Grove - UART WiFi is a serial transceiver module featuring the ubiquitous ESP8266 IoT SoC. With integrated TCP/IP protocol stack this module lets your microcontroller interact with WiFi networks with only a few lines of code. Each ESP8266 module comes pre-programmed with an AT command set firmware meaning you can send simple text commands to control the device. The SoC features integrated WEP WPA/WPA2 TKIP AES and WAPI engines can act as an access point with DHCP can join existing WiFi networks and has configurable MAC and IP addresses.
Features
- Grove 4-pin connector (RXTXVCCGND)
- 802.11 b/g/n protocol (2.4GHz)
- WiFi Direct (P2P) soft-AP
- Supports three modes: AP STA and AP+STA coexistence mode
- Integrated TCP/IP protocol stack
- LwIP (lightweight IP)
- Integrated low power 32-bit CPU could be reprogrammed as an application processor
- Integrated temperature sensor
- Serial UART Interface
- Multi-queue QoS management
- Wake up and transmit packets in < 2ms
- Metal shielding
- Onboard ceramic antenna
- Reset switch
Specification
- Input voltage: 3V / 5V
- Baud Rate: 115200
- Based on ESP8266 ESP-07 SoC
- AT Firmware: esp_iot_sdk_v1.1.0 + Seeed modifications:
- 2x additional AT commands to control blue Link LED.
- Register red WiFi LED to the ESP8266 wifi state LED.
- AT command set
- SDIO 1.1/2.0 SPI UART
- Five power states: OFF DEEP_SLEEP SLEEP WAKEUP and ON.
- Standby power consumption of < 1.0mW (DTIM=3)
- Integrated TR switch balun LNA power amplifier and matching network
- Integrated PLLs regulators DCXO and power management units
- +19.5dBm output power in 802.11b mode
- Power down leakage current of <10uA
- Hardware accelerators for CCMP (CBC-MAC counter mode) TKIP (MIC RC4) WAPI (SMS4) WEP (RC4) CRC
- WPA/WPA2 PSK and WPS driver
- A-MPDU & A-MSDU aggregation & 0.4ms guard interval
- Dimensions: 25.43mm x 20.35mm
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