Product Descriptions
ESP32-WROOM-32D and ESP32-WROOM-32U are powerful, generic Wi-Fi + Bluetooth® + Bluetooth LE MCU modules that target 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.
ESP32-WROOM-32U is different from ESP32-WROOM-32D in that ESP32-WROOM-32U integrates a connector to connect an external antenna. For detailed information of the connector please see Chapter 10. Note that the information in this data sheet is applicable to both modules. Any differences between them will be clearly specified in the course of this document. Table 1 lists the difference between ESP32-WROOM-32D and ESP32-WROOM-32U.
Product Specifications
| Categories | Items | Specifications |
| Certification | RF Certification | See certificates for ESP32-WROOM-32D and ESP32-WROOM-32U |
| Wi-Fi Certification | Wi-Fi Alliance | |
| Bluetooth certification | BQB | |
| Green Certification | REACH/RoHS | |
| Test | Reliablity | HTOL/HTSL/uHAST/TCT/ESD |
| Wi-Fi | Protocols | 802.11 b/g/n (802.11n up to 150 Mbps) |
| A-MPDU and A-MSDU aggregation and 0.4 µs guard interval support | ||
| Center frequency range of operating channel | 2412 ~ 2484 MHz | |
| Bluetooth | Protocols | Bluetooth v4.2 BR/EDR and Bluetooth LE specification |
| Radio | NZIF receiver with –97 dBm sensitivity | |
| Class-1, class-2 and class-3 transmitter | ||
| AFH | ||
| Audio | CVSD and SBC | |
| Hardware | Module interfaces | SD card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S, IR, pulse counter, GPIO, capacitive touch sensor, ADC, DAC, Two-Wire Automotive Interface (TWAI®), compatible with ISO11898-1 (CAN Specification 2.0) |
| Integrated crystal | 40 MHz crystal | |
| Integrated SPI flash 1 | 4 MB | |
| Operating voltage/Power supply | 3.0 V ~ 3.6 V | |
| Operating current | Average: 80 mA | |
| Minimum current delivered by power supply | 500 mA | |
| Recommended operating ambient temperature range 2 | –40 °C ~ +85 °C | |
| Moisture sensitivity level (MSL) | Level 3 |
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