How to make delays ?

[espruino-discuss2]

Posted at 2023-10-26 by Jaeth

I'm trying to make a compass that tells the user it's heading through vibration patterns ( one for each cardinal direction ). Thing is, I need to make the reading THEN send the vibration pattern some time after, because the magnetometer goes crazy when trying to read while the vibrator is on.
So, how can I make it so that it does something like "read heading, wait 0.3s then send vibration" ?

[espruino-discuss2]

Posted at 2023-10-26 by rigrigrig

You can use setTimeout:

read_heading();
setTimeout(send_vibration, 300); // No brackets() after send_vibration!

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Posted at 2023-10-26 by @thyttan

Best is maybe to use a promise. You could probably do with setTimeout as well.

rigrig beat me to it!

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Posted at 2023-10-26 by Jaeth

Okay, yeah, setTimeout sounds good ! How can I make it so that the reading only happen once every X seconds, too ? Wouldn't setTimeout make it run in loop and do the reading of the loop X seconds back ?

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Posted at 2023-10-26 by @fanoush

setInterval