ESP32-S2 GPIO18
GPIO18 / ADC2_CH7 / DAC_2
Use with care
- Fine for many uses, but check the warnings below first.
What GPIO18 can do
- Digital input/output
- ADC2 analog input (unusable while Wi-Fi is active)
- DAC analog output
- PWM output (LEDC)
Warnings for GPIO18
ADC2 unusable with Wi-Fi
ADC2 is claimed by the Wi-Fi driver; analogRead() on this pin fails while Wi-Fi is active. Prefer ADC1 pins.
Open the interactive ESP32-S2 pinout →All ESP32-S2 pins
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ESP32 Pinout Studio - free interactive pinout reference. Pin data generated from Espressif's official KiCad libraries. esp32pin.com