Wishiot 2Pcs Esp 01S Esp 01S Wifi Wireless Serial Transceiver Module 4Mb Flash 3.3V Wi Fi Module Compatible With Ar Duino Ide

B>Feature: The Esp-01S Wifi Module Is Based On Esp8266 Chip, So Esp-01S Has All The Functions And Performance Of Esp8266. Comparing With Former Version Esp-01, Esp-01S Has Below Advantages: The Pcb Layout Has Changed For An Improvement In Wifi Radio Performance. 4Mb Flash Memory, Upgraded From 512Kb. Latest Version Esp-01S, With Stronger Signal 4Mb Flash Chip: Xmc 0H32Bhig, Xm25Qh32Cjig Or Xm25Qh32Chigu10Q, Wide Chip Or Narrow Chip, Ship By Random. Specification: Wifi Standard: 802.11 B/G/N Wake Up And Transmit Packets In < 2Ms Standby Power Consumption Of < 1.0Mw (Dtim3) Sdio 2.0, Spi, Uart Esp8266 Chip In 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