The current consumption goes down to 0.15mA – 10 ♚ if the ULP co-processor is turned on. Therefore, the data will be lost which was not initially present in the RTC recovery memory. All the digital peripherals, most of the RAM, and the CPU is powered off.īecause only the RTC module is active.
#Esp deepsleep Bluetooth#
Peripherals and Units Active Units ULP Co-processor ON/OFF RTC & RTC Peripherals ON ESP32 Core & Memory OFF Wi-Fi OFF Bluetooth OFF Peripherals OFF Radio OFFĪs shown in the above table, during the deep sleep mode only the RTC (real-time clock) controller, RTC peripherals, and RTC memories are in active mode. The table below shows the individual active units in ESP32 when it is set in deep sleep. When we have successfully activated deep sleep in ESP32, the current consumption would be in the range of micro Amperes (μA) and batteries will also last longer. We can put the module into a deep sleep mode to reduce power consumption. Thus, if you are powering your ESP boards using batteries, it is not very convenient to use ESP32 in active mode when we want to perform some events after some specific duration only.
Generally, the module is very power-hungry and may pull up 75mA in normal consumption or inactive mode.īut if WiFi is being used as well then the current consumption can go up to 240mA. To reduce power consumption and save battery life, deep sleep mode is implemented in ESP32. To see how these modes are useful in different applications, you can compare the power consumption of different operating modes listed in the table below: What is Deep Sleep in ESP32?
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