ESP8266 Esp-01 Serial WIFI Wireless Transceiver.
ESP8266 is a highly integrated chip designed for the needs of a new connected world. It offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or offload all Wi-Fi networking functions from another application processor.
ESP8266 has powerful onboard processing and storage capabilities that allow it to be integrated with the sensors and other application-specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Its high degree of on-chip integration allows for minimal external circuitry, and the entire solution, including the front-end module, is designed to occupy minimal PCB area.
ESP8266 Esp-01 Serial WIFI Wireless Transceiver Specification:
802.11 b/g/n
Wi-Fi Direct (P2P), soft-AP
Integrated TCP/IP protocol stack
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
An integrated low-power 32-bit CPU could be used as an application processor
SDIO 1.1/2.0, SPI, UART
STBC, 1×1 MIMO, 2×1 MIMO
A-MPDU & A-MSDU aggregation & 0.4ms guard interval
Wake up and transmit packets in < 2ms
Standby power consumption of < 1.0mW (DTIM3)
1. High quality & low price
2. LWIP agreement
3. Supports 3 modes: AP, STA, AP, and STA
4. Perfect and simple AT commands
ESP8266 Esp-01 Serial WIFI Wireless Transceiver Features:
SDIO 2.0, SPI, UART
32-pin QFN package
Integrated RF switch, balun, 24dBm PA, DCXO, and PMU
Integrated RISC processor, on-chip memory, and external memory interfaces
Integrated MAC/baseband processors
Quality of Service management
I2S interface for high fidelity audio applications
On-chip low-dropout linear regulators for all internal supplies
Proprietary spurious-free clock generation architecture
Integrated WEP, TKIP, AES, and WAPI engines
ESP8266 Esp-01 Serial WIFI Wireless Transceiver Solution:
Supports APSD for optimal VoIP applications
Patented spurious noise cancellation algorithm for integration in SOC applications
Supports Bluetooth co-existence interface
Self-calibrated RF to ensure optimal performance under all operating conditions
Zero factory tuning
No external RF components
This module requires a 3.3 volt supply for VCC and 3.3V logic. It is not 5V tolerant. Connecting RX or TX on 5V Arduino will destroy this module. You must use a logic level converter or a 3.3V Arduino 3.3V supply on the Arduino Uno has an inadequate current capability to power this module. You must provide a separate, higher 3.3V supply(about 300mA or higher)