ESP32-WROVER-B combines 2.4 GHz Wi-Fi and dual-mode (Classic and Low-Energy) Bluetooth. Such a combination ensures unparalleled connectivity in different application scenarios. Wi-Fi enables internet connectivity over a large area, while Classic Bluetooth allows users to securely connect ESP32-WROVER-B to their mobile phones for exchanging data over short distances by using short-wavelength UHF radio waves. Additionally, ESP32-WROVER-B can function as a beacon, broadcasting its identifier via Bluetooth Low Energy to portable electronic devices within a maximum radius of 50 meters.
Categories | Items | Specifications |
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Certification
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RF Certification | FCC/CE-RED /lC/TELEC/KCC/SRRC/NCC |
Bluetooth certification | BQB | |
Green certification | RoHS, REACH | |
Test | Reliability | 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 |
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Frequency range | 2.4 GHz ~ 2.5 GHz | |
Bluetooth
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Protocols | Bluetooth V4.2 BR/EDR and BLE specification |
Radio
|
NZIF receiver with -97 dBm sensitivity | |
Class-1, class-2 and class-3 transmitter | ||
AFH | ||
Audio | CVSD and SBC | |
Hardware
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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 | |
Operating voltage/Powes supply | 2.7 ~ 3.6 V | |
Minimum current delivered by power supply |
500 mA | |
Recommended operating temperature range |
-40 °C ~ 65 °C |
The new module is built around ESP32-D0WD instead of ESP32-D0WDQ6. ESP32-D0WD has two CPU cores that can be individually controlled, while its CPU clock frequency is adjustable, ranging from 80 MHz to 240 MHz. It integrates a variety of peripherals, including capacitive touch sensors, a Hall sensor, an SD card interface, an Ethernet port, high-speed SPI, UART, I2S and I2C. Users can power off the CPU and make use of the low-power co-processor to constantly monitor the peripherals for any changes or threshold crossings.
The operating system of all chips in the ESP32 series is FreeRTOS with a light-weight Internet Protocol (LwIP). A Transport Layer Security (TLS 1.2) with hardware acceleration is built-in as well. Secure (encrypted) over-the-air (OTA) upgrade is supported, allowing developers to upgrade their products, even after the initial release of the latter, with little effort at minimal cost.
Artikel-Nr. | 18652 |
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Hersteller | Espressif |