ESP32 WROVER E CH340 ESP32 DEVKITC Core Board for Arduino

The ESP32 WROVER E CH340 is a powerful dual-core microcontroller development board featuring integrated 8MB PSRAM and 4MB flash memory, enabling complex IoT applications with real-time processing capabilities. Professional IoT developers, embedded systems engineers, and electronics hobbyists use this board to prototype WiFi and Bluetooth-enabled projects ranging from smart home automation to industrial sensor networks. This board solves the memory constraints of standard ESP32 boards by providing extended PSRAM, allowing developers to handle large data buffers, image processing, and machine learning inference directly on the microcontroller without external memory modules.

Product Overview

The ESP32 WROVER E incorporates Espressif's dual-core Tensilica LX6 processor running at 240MHz with integrated 802.11 b/g/n WiFi and Bluetooth 4.2 LE connectivity. The CH340 USB-to-serial converter chip enables seamless communication with development environments like Arduino IDE and PlatformIO, eliminating the need for external programmers. The board features 8MB of external PSRAM (Pseudo-SRAM) which significantly expands the available memory for heap allocation, making it ideal for applications requiring large buffers such as audio streaming, video processing, or complex data logging systems. The integrated voltage regulators support 5V USB input with automatic power management and protection circuits.

This development board stands out due to its combination of high-speed processing, abundant memory resources, and built-in wireless connectivity in a compact form factor. The WROVER variant includes an integrated antenna for reliable WiFi and Bluetooth reception, while the CH340 chipset provides reliable serial communication without driver conflicts on modern operating systems. The board operates at 3.3V logic levels with 5V tolerant inputs on most GPIO pins, making it compatible with existing Arduino shields and sensor modules. Pre-loaded bootloader firmware allows direct sketch uploading via USB without requiring additional flashing tools.

Key Specifications

Specification	Details
Product Type	WiFi and Bluetooth Microcontroller Development Board
Brand	Espressif Systems
Origin	Original/Authentic
Warranty	7 days on manufacturing defects
Shipping	1-5 days from Bengaluru
Delivery	7-8 days across India
Support	24/7 via Email and WhatsApp
Processor	Dual-core Tensilica LX6 @ 240MHz
RAM	520KB SRAM + 8MB PSRAM
Flash Memory	4MB SPI Flash
Wireless Connectivity	802.11 b/g/n WiFi and Bluetooth 4.2 LE
USB Interface	CH340 USB-to-Serial Converter
GPIO Pins	34 pins (25 usable as GPIO)
Analog Inputs	12-bit ADC with 18 channels
Operating Voltage	3.3V logic with 5V USB input
Board Dimensions	55mm x 28mm

Key Features

• 8MB External PSRAM for memory-intensive applications like audio buffering, image processing, and machine learning model inference without external memory modules
• Dual-core 240MHz processor with independent task scheduling enabling simultaneous WiFi communication and real-time sensor processing
• CH340 USB-to-Serial converter providing stable driver support across Windows, macOS, and Linux without compatibility issues
• Integrated 802.11 b/g/n WiFi and Bluetooth 4.2 LE for seamless IoT connectivity to cloud platforms and mobile devices
• 18-channel 12-bit ADC for precise analog sensor measurements with built-in temperature sensor for thermal monitoring
• SPI, I2C, UART, and CAN interfaces enabling connection to multiple peripheral devices simultaneously
• Deep sleep mode consuming as low as 10uA for battery-powered IoT applications with extended runtime
• Pre-loaded bootloader with Arduino IDE and PlatformIO compatibility for rapid prototyping without additional configuration

Applications and Use Cases

• Smart Home Automation: Control lighting, temperature, and security systems via WiFi with real-time sensor feedback and cloud integration for remote monitoring
• Industrial IoT Monitoring: Deploy on factory floors to collect sensor data from multiple machines, process locally, and transmit to cloud analytics platforms
• Audio Streaming Devices: Utilize 8MB PSRAM to buffer audio streams from WiFi sources, enabling smart speakers and wireless audio receivers
• Environmental Monitoring Stations: Collect temperature, humidity, air quality, and pressure data from multiple sensors with WiFi transmission to weather networks
• Wearable Device Gateways: Process Bluetooth signals from fitness trackers and health sensors, aggregate data, and upload to mobile applications
• Robotics and Autonomous Systems: Dual-core processing enables simultaneous motor control and WiFi-based remote operation with real-time telemetry
• Edge AI Applications: Run lightweight machine learning models for image classification or anomaly detection directly on the board without cloud dependency
• Wireless Mesh Networks: Create self-healing network topologies for large-scale sensor deployments in agriculture, mining, and infrastructure monitoring

