Version 018 print precision

Forum 2005-2010 (read only) General Frequently-Asked Questions
1

Hello All, I remember a few months ago I was so happy with 018 release because it added the ability to add decimals after the print command - It was easy to print .1; .01; or even .001

Was I dreaming? I have searched the forum, AND looked at the changes in 018 and didn't find this listed anywhere.....

Darn if I can remember how this was done - not even some samples of code I've done shows me anything. Was I just dreaming?

Thanks for any help.

Ken H>

2

See the last three examples listed below.

From: Serial.print() - Arduino Reference

For floating point numbers, this parameter specifies the number of decimal places to use. For example:

?Serial.print(78, BYTE) gives "N"
?Serial.print(78, BIN) gives "1001110"
?Serial.print(78, OCT) gives "116"
?Serial.print(78, DEC) gives "78"
?Serial.print(78, HEX) gives "4E"
?Serial.println(1.23456, 0) gives "1"
?Serial.println(1.23456, 2) gives "1.23"
?Serial.println(1.23456, 4) gives "1.2346"

3

That's it!! Darn I couldn't remember - and I found that page, I just didn't pick up on it with all the serial.Print..... I am using lcd.Print.

lcd.print ("volts = ");
lcd.print(volt, 2); to get "volts = 3.32"

Thanks for the help.

Ken H.