diff --git a/esphome/components/esp8266/gpio.cpp b/esphome/components/esp8266/gpio.cpp index cb703c18e1..7805889b40 100644 --- a/esphome/components/esp8266/gpio.cpp +++ b/esphome/components/esp8266/gpio.cpp @@ -50,6 +50,13 @@ void ESP8266GPIOPin::pin_mode(gpio::Flags flags) { mode = OUTPUT; } else if (flags == (gpio::FLAG_INPUT | gpio::FLAG_PULLUP)) { mode = INPUT_PULLUP; + if (pin_ == 16) { + // GPIO16 doesn't have a pullup, so pinMode would fail. + // However, sometimes this method is called with pullup mode anyway + // for example from dallas one_wire. For those cases convert this + // to a INPUT mode. + mode = INPUT; + } } else if (flags == (gpio::FLAG_INPUT | gpio::FLAG_PULLDOWN)) { mode = INPUT_PULLDOWN_16; } else if (flags == (gpio::FLAG_OUTPUT | gpio::FLAG_OPEN_DRAIN)) {