How to Use

Begin by installing the CH340 drivers on your development machine if necessary, then connect the ESP32 WROVER E to your computer via a USB cable. Open Arduino IDE, navigate to Tools menu, and select the ESP32 Dev Module board type with appropriate partition scheme. Install the ESP32 board package through the Boards Manager if not already installed. Write your sketch utilizing the extensive ESP32 libraries for WiFi connectivity, Bluetooth communication, and PSRAM allocation using functions like ps_malloc() for external memory allocation. Compile and upload your sketch directly to the board using the Upload button, which automatically triggers the bootloader for programming.

For advanced applications requiring PSRAM usage, declare large buffers using ps_malloc() instead of standard malloc() to ensure allocation from external PSRAM rather than limited internal SRAM. Configure WiFi credentials using WiFi.begin() with your SSID and password, then implement connection callbacks to handle WiFi events. For Bluetooth applications, use the BluetoothSerial library for classic Bluetooth or BLEDevice for Bluetooth Low Energy implementations. Leverage the dual-core architecture by running time-critical tasks on Core 0 and communication tasks on Core 1 using xTaskCreatePinnedToCore() for optimal performance. Monitor power consumption in battery applications by implementing deep sleep modes with appropriate wake-up sources like GPIO or timer interrupts.

Frequently Asked Questions

What is the difference between ESP32 WROVER E and standard ESP32?

The ESP32 WROVER E includes 8MB of external PSRAM and 4MB flash memory compared to the standard ESP32 which has only 520KB internal SRAM. This additional memory enables running complex applications like audio streaming, image processing, and machine learning models. The WROVER variant also includes an integrated antenna for improved wireless range and reliability.

Can I use this board with Arduino IDE directly?

Yes, the ESP32 WROVER E is fully compatible with Arduino IDE. Install the ESP32 board package through the Boards Manager, select ESP32 Dev Module as your board type, and upload sketches directly via USB. The CH340 converter ensures reliable serial communication without driver conflicts on most systems.

How do I access the 8MB PSRAM on this board?

Use ps_malloc() function instead of standard malloc() to allocate memory from external PSRAM. In Arduino IDE, enable PSRAM in Tools menu under PSRAM option. For large buffers exceeding 100KB, PSRAM allocation is recommended to preserve internal SRAM for stack and real-time operations.

What is the maximum current consumption of this board?

During active WiFi transmission, the board consumes approximately 80-160mA depending on transmission power. In deep sleep mode with RTC memory enabled, consumption drops to 10-20uA. For battery applications, implement periodic WiFi connectivity with extended sleep intervals to maximize runtime.

Does this board support both WiFi and Bluetooth simultaneously?

Yes, the dual-core processor enables simultaneous WiFi and Bluetooth operation. However, they share the same RF front-end, so simultaneous high-bandwidth usage may reduce performance. The dual-core architecture allows one core to handle WiFi while the other manages Bluetooth communication effectively.

When will I receive my order?

Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.

What is your return and warranty policy?

We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.

Are bulk discounts available?

Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.

Why Buy from The Engineer Store

• Genuine Products: Sourced directly from authorized distributors with authentication
• Expert Team: Our technical team validates every product before listing
• Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
• Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
• Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
• Technical Support: 24/7 expert guidance via email and WhatsApp
• Returns: 7-day return policy on manufacturing defects only

Buy ESP32 WROVER E CH340 ESP32 DEVKITC Core Board for Arduino Online in India

Purchase the ESP32 WROVER E CH340 ESP32 DEVKITC Core Board for Arduino online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on ESP32 WROVER E CH340 ESP32 DEVKITC Core Board for Arduino with fast shipping and expert support.

Our team in Bengaluru is available 24/