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ESP-32-Wrover-B (8MB PSRAM)

ESP32-WROVER-B is Espressif Systems’ new and powerful module which comes in two versions, with a PCB antenna and with an IPEX connector. The module has a 4MB external SPI flash and an additional 8MB SPI Pseudo Static RAM (PSRAM). This marks a big improvement over ESP32-WROVER and ESP32-WROVER-I.

Preis 10,00 $

Mitgliederpreis 9,00 $

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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
Certification
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
Frequency range 2.4 GHz ~ 2.5 GHz
Bluetooth
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
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
Hersteller Espressif

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