nullSchematic Click here to openMore product With OLED DHT11 version Product ID 1471313With DHT11 version Product ID 1471311Only ESP8266 IOT Development Board version Product ID 1471216Overview This module takes the ESP8266 module as the core cooperates with the voltage regulator circuit USB TTL circuit and serial port download circuit to realize the SDK development of ESP8266 and realize the Internet of Things function With the OLED and DHT11 modules the temperature is reported to the cloud and the messages sent by the cloud are displayed Feature Working voltage 5V USB powered Core chip ESP8266 module ESP 12F Expansion interface 4Pin OLED DHT11Realize the function access the Internet realize the Internet of ThingsSymbolDescriptionP1 MiniUSBPower supply Serial communicationP2 P5 module interfaceOLED DHT11P3 P4 pin header interfaceVCC GND IO portP6 moduleESP8266 module ESP 12F Package includes 1 x ESP8266 IoT Development Board1 x USB Cable1 x Yellow Blue OLED Display