The ESP32-WROOM-32E (16MB) is a highly integrated Wi-Fi + Bluetooth + Bluetooth Low Energy (BLE) module developed by Espressif. It is based on the ESP32-D0WD-V3 chip and features a dual-core processor, rich peripherals, and large flash memory—making it ideal for IoT, embedded systems, and wireless applications.
This module is part of the upgraded WROOM-32E series, offering improved RF performance, better stability, and enhanced reliability compared to earlier versions like the 32D.
Key Features (16MB Variant)
Processor & Memory
Dual-core Xtensa® 32-bit LX6 CPU, up to 240 MHz
520 KB SRAM + 448 KB ROM
16 MB SPI Flash (large storage for firmware/data)
Optional variants with PSRAM for memory-intensive tasks
Connectivity
2.4 GHz Wi-Fi (802.11 b/g/n)
Bluetooth v4.2 (BR/EDR + BLE)
Integrated PCB antenna (no external antenna needed)
Peripherals & Interfaces
Up to 26–38 GPIOs (depending on usage)
Supports:
UART, SPI, I2C, I2S
PWM (LED & motor control)
ADC, DAC
Capacitive touch sensors
SD/SDIO/MMC, CAN (TWAI)
Electrical & Physical
Operating voltage: 3.0V – 3.6V
Operating temperature: –40°C to +85°C (industrial range)
Compact size: 18 × 25.5 × 3.1 mm
Typical Applications
Smart home devices (lighting, appliances)
IoT sensors and gateways
Industrial automation systems
Wearables and smart gadgets
Audio/voice processing (thanks to dual-core + large flash)