Product description

ESP8266 ESP-01S is a ultra-low power wifi transceiver module specially designed for IOT. It support the standard 802.11 b/g/n wireless protocol with STA/AP/STA+AP working mode and serial interface easy to connect to your arduino development board for your DIY wifi projects.

Features

• The PCB layout has changed for an improvement in WiFi radio performance 
• 1MB Flash Memory upgraded from 512KB 
• SDIO 2.0, SPI, UART 
• 32-pin QFN package 
• 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 andlt;10uA 
• Integrated low power 32-bit CPU could be used as application processor 
• SDIO 1.1/2.0, SPI, UART 
• STBC, 1×1 MIMO, 2×1 MIMO 
• A-MPDU andamp; A-MSDU aggregation andamp; 0.4ms guard interval 
• 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 

Package Included: 
1 x Arduino ESP8266 Wireless Transceiver ESP-01S