Utilize SDS0X1 'Working Period' command

[edelstahlratte]

It has the advantage of offloading the sleep/wake/read-cycle management to the SDS0X1 sensor.

The sensor will wake up every x minutes and take a reading by itself.
On request the sensor reports the last valid reading without waking up...

[FabianHM]

Helo,
thanks for the good Idea with 5 Minutes Sleep.
I would like to change the interval of default 5 minutes. Unfortunately, the comand "WORKING_PERIOD" does not work. (MQT: stat/sonoff/RESULT = {"Command":"Unknown"})
How can I change the interval without recompiling?
Thanks for help,
Greetings Fabian

[arendst]

Only by re-compiling. To what value would you like it to be set?

[edelstahlratte]

Like @arendst said: you have to compile again...

[FabianHM]

Okay, thanks for fast feedback.
I think for my needs it's about every 15 minutes. I'll try compiling it the next time.

[tobox]

Whats the current status of this? I have just compiled the development branch (Sonoff-Tasmota 6.3.0.17) and connected a SDS011, and the sensor seems to send readings continuously:

23:34:03 HTP: Main Menu
23:34:06 SER: Received AA C0 2D 00 57 00 1D 76 17 AB
23:34:09 SER: Received AA C0 2D 00 57 00 1D 76 17 AB
23:34:12 SER: Received AA C0 2D 00 57 00 1D 76 17 AB
23:34:15 SER: Received AA C0 2D 00 57 00 1D 76 17 AB
23:34:18 SER: Received AA C0 2D 00 57 00 1D 76 17 AB
23:34:21 SER: Received AA C0 2D 00 57 00 1D 76 17 AB

The values are plausible, but I am worried about the sensor lifetime. My other dust sensor (running luftdaten.info firmware) seems to be blinking only every few minutes, while it is blinking every few seconds with tasmota.

[tobox]

Well... Maybe it is working correctly, and the LED is just blinking for serial activity. The sensor seems to shut down properly, the fan is off most of the time. Maybe I was just to impatient after startup.

[ascillato]

Whats the current status of this?

The status is that this feature is merged into Tasmota since 10 sep 2018 and working fine.

You can "tune" the working period from my_user_config.h file in the line:

#define WORKING_PERIOD 5 // Working period of the SDS Sensor, Takes a reading every X Minutes