8266 GPIO pins and pull-down configuration


Most of the GPIO pins on the 8266 have internal pullup resistors. There are hints that pull-downs maybe possible as well https://docs.espressif.com/projects/esp8266-rtos-sdk/en/latest/api-reference/peripherals/gpio.html

Has anyone done this? And if so, can it be done in the Arduino environment or do I need to go another level deeper?


David Duehren

According to the documentation on the ESP8266 pulldown is only supported for pin 16 (for that you cannot activate a pullup). But you can simply configure it using the pinMode() call.