Espressif Wi-Fi modules | 2.4 GHz WiFi module Espressif ESP-WROOM-02 - SATRON electronics

2.4 GHz WiFi module Espressif ESP-WROOM-02

2.4 GHz WiFi module Espressif ESP-WROOM-02

Espressif provides the SMD module—ESP-WROOM-02 that integrates ESP8266EX. The module has been adjusted to get the best RF performance. We recommend using ESPWROOM-02 for tests or for further development.

The module size is (18.00 ± 0.10) mm x (20.00 ± 0.10) mm x (2.80 ± 0.10) mm. The type of flash used on this module is an SPI flash with a package size of SOP 8-150 mil. The gain of the on-board PCB antenna is 2 dBi.

ESP8266EX integrates a Tensilica L106 32-bit RISC processor, which achieves extra-low power consumption and reaches a maximum clock speed of 160 MHz. The Real-Time Operating System (RTOS) and Wi-Fi stack allow 80% of the processing power to be available for user application programming and development. The CPU includes the interfaces as below.

• Programmable RAM/ROM interfaces (iBus), which can be connected with memory controller, and can also be used to visit flash.
• Data RAM interface (dBus), which can connected with memory controller.
• AHB interface which can be used to visit the register.

Key Benefits

  • 2.4 GHz Wi-Fi module
  • Tensilica L106 integrated 32-bit RISC processor for ultra-low power consumption and reaches a maximum clock frequency of 160 MHz.
  • Support IEEE 802.11 b/g/n standards
  • Wi-Fi mode: Station/SoftAP/SoftAP + Station
  • Size 18 mm × 20 mm × 2.80 mm
  • Operating ambient temperature –40 °C ~ 85 °C
  • Green certification RoHS/REACH

ESP-WROOM-02 Specifications

Certification
  1. RF certification: SRRC, FCC, CE (RED), IC, NCC, KCC, TELEC (MIC)
  2. Wi-Fi certifaction: Wi-Fi Alliance
  3. Green certification: RoHS, REACH
Test
  1. Reliablity: HTOL/HTSL/uHAST/TCT/ESD
Wi-Fi
  1. Wi-Fi protocols: 802.11 b/g/n
Frequency range
  1. 2.4 GHz ~ 2.5 GHz (2400 MHz ~ 2483.5 MHz)
Hardware
  1. Peripheral interface: 
    1. UART/HSPI/I2C/I2S/IR Remote Control
    2. GPIO/PWM
  2. Operating voltage: 2.7 V ~ 3.6 V
  3. Operating current: Average: 80 mA
  4. Minimum current delivered by power supply: 500 mA
  5. Operating temperature range: –40 °C ~ 85 °C
  6. Storage temperature: –40 °C ~ 85 °C
  7. Package size (mm): 18.00 × 20.00 × 2.80

 

Software
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
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