https://learn.sparkfun.com/tutorials/esp8266-thing-development-board-hookup-guide/all 3/24
This section provides a quick overview of the Thing Dev Board’s main components.
Serial and I C Header
The header on the left provides an interface for serial, I C, and power:
Pin
Label
ESP8266 I/O
Function(s)
Notes
GND Ground (0V).
3V3 3.3V
2 GPIO2, SDA Can either be used as ESP8266 GPIO2 or I C serial
data (SDA).
14 GPIO14,
SCL, SCLK
Can either be used as ESP8266 GPIO14 or I C serial
clock (SCL).
Also used as the SPI clock (SCLK).
RST The ESP8266's active-low reset input. The board
includes a 10kΩ pull-up resistor on this pin.
2
2
2
2
To Next Page
Loading...