ESP8266EX 32bit TCP IP WIFI to UART Wireless Module esp8266 Low Power Networking WIFI Module ESP
[IC]：ESP8266
[Frequency]：2.4GHz
[Distance]：300m
[Interface]：UART/HSPI/I2C/I2S/IR Remote Control
[Introduction]：ESP-WROOM-02D and ESP-WROOM-02U are ESP8266EX-based modules developed by Espressif. Compared to ESP-WROOM-02, the RF performance of ESP-WROOM-02D and ESP-WROOM-02U are optimized. Besides, ESP-WROOM-02U integrates a U.FL connector. Please see Chapter 8 for details of U.FL connector.
| WiFi | Specifications |
| RF certification | SRRC, FCC, CE (RED), IC, NCC, KCC, TELEC (MIC) |
| Wi-Fi protocols | 802.11 b/g/n |
| Frequency range | 2.4GHz~2.5GHz(2400M~2483.5M) |
| Hardware | Specifications |
| Peripheral interface | UART/HSPI/I2C/I2S/IR Remote Control GPIO/PWM |
| Operating voltage | 2.7V ~ 3.6V |
| Operating current | Average: 80 mA |
Minimum current delivered by power supply | 500 mA |
| Operating temperature range | -40℃ ~ +85℃ |
| Storage temperature | -40℃ ~ +85℃ |
| Software | Specifications |
| Wi-Fi mode | Station/SoftAP/SoftAP+Station |
| Security | WPA/WPA2 |
| Encryption | WEP/TKIP/AES |
| Firmware upgrade | UART Download/OTA (via network)/Download and write firmware via host |
| Software development | Supports Cloud Server Development/SDK for custom firmware development |
| Network protocols | IPv4、TCP/UDP/HTTP/FTP |
| User configuration | AT Instruction Set, Cloud Server, Android/iOS app |