Interfaces<\/td>\nSPI, I2C, I2S, UART, CAN, SDIO<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n3.0V to 3.6V<\/td>\n<\/tr>\n
Deep Sleep Current<\/td>\n<5 uA<\/td>\n<\/tr>\n
TX Power<\/td>\nUp to 20 dBm<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to 85 C<\/td>\n<\/tr>\n
Module Dimensions<\/td>\n18 x 25.5 x 3.1mm<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Dual-core 240 MHz processor with FreeRTOS and LWIP stack<\/li>\n
  • Integrated PCB antenna with FCC\/CE\/IC\/TELEC certification<\/li>\n
  • Hardware accelerated TLS 1.2 and secure OTA updates<\/li>\n
  • Capacitive touch sensors, Hall effect sensor, temperature sensor<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • IoT gateways and smart home devices<\/li>\n
    • Wearable electronics and fitness trackers<\/li>\n
    • Industrial wireless sensor networks<\/li>\n
    • Audio streaming and voice encoding<\/li>\n
    • Smart meters and energy monitoring<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ESP32-WROOM-32D from Espressif Systems is a Wi-Fi + Bluetooth + BLE module based on the ESP32-D0WD dual-core processor running at up to 240 MHz. It features 4MB SPI flash, integrated PCB antenna, and comprehensive peripheral set in a compact 18×25.5×3.1mm module. Key Specifications Processor Xtensa dual-core 32-bit LX6 @ 240 MHz Flash […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[233],"class_list":["post-6258","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-espressif"],"acf":{"brief_explanation":"Dual-core 240MHz WiFi+BT+BLE module, 4MB Flash, PCB antenna, 18x25.5mm","date_code":"","package_case":"Module (18 x 25.5 x 3.1mm, 38 pins)","in_stock":7518,"datasheet":"https:\/\/www.espressif.com\/sites\/default\/files\/documentation\/esp32-wroom-32d_esp32-wroom-32u_datasheet_en.pdf","price":"$3.50 @ 1ku","product_introduction":"The ESP32-WROOM-32D from Espressif Systems is a versatile Wi-Fi and Bluetooth combination module built around the ESP32-D0WD chip. With a dual-core Xtensa LX6 processor running at up to 240 MHz, 520 KB SRAM, and 4 MB SPI flash, it provides ample resources for complex IoT applications. The module integrates a PCB antenna certified under FCC, CE, IC, and TELEC regulations, simplifying RF design. It supports 802.11 b\/g\/n Wi-Fi up to 150 Mbps, Bluetooth v4.2 BR\/EDR, and BLE simultaneously. Rich peripherals include capacitive touch, Hall effect sensor, SD card, Ethernet MAC, and multiple communication interfaces.","working_principle":"The ESP32-WROOM-32D integrates a complete wireless SoC with dual-core processor and RF subsystem. **Processing Subsystem**: Two Xtensa LX6 cores run independently at up to 240 MHz with FreeRTOS. Core 0 typically handles Wi-Fi\/BT protocol stack while Core 1 runs user application code. 520 KB SRAM is shared between cores, and 448 KB ROM stores boot code and basic functions. **Wireless Subsystem**: The 2.4 GHz radio supports Wi-Fi 802.11 b\/g\/n with OFDM modulation up to MCS7 (150 Mbps). Bluetooth v4.2 supports both Classic (BR\/EDR with A2DP, AVRCP) and Low Energy (BLE with GATT profiles). Wi-Fi and BLE can operate concurrently using time-division multiplexing. **Power Management**: Multiple sleep modes optimize power consumption. Deep sleep mode draws less than 5 uA while retaining RTC memory. Light sleep at 0.8 mA maintains Wi-Fi connection state. **Peripheral Subsystem**: A flexible GPIO matrix allows most peripherals to be mapped to any GPIO pin. 12-bit ADC, DAC, capacitive touch, PWM, I2C, SPI, I2S, and UART interfaces support diverse sensor and actuator connections.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>GND<\/td>Ground<\/td><\/tr>
      2<\/td>3V3<\/td>3.3V power supply<\/td><\/tr>
      3<\/td>EN<\/td>Chip enable \/ reset (active high)<\/td><\/tr>
      4-31<\/td>GPIO0-GPIO39<\/td>General-purpose I\/O (32 usable GPIOs)<\/td><\/tr>
      32<\/td>GND<\/td>Ground<\/td><\/tr>
      33-38<\/td>GPIO\/ADC<\/td>ADC input and general-purpose I\/O<\/td><\/tr><\/table>","application_scenarios":"
      • Smart Home: Wi-Fi connected lighting, thermostats, and security cameras with BLE provisioning<\/li>
      • Industrial IoT: Wireless sensor gateways aggregating BLE sensor data to cloud via Wi-Fi<\/li>
      • Wearable Devices: Battery-powered health monitors using deep sleep for extended runtime<\/li>
      • Audio Applications: Voice assistants and streaming devices leveraging dual-core I2S processing<\/li>
      • Smart Metering: Wi-Fi connected energy and water meters with secure TLS 1.2 communication<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        ESP32-WROOM-32U<\/td>Espressif<\/td>External antenna connector (u.FL)<\/td><\/tr>
        ESP32-S3-WROOM-1<\/td>Espressif<\/td>ESP32-S3, 240MHz, WiFi+BLE5, AI acceleration<\/td><\/tr>
        ESP32-C3-WROOM-02<\/td>Espressif<\/td>RISC-V, 160MHz, WiFi+BLE5, lower power<\/td><\/tr>
        BL602-WRAN-01<\/td>Bouffalo Lab<\/td>RISC-V, WiFi+BLE5.0, 4MB Flash<\/td><\/tr>
        RTL8720DN-WiFi<\/td>Realtek<\/td>Dual-band WiFi (2.4+5GHz) + BLE<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6258","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=6258"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6258\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=6258"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=6258"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=6258"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=6258"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}