Deep Sleep Mode on ESP-WROOM-32
The consumption power of EWP-WROOM-32 when in deep sleep is very low. The USB type ammeter showed below 0.00 mA.
One BME280, a thermo, humidity, and pressure sensor was attached to the ESP32, and the ESP32 was programmed with use of Arduino development software. The console showed that Wi-Fi and the sensor was activated after a deep sleep cycle.