SKU: IOWC-1860
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ESP32-WROVER Module 4MB Flash 32MB PSRAM Wi-Fi Bluetooth

₹296.00 (Inclusive of all taxes)
Out of Stock

The ESP32-WROVER module is a feature-rich Wi-Fi and Bluetooth MCU module with 4MB SPI flash and 32MB PSRAM, designed for demanding IoT applications like audio streaming and sensor networks. It operates on 3.3V and is programmable via ESP-IDF, Arduino IDE, or MicroPython.

Features

  • Dual-core Xtensa LX6 processor clockable from 80 MHz to 240 MHz for high-performance computing tasks.
  • Integrated 802.11 b/g/n Wi-Fi and Bluetooth 4.2 (Classic & BLE) with +19.5 dBm output power for robust wireless connectivity.
  • Includes 4MB SPI flash and 32MB PSRAM for handling large data buffers, audio streams, and complex application code.
  • Ultra-low power design with sleep currents under 5 µA, ideal for battery-powered and wearable IoT devices.
  • Rich peripheral set includes capacitive touch, Hall sensor, SD card, Ethernet, SPI, UART, I2S, and I2C interfaces.

Out of stock

Description

The ESP32-WROVER module integrates Espressif’s ESP32 dual-core SoC with expanded memory, making it a versatile solution for advanced IoT projects. It combines a high-performance 32-bit LX6 microprocessor, capable of dynamic frequency scaling, with a certified RF subsystem that includes an antenna switch, balun, power amplifier, and low-noise amplifier. This integration minimizes external component count while delivering reliable Wi-Fi and Bluetooth connectivity.

Engineered for optimal power and RF performance, the module supports fine-resolution clock gating and multiple power modes, enabling efficient operation in battery-sensitive applications. Its 32MB PSRAM is particularly beneficial for memory-intensive tasks such as voice encoding, MP3 decoding, and buffering high-resolution sensor data. The module’s robust peripheral suite and industry-standard security protocols (WPA2, AES) ensure it meets the requirements of both consumer and industrial IoT deployments.

Key Features

  • Dual-core Xtensa LX6 CPU with adjustable clock speed (80-240 MHz) for flexible performance and power management.
  • Integrated 802.11b/g/n Wi-Fi supporting Station, SoftAP, and combined modes with WPA/WPA2 security.
  • Bluetooth 4.2 with Classic (BR/EDR) for legacy audio and BLE for low-energy beaconing and smartphone connectivity.
  • 4MB external SPI flash for firmware and 32MB PSRAM for data-intensive applications like audio streaming.
  • Advanced power management with deep sleep current under 5 µA, enabling long-lasting battery operation.
  • Comprehensive peripheral interfaces: capacitive touch sensors, Hall sensor, SD card, Ethernet, high-speed SPI, UART, I2S, and I2C.
  • Fully certified RF module with integrated antenna, simplifying product design and regulatory compliance.
  • High output power of +19.5 dBm and receiver sensitivity of -97 dBm for extended wireless range and reliable links.

Applications

  • Smart home automation hubs and sensor nodes requiring local processing and cloud connectivity.
  • Industrial IoT (IIoT) gateways for data aggregation, protocol conversion, and wireless telemetry.
  • Audio streaming devices, MP3 decoders, and voice-controlled assistants leveraging the PSRAM.
  • Battery-powered wearable electronics and environmental monitoring sensors utilizing ultra-low sleep modes.
  • Prototyping and development of advanced IoT products with touch interfaces, SD storage, and Ethernet backup.

Technical Specifications

Microcontroller/SoCEspressif ESP32 (Xtensa 32-bit LX6 Dual-Core)
Wireless ProtocolsWi-Fi 802.11 b/g/n, Bluetooth 4.2 BR/EDR & BLE
Frequency Range2.4 GHz – 2.5 GHz
RF Transmit PowerUp to +19.5 dBm
RF Sensitivity-97 dBm (NZIF receiver)
Supply Voltage3.0V – 3.6V DC
Operating CurrentMeasured up to 500 mA
Sleep Current< 5 µA
SPI Flash4 MB
PSRAM32 MB
InterfacesSPI, UART, I2C, I2S, SD Card, Ethernet, Capacitive Touch, Hall Sensor
Antenna ConnectorIntegrated PCB Antenna
Operating TemperatureNot Specified
Dimensions (LxW)31.5 mm x 18 mm

Frequently Asked Questions

What is the difference between the ESP32-WROOM and ESP32-WROVER modules?

The primary difference is memory. The ESP32-WROVER includes an additional 32MB of SPI Pseudo Static RAM (PSRAM) alongside the standard SPI flash, while the WROOM typically only has flash memory. This PSRAM is crucial for buffering audio data, handling large images, or running memory-intensive algorithms without external hardware. Both share the same ESP32 dual-core processor and wireless capabilities, but the WROVER is better suited for advanced applications like music streaming, voice encoding, or complex data processing where extra volatile memory is required.

How do I program the ESP32-WROVER module, and what development frameworks are supported?

You can program the ESP32-WROVER using Espressif's official ESP-IDF framework, the Arduino IDE with the ESP32 board package, or MicroPython. For ESP-IDF, install the toolchain and use `idf.py` commands to build and flash over a USB-to-serial adapter. In Arduino IDE, add the ESP32 board URL via Preferences, select 'ESP32 Wrover Module' as your board, and connect via the designated GPIO0 (boot) and EN (reset) pins for uploading. Ensure your 3.3V power supply can deliver up to 500mA during active transmission. The module's integrated flash and PSRAM are automatically managed by the SDK.

What are the power requirements and how can I minimize current consumption for battery operation?

The module requires a stable 3.3V power supply (3.0V to 3.6V range) and can draw peak currents up to 500mA during Wi-Fi transmission. For battery operation, utilize the ESP32's deep sleep modes, which reduce current to less than 5 µA. Configure wake-up sources like timers, external GPIO interrupts, or touch sensor triggers. In your firmware, call `esp_deep_sleep_start()` after configuring the wake-up parameters. Ensure all unused peripherals are disabled and consider lowering the CPU frequency and Wi-Fi output power when full performance is not needed to further extend battery life.

Package Includes

  • 1 x ESP32-WROVER 4M 32Mbit Flash WiFi Bluetooth Module

Additional Information

Weight 0.012 kg
Dimensions 3.15 × 1.8 cm