ESP8266 OLED WiFi Development Board 0.91 Inch ESP8266 OLED Display CP2102 Support Arduino IDE ESP8266 NodeMCU LUA
Onboard 0.91-inch 128*32 dot matrix OLED display
Main chips: espressif ESP8266 chip, with CP2014 USB to serial chip, Leads all pins of ESP8266
12 digital pins can be configured to read, write, IIC, SPI, the middle, PWM and other functions
Integrated 0.91 inch 128 * 32 OLED
Can be programmed in Ard uino and NodeMCU environments. Operation is consistent with NodeMCU
Working voltage: 3.3V ~ 7V
documentation and pinout Diagram: https://www.adrive.com/public/drzr3P/datasheet%20F000905.rar
Document link: https://drive.google.com/open?id=0B8DSGdAr8_31d19WQmN6SE1fLVE, https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series