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Hello, I notice the supply for the RTC is also connected to the general 3V3 supply on the schematic for the ESP32- C3-MINI-1-H4 module.
If I supply3.3 V power to the ESP32- C3-MINI-1-H4 but have the enable line low, so chip impaired, will the RTC keep on running if it has been set before?
Or for the RTC to remain running but the chip powered down will I need to produce my own layout to break out the RTC 3V3 pin and thus I won’t be suitable to use the ESP32- C3-MINI-1-H4 module?
Thanks
Neither. The ESP32-C3 needs to have all 3.3 V power pins powered at the same time, it's not possible to power the RTC domain independently. Disabling the chip using EN will shut down the wholeness of the chip, including the RTC. To make use of the RTC in low-power mode, you need to use software to pRead more
Neither. The ESP32-C3 needs to have all 3.3 V power pins powered at the same time, it’s not possible to power the RTC domain independently. Disabling the chip using EN will shut down the wholeness of the chip, including the RTC. To make use of the RTC in low-power mode, you need to use software to put the chip into a deep sleep.
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