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You can use below format.

Always test if the scheduled task is working as intended when you run it manually (Scheduled Tasks - right click your task and Run it). When that works, move on to test if it works as intended when you start up the computer (or whenever, depending on the trigger).

When I imported your task with through cmd with the SYSTEM user account, the default setting was "Run whether user is logged on or not". If I tried to run it manually, the script wouldn't start. I then changed the user to my account, changed the option to "Run only when the user is logged on", and that fixed the problem for me (many times before, as well). I wasn't able to change this option when using the SYSTEM user.

And at last, I did it without using any serial UART. All wireless. So, My architecture consists of 3 ESP-01 and 1 NodeMcu ESP 12E. where 2 ESP-01 acts as a client. One ESP01 acts as a moderator and NodeMcu as a server. I have made the following approach-

1. The clients will first send a message containing sensor data to the moderator as a JSON
2. The moderator will receive these message form clients. Thers can be n number of clients. The moderator will then send these message to NodeMcu which functions as a server
3. The server will only receive the messages that were broadcast by the moderator. The server will then parse the JSON received from the moderator and extract all the sensor data
4. you can do this operation in one loop.and the following part is done on another loop
5. connect to wiFi and post data to cloud

You can refer this LINK

You would need to use join() on both threads.

As per the official documentation:

The join method allows one thread to wait for the completion of another. If t is a Thread object whose thread is currently executing, t.join() causes the current thread to pause execution until t's thread terminates.

Although sed is useful for pattern matching, it may not be suitable for value comparison. AWK will be better in this sense.
A common method for time comparison is to convert the date string into seconds since the epoch. But it will be more practical just to merge date and time into a single number, for instance, converting "Feb 28 22:10:48 2018" into "20180228221048". Here is the example:

Here is how you could do this, Do not inject the service in the constructor instead do that in your function body. Here you would also not run into the issues like maximum call reached.

If i'm understanding the question correctly, you could use a conditional on some tasks that relies on a variable set at the command line, with a default value that will fail the conditional check.

in scratch.yml:

Change:

I assume that you didn't explicitly put your mapping and just started adding documents to your index. Try to create a new index like this