ESP8266 Community Forum

- Fri Sep 02, 2022 5:45 pm #95202 Hello, I been trying to figure out how much power does it take to run just the Esp32-c3-wroom-02 without bluetooth and wifi just the processor by it-self. Also with the bluetooth. I'm working on my own version of a smart watch. I'm learning about the light sleep and deep sleep states. It is very confusing coming from a hardware background not much on software but I'm learning.

I searched online and saw many different search pages telling what the power consumption is for full wifi and bluetooth. But not just for the processor by it-self without the wifi or bluetooth on it. I sometimes just want only the processor by it-self or the processor and bluetooth. But I will not use the wifi. That is the next thing I'm trying to learn how to disable it. From what i'm reading it still draw a good amount of power even in a standby state.

Can someone please help me to figure out what type of current does the processor by it-self take and what does the processor and bluetooth take please?

Joseph

P.s.s I'm very bad at reading datasheets trying to understand it. I know I have a lot to learn.

- Sat Sep 03, 2022 6:34 am #95206 As far as I know from other tutorials, ESP32 in deep sleep consumes 10uA. In light sleep it consumes 0.8mA. In both of these modes, bluetooth and wifi are turned off.

- Sat Sep 03, 2022 7:25 am #95208 Hello, do you know how much current does the processor take by it-self? Is there a light sleep for the esp32? I found deep sleep. Thank you for the reply back.

As far as I know from other tutorials, ESP32 in deep sleep consumes 10uA. In light sleep it consumes 0.8mA. In both of these modes, bluetooth and wifi are turned off.

- Sun Sep 04, 2022 6:01 am #95211 "ESP32-C3 contains the following power saving modes: Light-sleep, and Deep-sleep." You will find this information here: https://docs.espressif.com/projects/esp ... modes.html

I took the info about power consumption from here: https://lastminuteengineers.com/esp32-s ... nsumption/

I think, if you write equations for all the different modes, you will be able to figure out how much the ESP-32 core processor alone consumes.