WEMOS D1 Mini Pro 16M Bytes with External Antenna Connector ESP8266 CP2104

Description WEMOS D1 Mini Pro 16M Bytes with External Antenna Connector ESP8266 and CP2104 usb-to-serial Description: SoC: Espressive ESP-8266EX WiFi 802.11 b/g/n, ceramic antenna IPEX connector for external antenna Operating Voltage: 3.3V I/O Pins: 11 Analog input: x1, max. Permissible voltage 3.2V UART: x1 CPU Frequency: 80 MHz / 160 MHz Flash Memory: 16MB (128MBit) Micro USB port for programming and focusing Serial to USB converter CP2104. Drivers are available on this page for Windows (XP, 7, 8, 10, CE, 2000), Linux, Android, and macOS Power supply 5V Micro USB port Power Max. 5V via the USB port or Pin 5V on the board A reset button that resets the SoC and the 3.3V and GND pins Dimensions: 34.2 x 25.6mm Package: Long female pins x2pcs Short female pins x2pcs Normal pins x2pcs WeMos D1 mini Pro x1pcs   Pinout Pin on board Function ESP-8266 TX TXD TXD RX RXD RXD A0 Analog input, max 3.3V input A0 D0 IO GPIO16 D1 IO, SCL GPIO5 D2 IO, SDA GPIO4 D3 IO, 10k Pull-up GPIO0 D4 IO, 10k Pull-up, BUILTIN_LED GPIO2 D5 IO, SCK GPIO14 D6 IO, MISO GPIO12 D7 IO, MOSI GPIO13 D8 IO, 10k Pull-down, SS GPIO15 G GND GND 5V 5V – 3V3 3.3V 3.3V RST Reset RST