Category:ESP8266 HDK

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List

SCH

Pin Map

ESP8266 GPIO NodeMCU Function D1 WIFI UNO R1 D1 mini ESP-12F
GPIO15 D8 SS / TXD2 D10 D8
GPIO13 D7 MOSI / RXD2 D11 D7 D7
GPIO12 D6 SPI_MISO D12 D6 D6
GPIO14 D5 SPI_SCK D13 D5 D5
GPIO16 D0 WAKE D2 D0
GPIO1 D10 TXD0 D1 TXD0 TXD
GPIO3 D9 RXD0 D0 RXD0 RXD
GPIO5 D1 SCL D3 D1 -
GPIO4 D2 SDA D4 D2 -
GPIO0 D3 FLASH D8 D3 -
GPIO2 D4 TXD1 D9 D4 On board LED

Circuits

  • auto reset circuits see Serial
  • Boot options
Function GPIO0 GPIO15 GPIO2
Design External Pull External Pull Internal Pull up
ESP-12S - - On board LED
bootloader flash mode 0V 0V 3.3V
Boot from Flash 3.3V 0V 3.3V
SDIO mode X 3.3V X

Reference for GPIO2:

Subcategories

This category has the following 3 subcategories, out of 3 total.

Pages in category "ESP8266 HDK"

The following 7 pages are in this category, out of 7 total.