Sonoff S20 / S26

[goosst]

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Dear,

Thanks a lot for this branch and hard work. Is it possible to provide some guidance if it makes sense to implement deepsleep on the S20/S26 sonoff devices?

• Is it useful to implement this on the S20/S26? Or are the remainder of the losses (after using the "light sleep") mainly in the powersupply anyway?
• from the wiki I get:

  and that for a wakeup as always you have to connect the RST pin with the D0/GPIO16 pin because the wake-up signal is sent through D0/GPIO16 to RST

Is this accessible on the S20/S26 devices? Most of the examples using this branch seem to be using the wemos devices.

(Please, remember to close the issue when the problem has been addressed)

[stefanbode]

It should work, because these two pins are available. But maybe hard do wire and solder these together. I have no S20 to my hand to check it, but maybe you have some luck with google. From my point of view this is for sure only a hardware topic. One question: deepsleep only is required and make sense on Batterie powered systems. Therefore I do not see a use-case on the S20.

[goosst]

Thanks for the feedback.

One question: deepsleep only is required and make sense on Batterie powered systems. Therefore I do not see a use-case on the S20.

As use-case: I only use the device as an advanced timer, I'm currently not using MQTT and other features. Looking at the reported numbers here https://github.com/arendst/Sonoff-Tasmota/wiki/Energy-Saving, one device plugged in for entire day (24*0.51=12Wh) is approximately equal to charging an extra mobile phone every day ... . So I would have hoped with your version of the software (and a reasonable hardware hack) this could be improved quite a bit.

[stefanbode]

hi @goosst , the power consumption is about 0.1A at 5V compared to a phone that uses 1-2A at 5V. Therefore up to 20x more. Therefore the TASMOTA will use a day the same as the smartphone uses for 1h during charge. If you calculate this for a year it is 0.5W 24h 365 = 4.2kWh ~ 1.5€ / year.

You can invest time, but this really does not make a big change.