ESP32 wake up time and low power consumption

l3uri1993
Posts: 3
Joined: Fri May 25, 2018 6:18 am

ESP32 wake up time and low power consumption

Postby l3uri1993 » Fri May 25, 2018 6:25 am

Hello,
I would like to develop a low power consumption application.
My application goes into deep-sleep mode and is woken up by activating an RTC timer. I have measured that the wake up time is around 160 ms and it is too much for my application. I think this time is due to the boot of free rtos, but I'm not sure.Is it possible to reduce this time considerably?
In addition, what are the parameters to set to lower power consumption to a minimum?

Thank you very much. ;)

WiFive
Posts: 3529
Joined: Tue Dec 01, 2015 7:35 am

Re: ESP32 wake up time and low power consumption

Postby WiFive » Fri May 25, 2018 9:36 am

It depends what you want to do when you wake up. Look at wake stubs and ulp coprocessor programs.

l3uri1993
Posts: 3
Joined: Fri May 25, 2018 6:18 am

Re: ESP32 wake up time and low power consumption

Postby l3uri1993 » Fri May 25, 2018 9:53 am

When I wake up, I want to send a packet with ESPNOW protocol with Wifi. I can't use ULP for this stuff. I have to wake up from deep sleep and and send a message...

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