ishwarsharma
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Joined: Tue Jun 18, 2019 9:40 am

Raspberry Pi Zero W board - Deep Sleep Mode configuration and wake up

Tue Jun 18, 2019 12:55 pm

We need to configure Raspberry Pi Zero W board in deep sleep mode to consume ultra low power for battery operated environment and wake up of board through UART/GPIO event. Can anyone give any idea of configuring the Raspberry Pi Zero W board for same requirement and How much current it will draw from 5V power rail in such condition (Deep Sleep mode).

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davidcoton
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Re: Raspberry Pi Zero W board - Deep Sleep Mode configuration and wake up

Tue Jun 18, 2019 5:08 pm

There is no "deep sleep" mode. You can shut it down, and leave the power connected, so that grounding a specific GPIO will restart it, but IIRC the power draw is still high for battery use. The other option is to use external hardware to shut off the power, and then reaplly it when needed. There are commercial solutions (pHATs) for this.
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wh7qq
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Re: Raspberry Pi Zero W board - Deep Sleep Mode configuration and wake up

Tue Jun 18, 2019 6:30 pm

The WittyPi Mini or WittyPi 2 from uugear.com might just fill your bill.

W. H. Heydt
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Re: Raspberry Pi Zero W board - Deep Sleep Mode configuration and wake up

Tue Jun 18, 2019 6:42 pm

davidcoton wrote:
Tue Jun 18, 2019 5:08 pm
There is no "deep sleep" mode. You can shut it down, and leave the power connected, so that grounding a specific GPIO will restart it, but IIRC the power draw is still high for battery use. The other option is to use external hardware to shut off the power, and then reaplly it when needed. There are commercial solutions (pHATs) for this.
It's probably worth noting (for the benefit of the OP) that if you shut down a Pi, whether or not you go so far as to disconnect the power, when it is reactivated, it will have to reboot the OS. It's very much NOT like a system with the OS resident in RAM "waking up".

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