The ESP32-WROOM-32D is a WiFi and Bluetooth module using the popular ESPRESSIF ESP32 (ESP32-D0WD) chip. The pads on the module have a 1.27mm spacing. This is the original module, manufactured by Espressif.
It is a pin and software compatible, improved version of the original ESP32-WROOM-32(ESP-WROOM-32) module from Espressif. It is recommended by Espressif as an upgrade to the ESP32-WROOM-32.
The ESP32 chip integrates a dual-core processor with 448 KByte ROM, 520 KByte SRAM, 16 KByte SRAM in RTC, 802.11 b/g/n/e/I Wi-Fi, Bluetooth v4.2 BR/EDR & BLE, clocks & Times, abundant peripheral Interfaces and security mechanism.
Software can be developed using many different platforms, including Arduino. It is designed for Generic low power IoT sensor hub, loggers, video steaming for camera, Wi-Fi & Bluetooth enabled devices, Home automation and mesh network applications, aimed at makers, hardware engineers, software engineers and solution provides.
The ESP32 is the most integrated solution for Wi-Fi + Bluetooth applications in the industry with less than 10 external components. ESP32 integrates the antenna switch, RF balun, power amplifier, low noise receive amplifier, filters, and power management modules. As such, the entire solution occupies minimal Printed Circuit Board (PCB) area.
The ESP32-WROOM-32D comes in a 32 and 128MBit(4 and 16 MByte = MB) version. This is the 128MBit version. The 32MBit has a blue dot, and the 128MBit module a green dot on the front of the module.
Features
- CPU and Memory: Xtensa® 32-bit LX6 Dua-core processor, up to 600 DMIPS
- Chip ESP32-D0WD
- 4 MByte(32Mbit) SPI Flash
- 448 KByte ROM
- 520 KByte SRAM
- 16 KByte SRAM in RTC
- PCB Antenna Connector
- Supply Voltage: 2.2V~3.6V
WiFi
- 802.11 b/g/n/e/i
- 802.11 n (2.4 GHz), up to 150 Mbps
- 802.11 e: QoS for wireless multimedia technology.
- WMM-PS, UAPSD
- MPDU and A-MSDU aggregation
- Block ACK
- Fragmentation and Defragmentation
- Automatic Beacon monitoring/scanning
- 802.11 i security features: pre-authentication and TSN
- Wi-Fi Protected Access (WPA)/WPA2/WPA2-Enterprise/Wi-Fi Protected Setup (WPS)
- Infrastructure BSS Station mode/SoftAP mode
- Wi-Fi Direct (P2P), P2P Discovery, P2P Group Owner mode and P2P Power Management
- UMA compliant and certified
- Antenna diversity and selection
Bluetooth
- Compliant with Bluetooth v4.2 BR/EDR and BLE specification
- Class-1, class-2 and class-3 transmitter without external power amplifier
- Enhanced power control
- +10 dBm transmitting power
- NZIF receiver with -98 dBm sensitivity
- Adaptive Frequency Hopping (AFH)
- Standard HCI based on SDIO/SPI/UART High speed UART HCI, up to 4 Mbps
- BT 4.2 controller and host stack
- Service Discover Protocol (SDP)
- General Access Profile (GAP)
- Security Manage Protocol (SMP)
- Bluetooth Low Energy (BLE)
- ATT/GATT
- HID
- All GATT-based profile supported
- SPP-Like GATT-based profile
- BLE Beacon
- A2DP/AVRCP/SPP, HSP/HFP, RFCOMM
- CVSD and SBC for audio codec
- Bluetooth Piconet and Scatternet
Dimensions: 48mm x 27.8mm
