ESP-WROOM-02D - Wi-Fi module with ESP8266EX chip and integrated antenna - Reel - ESPRESSIF

ESP-WROOM-02D – Optimized Wi-Fi IoT Module (2 MB Flash, ESP8266-based)

The ESP-WROOM-02D is an enhanced wireless module based on Espressif Systems’ popular ESP8266EX chip. Compared to its predecessor, the ESP-WROOM-02, it features optimized RF performance, ensuring a more stable connection for IoT applications. The built-in 2 MB SPI flash memory offers sufficient space for most smart home and industrial control software.

Key Product Features

• Powerful Processor: Tensilica L106 32-bit RISC processor capable of operating at clock speeds of up to 160 MHz.
• Optimized Wi-Fi: Supports 802.11 b/g/n protocols in the 2.4 GHz band, with excellent RF sensitivity.
• Built-in antenna: Features an integrated PCB antenna, which simplifies hardware design.
• Flexible operating modes: Supports Station, SoftAP, and mixed (SoftAP + Station) modes.
• Security: WPA/WPA2 security protocols, as well as WEP, TKIP, and AES encryption options.

Technical Specifications

Why choose the ESP-WROOM-02D module?

The module relies on the power of the ESP8266EX chip, while its optimized antenna design ensures better signal transmission even in denser radio frequency environments. Software development is greatly facilitated by support for the AT command set and cloud-based SDKs, allowing for quick integration into any modern network. Its ultra-low-power (Deep-sleep) mode makes it ideal for battery-powered sensors as well.

Applications:

• Smart home accessories (smart plugs, lighting control)
• Wireless sensor networks
• Industrial wireless data collection
• Battery-powered IoT devices

The ESP-WROOM-02D is a reliable and cost-effective solution that is an excellent choice for projects based on the mature ESP8266 ecosystem, where both size and stability are important considerations.