TECNOULAB 5pcs Enhanced Version ESP8266 ESP 01 WiFi Series Wireless Transceiver Module

【ESP-01】ESP8266 WiFi module is a standalone SOC with a built-in TCP/IP protocol stack that can give any microcontroller access to your WiFi network. This module comes with AT command firmware which allows you to get functionality like arduino wifi shield, however you can load different firmwares to make your own application in memory and processor modules. 【Compatible】This module has a built-in 32-bit low-power 80MHz processor that can be used for custom firmwares. For more details see: NODEMCU (www.nodemcu.com/). The ESP8266 supports APSD for VoIP applications and Bluetooth coexistence interfaces, contains a self-calibrated RF that allows it to operate in all operating conditions and requires no external RF parts. 【Compact Design】The ESP8266 module supports 3.3V logic level only and will not work directly with 5V devices (for serial and GPIO access). You need a 3.3V compatible device or you will need to convert the levels before use. 【Parameter-1】802.11 b/g/n Wi-Fi Direct (P2P), soft AP Built-in TCP/IP protocol stack Integrated TR switch, balun, LNA, power amplifier and corresponding network PLLs, regulators, DCXO and integrated power management units 19.5dBm output power in 802.11b mode Ap. water the current of fuge