AITRIP 5PCS ESP8266 ESP-01S WiFi Serial Transceiver Module with 1MB Flash DIP-8 3-6V for Arduino (ESP-01S)

Feature: 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 units19. 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 The PCB layout has changed for an improvement in WiFi radio performance. Package Including 5pcs * ESP8266 ESP-01S WiFi Serial Transceiver Module.