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lew247

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Joined: 23/12/2015
Location: United Kingdom
Posts: 1702

Posted: 11:00pm 24 May 2016

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IF I want to say send measurements from a direction sensor in degrees
HOW can I code it so there is always 3 digits?
ie 9 degrees and under reads 009
10 and over reads 010
and 100 and over reads 100
I need it so it's always sending 3 digits with 0's under 99

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10213

Posted: 11:16pm 24 May 2016

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right$(str$(direction+1000),3)

MicroBlocks

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Joined: 12/05/2012
Location: Thailand
Posts: 2209

Posted: 11:20pm 24 May 2016

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Manual page 78.

[code]
STR$(Direction, 3, 0, "0")
[/code]

test some numbers:
[code]
STR$(9, 3, 0, "0")
STR$(10, 3, 0, "0")
STR$(100, 3, 0, "0")
[/code]Edited by MicroBlocks 2016-05-26

Microblocks. Build with logic.

lew247

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Joined: 23/12/2015
Location: United Kingdom
Posts: 1702

Posted: 11:23pm 24 May 2016

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Thanks everyone

lew247

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Joined: 23/12/2015
Location: United Kingdom
Posts: 1702

Posted: 07:40am 27 Jun 2016

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I've been reading the manual about this and I'm totally confused
I understand that if I want to print a number it can be a certain number of digits before or after the decimal point

but what do you do when you want to print the value of a "label"?

for instance in the wind speed program I'm trying to sort out

wSpeed=(windfactor*reading)/(testpause/1000)

I can do this

PRINT wSpeed "" and it will print the speed, but how can I tell it that I only want it to 2 decimal places?

OR how can I limit wSpeed to 2 decimal places?
Edited by lew247 2016-06-28

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10213

Posted: 08:03am 27 Jun 2016

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Same as above - use STR$

print STR$(wSpeed,3,2)

If you wanted to actually adjust the number you could use

wSpeed= CINT(wSpeed*100)/100.0

lew247

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Joined: 23/12/2015
Location: United Kingdom
Posts: 1702

Posted: 08:25am 27 Jun 2016

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Thanks
Got it working with everything apart from bme280_read_humidity but I can live with that

Edited by lew247 2016-06-28

lew247

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Joined: 23/12/2015
Location: United Kingdom
Posts: 1702

Posted: 09:01am 27 Jun 2016

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Thanks Peter, works great

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