Description
The Espressif ESP32 WROOM32 4M 32Mbit Flash Genuine Quality is an original, industrial-grade Wi-Fi and Bluetooth microcontroller module designed for scalable Internet of Things (IoT) hardware, smart automation, and wireless audio setups. Powered by the Espressif ESP32 dual-core Xtensa 32-bit LX6 processor running at adjustable clock frequencies up to 240 MHz, it delivers strong local computing power, hardware security encryption, and versatile peripheral support.
This generic module integrates a 4MB (32Mbit) SPI Flash IC alongside 520KB SRAM and 448KB ROM, providing adequate flash storage for custom firmware, web servers, and Over-The-Air (OTA) updates. For wireless communications, it supports 2.4 GHz Wi-Fi (802.11b/g/n) and dual-mode Bluetooth (classic BR/EDR and Bluetooth Low Energy v4.2) featuring an onboard meandered 3D PCB trace antenna.
Designed for direct PCB integration via castellated solder pads, the ESP32-WROOM-32 exposes up to 32 programmable GPIO pins supporting hardware UART, SPI, I2C, I2S, PWM, ADC, DAC, and capacitive touch sensing. Operating on 3.0V to 3.6V DC logic power, it is the foundational core engine for custom IoT PCBs, smart metering, remote telemetry nodes, and industrial automation controllers.
| Core Chipset | Genuine Espressif ESP32 dual-core Xtensa 32-bit LX6 microprocessor (@ up to 240 MHz) |
|---|---|
| Memory & Storage | 4MB (32Mbit) External SPI Flash + 520KB SRAM + 448KB ROM |
| Wireless Protocols | 2.4 GHz Wi-Fi (802.11b/g/n up to 150 Mbps) & Bluetooth 4.2 BR/EDR/BLE |
| Antenna Type | High-efficiency onboard PCB trace antenna |
| Low Power Operation | Integrated Ultra-Low Power (ULP) co-processor & multiple deep-sleep modes |
| Operating Voltage Range | 3.0V to 3.6V DC (3.3V nominal) |
| Comprehensive I/O | Exposes GPIOs supporting UART, SPI, I2C, I2S, PWM, ADC, DAC, CAN 2.0 (TWAI), and Touch Sensors |
| Hardware Security | Cryptographic hardware acceleration (AES, RSA, ECC, SHA) & Flash Encryption |
| SMT Form Factor | Compact 18mm × 25.5mm × 3.1mm castellated SMD module |
What is the operating voltage?
3.0V to 3.6V DC (3.3V nominal).
Which interface does it use?
2.4 GHz Wi-Fi (802.11b/g/n up to 150 Mbps) & Bluetooth 4.2 BR/EDR/BLE.
Is it compatible with ESP32?
Yes. It works with ESP32 projects.
Can I buy the Espressif ESP32 WROOM32 4M 32Mbit Flash Genuine Quality in Kanpur?
Yes – buy online with delivery across India, or pick it up from the iTechBuilders store, Damodar Nagar, Kanpur.
