ESP32 Wroom-32E 4MB Chip

The ESP32-WROOM-32E is a powerful and versatile wireless SoC module by Espressif, integrating Wi-Fi and Bluetooth (Classic + BLE) in a compact form factor. It is built around a dual-core ESP32 microcontroller and includes onboard flash memory, making it ideal for IoT, embedded control, and smart device applications.

Technical Specifications:

• Microcontroller: ESP32 dual-core Xtensa® 32-bit LX6
• Clock frequency: Up to 240 MHz
• Flash memory: 4 MB SPI Flash (on-module)
• SRAM: ~520 KB internal
• Wireless connectivity:

  • Wi-Fi: 802.11 b/g/n (2.4 GHz)

  • Bluetooth: v4.2 BR/EDR + BLE

• Antenna: Integrated PCB antenna
• Operating voltage: 3.0 – 3.6 V (typ. 3.3 V)
• I/O pins: Up to 34 GPIOs
• Interfaces: UART, SPI, I²C, I²S, PWM, ADC, DAC, SDIO
• Security: AES, SHA-2, RSA, secure boot, flash encryption
• Operating temperature: –40 °C to +85 °C
• Package: SMD module, castellated edges

Features:

• Integrated Wi-Fi and Bluetooth in a single module
• Dual-core processing for multitasking
• Low-power modes for battery-powered designs
• Built-in TCP/IP stack and Wi-Fi drivers
• Secure hardware acceleration for encryption
• Large ecosystem and support (Arduino, ESP-IDF, MicroPython)
• Compact design with certified RF performance

Applications:

• Internet of Things (IoT) devices
• Smart home automation (lights, switches, sensors)
• Wearable and portable electronics
• Industrial monitoring and control
• Wireless data logging systems
• Robotics and automation projects
• Smart meters and dashboards