Espressif ESP-WROOM-02 2.5V WiFi Module 802.11g 802.11b 802.11n ESP-WROOM-02

Espressif ESP-WROOM-02 WiFi Module ESP-WROOM-02 is a low-power 32-bit MCU WiFi module operating at 2.5V supply voltage. Designed with the integrated ESP8266EX WiFi chip, this small SMD module offers ideal RF performance and is compact with dimensions 18 mm length x 20 mm width x 3 mm height.

Operating across 2.4 GHz to 2.5 GHz frequency band supporting wireless protocols 802.11g, 802.11b, and 802.11n, it enables versatile IoT applications requiring stable and efficient wireless communication. The module supports WPA and WPA2 security standards ensuring secure WiFi connections.

This ESP-WROOM-02 module features a low-power mode consuming only 1.2 mW when connected to WiFi using DTIM10, suitable for battery-powered and energy-sensitive applications. Memory resources include 16 Mb SPI Flash for programs and data storage alongside internal SRAM and ROM for operational tasks.

The on-board ESP8266EX controller integrates Tensilica L106 32-bit microcontroller combined with a 16-bit RISIC processor, permitting advanced computing capabilities. The module interfaces include HSPI for SPI Flash and display connections, PWM for controlling LEDs and actuators (4 to 8 channels), IR for remote controls at 38 kHz frequency, ADC for voltage monitoring, I2C for external sensor integration, UART for serial communications, and I2S for audio data processing.

Developers have full access to the Espressif ESP8266 SDK, providing software tools and examples such as smart lighting and smart plugs for rapid development and deployment of IoT solutions. The module is fully certified to Wi-Fi Alliance protocols and multiple international regulatory standards including FCC, CE, Telec, IC, and KCC. Compliance with RoHS, Halogen Free, REACH, and CFSI environmental directives add assurance of sustainability and safety.

With its compact size, extensive interfacing options, and robust wireless capabilities, the ESP-WROOM-02 module is ideally suited for compact industrial, commercial, and consumer IoT devices requiring reliable WiFi connectivity in demanding applications including home automation, telemetry, sensor networks, and embedded smart systems.

Integrates ESP8266EX for high-performance WiFi connectivity. Compact SMD design measuring 18 x 20 x 3 mm for space-constrained applications. Low-power operation consuming 1.2 mW during WiFi connectivity with DTIM10. Supports WPA/WPA2 security protocols for secure wireless communication.

Wide operating temperature range from -40°C to +85°C for harsh environments. Multiple interfaces including HSPI, PWM, IR, ADC, I2C, UART, and I2S. Equipped with 16 Mb SPI Flash and internal SRAM/ROM memory resources. Certified by Wi-Fi Alliance, FCC, CE, TELEC, IC, and KCC.

Compliant with RoHS, Halogen Free, REACH, and CFSI requirements. Supports development using Espressif ESP8266 SDK with IoT application examples. Explore Espressif Wi-Fi Modules and other networking components on EnvMart for reliable wireless connectivity solutions.