ESP8266 ESP-01 Serial Port WIFI Transceiver Wireless Module + Adapter Module

Description Transceiver Wireless Module It run LWIP802 11 bgnWIFI Direct P2P SOFT APBuilt in TCP IPThe AT command is perfect efficient conciseSupport three modes AP STA and AP STA coexistence modeA stable power supply was pure battery powered can solve everythingESP8266 start you need to GPIO15 pull down if the module pin bitmapWithout this pin the internal representatives have pulled down without any treatment GPIO0 GPIO2 pull high The default is two feet high so not Do any processing CH PD This pin must be pulled high Our all modules meet the above two conditions to work properly Adapter Module A adapter module for ESP 01 Wi Fi module 3 3V voltage regulator circuit and onboard level conversion circuit can make 5V microcontroller easy to use with ESP 01 Wi Fi module Also the item can be used with UNO R3 or compatible board Here is schenmatic http img banggood com file products 20160408023336ESP 01 20Adapter 20module 20Schenmatic pdfFeatures Working voltage 4 5 5 5V On board 3 3V LDO Regulator Working current 0 240mAInterface logic voltage 3 3V 5V compatible On board level shift circuit Package included 1 x ESP 01 Wireless module1 x ESP 01 Adapter module