https://w.electrodragon.com/w/index.php?action=history&feed=atom&title=ESP8266_GPIO 2026-06-04T21:24:47Z Revision history for this page on the wiki MediaWiki 1.37.2 https://w.electrodragon.com/w/index.php?title=ESP8266_GPIO&diff=32470&oldid=prev 2021-12-30T06:30:37Z

<p></p> <p><b>New page</b></p><div>Internal pull-up/-down resistors<br /> * GPIO 0-15 all have a built-in pull-up resistor, just like in an Arduino. GPIO16 has a built-in pull-down resistor.<br /> <br /> GPIO16<br /> * D0(GPIO16) can only be used as gpio read/write. No support for open-drain/interrupt/pwm/i2c/ow.<br /> <br /> * https://nodemcu.readthedocs.io/en/master/modules/gpio/<br /> * https://tttapa.github.io/ESP8266/Chap04%20-%20Microcontroller.html<br /> <br /> D1 (5)<br /> D2 (4)<br /> D3 (0)<br /> D4 (2)<br /> <br /> #define D5 (14)<br /> #define D6 (12)<br /> #define D7 (13)<br /> #define D8 (15)<br /> <br /> #define RX (3)<br /> #define TX (1)<br /> <br /> [[category: ESP8266 HDK]]</div>

Chao