Overview
The ESP32-WROOM-32D-N16 is a powerful and versatile Wi-Fi, Bluetooth, and Bluetooth Low Energy (BLE) module developed by Espressif Systems. This module is based on the ESP32-D0WD chip, which features a dual-core Xtensa 32-bit LX6 microprocessor. It is designed to target a wide range of applications, from low-power sensor networks to demanding tasks such as voice encoding, music streaming, and MP3 decoding. The module integrates advanced power-management technologies, making it suitable for battery-powered and wearable electronics applications.
Key Specifications
| Attribute | Value |
|---|---|
| Frequency Range | 2.4 GHz ~ 2.5 GHz |
| Wi-Fi Protocol | 802.11 b/g/n (up to 150 Mbps) |
| Bluetooth | v4.2 BR/EDR and BLE |
| Radio | NZIF receiver with –97 dBm sensitivity, Class-1, Class-2, and Class-3 transmitter AFH |
| Module Interfaces | SD card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S, IR, pulse counter, GPIO, capacitive touch sensor, ADC, DAC |
| On-chip Sensor | Hall sensor |
| Integrated Crystal | 40 MHz crystal |
| Integrated SPI Flash | 4 MB |
| Operating Voltage/Power Supply | 2.7 V ~ 3.6 V |
| Average Operating Current | 80 mA |
| Minimum Current Delivered by Power Supply | 500 mA |
| Operating Temperature Range | –40 °C ~ +85 °C |
| RF Certification | FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC |
| Wi-Fi Certification | Wi-Fi Alliance |
| Bluetooth Certification | BQB |
| Green Certification | REACH/RoHS |
Key Features
- Dual-core Xtensa 32-bit LX6 microprocessor with adjustable CPU clock frequency from 80 MHz to 240 MHz.
- Integrated Wi-Fi, Bluetooth, and BLE for comprehensive wireless connectivity.
- Support for multiple external QSPI Flash and SRAM chips.
- Rich set of peripherals including capacitive touch sensors, Hall sensors, SD card interface, high-speed SPI, UART, I2S, and I2C.
- Advanced power-management technologies with a sleep current of less than 5 μA.
- Onboard PCB antenna for the ESP32-WROOM-32D module.
- 12-bit SAR ADC up to 18 channels and two 8-bit DACs.
- Support for audio protocols such as CVSD and SBC.
Applications
- Low-power sensor networks.
- Wearable electronics and battery-powered devices.
- Voice encoding and music streaming applications.
- MP3 decoding and other audio processing tasks.
- Internet of Things (IoT) devices requiring Wi-Fi and Bluetooth connectivity.
- Smart home devices and automation systems.
- Industrial automation and control systems.
Q & A
- What is the frequency range of the ESP32-WROOM-32D-N16 module?
The frequency range is 2.4 GHz ~ 2.5 GHz.
- What wireless protocols does the ESP32-WROOM-32D-N16 support?
The module supports Wi-Fi (802.11 b/g/n), Bluetooth v4.2 BR/EDR, and BLE.
- What is the operating voltage range of the ESP32-WROOM-32D-N16?
The operating voltage range is 2.7 V ~ 3.6 V.
- What is the average operating current of the ESP32-WROOM-32D-N16?
The average operating current is 80 mA.
- What certifications does the ESP32-WROOM-32D-N16 hold?
The module holds certifications such as FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC for RF, Wi-Fi Alliance for Wi-Fi, BQB for Bluetooth, and REACH/RoHS for green certification.
- What are the key interfaces supported by the ESP32-WROOM-32D-N16?
The module supports interfaces such as SD card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S, IR, pulse counter, GPIO, capacitive touch sensor, ADC, and DAC.
- What is the operating temperature range of the ESP32-WROOM-32D-N16?
The operating temperature range is –40 °C ~ +85 °C.
- Does the ESP32-WROOM-32D-N16 have any onboard sensors?
Yes, it includes a Hall sensor.
- What is the integrated SPI flash capacity of the ESP32-WROOM-32D-N16?
The integrated SPI flash capacity is 4 MB.
- Can the ESP32-WROOM-32D-N16 be used in battery-powered devices?
Yes, it is suitable for battery-powered devices due to its low sleep current of less than 5 μA.
