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by Paul Efford
Thu Mar 14, 2019 4:21 pm
Forum: General Discussion
Topic: UART as wake-up source in Light sleep mode
Replies: 20
Views: 4486

Re: UART as wake-up source in Light sleep mode

Another solution to awake ESP32 from sleep (also from DEEP SLEEP) would be: 1) Cabling (direct connecting) from SERIAL_RX_PIN (=GPIO_NUM_3) to any free RTC GPIO, for example, GPIO_27. 2) We cannot do "esp_sleep_enable_ext1_wakeup(MULTIPLE_INT_BITMASK, ESP_EXT1_WAKEUP_ANY_HIGH);" because SERIAL_RX_PI...

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