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Espressif ESP32-WROOM-32D Module ( Wifi + Bluetooth)
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Espressif ESP32-WROOM-32U Module ( Wifi + Bluetooth) Previous 
Espressif ESP32-WROOM-32D 16Mbit Flash WiFi Bluetooth Module
ESP32-WROOM-32D and ESP32-WROOM-32U are powerful, generic Wi-Fi+BT+BLE 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 U.FL connector. For detailed information on the U.FL connector please see Chapter 10 in the datasheet attached. 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 the document in the attachment.
Features of ESP32-WROOM-32D:
- ESP32-WROOM-32 contains two low-power Xtensa 32-bit LX6
- Flash Memory: 4Mbit, 8Mbit, 16Mbit (Optional)
- microprocessors
- 8 KBytes SRAM in RTC SLOW
- 8 KBytes SRAM in RTC FAST
- 1 Kbit of EFUSE, 256 bits MAC
- IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT
- Interfaces: SD-card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S, IR, GPIO, capacitive touch sensor, ADC, DAC, Hall sensor, temperature sensor
Specifications of ESP32-WROOM-32D:
- Operating Voltage (VDC) : 2.2 ~ 3.6
- ROM : 448 KB
- SRAM : 520
- WIFI : 802.11 b/g/n/d/e/i/k/r
- Bluetooth Version : BLE v4.2 BR/EDR
- Wi-Fi Mode : Station/softAP/SoftAP+station/P2P
- Security : WPA/WPA2/WPA2-Enterprise/WPS
- Encryption : AES/RSA/ECC/SHA
- Current Consumption (mA) : 80
- Size : 20x18x3mm
| MCU/SoC | ESP32-WROOM-32D |
|---|---|
| Product Family | ESP32 |
| Architecture | Tensilica Xtensa LX6 |
| CPU Cores | Dual-core |
| Clock Speed (MHz) | 240 MHz |
| Flash | 4Mbit or 16Mbit |
| SRAM | 520 KB |
| SPI interface Pins | 3 |
| I2C interface Pins | 2 |
| UART interface Pins | 3 |
| CAN Bus Support | 1 (TWAI) |
| Ethernet Support | No |
| ADC Channels | 18 |
| DAC Channels | 2 |
| PWM Channels | 16 channels (LED), 6 channels (Motor) |
| Timers Count | 4 x 64-bit |
| Operating Voltage (V) | 2.2V to 3.6V |
| GPIO Voltage (V) | 3.3V |
| GPIO Current (mA) | 12 mA |
| Active Current (mA) | 80 mA |
| Sleep Current (µA) | 10 uA |
| Wireless | Bluetooth, Wi-Fi, BLE |
| Form Factor | 20x18x3 mm |
| IDE Support | MicroPython, Arduino, Espressif IDF |
| Input Voltage (V) | 2.2V to 3.6V |
| Antenna Type | Internal Antenna |
| Bluetooth Ver. | 4.2 |
| Encryption | WPA/WPA2/WPA2-Enterprise/WPS |
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