As ADezii says, CDate() is what you need to convert a string in date format into a date. Dates are stored as numbers anyway, so how you use that is down to you (in your code). Dates are stored as numbers anyway, so how you use that is down to you (in your code). Excel turns dates into serial numbers for easier calculations. The following formulas convert the serial number to the weekday, month, year, hour, minutes, and seconds.
Active2 years, 7 months ago
I'm using two Arduinos to sent plain text strings to each other using newsoftserial and an RF transceiver.
Convert String to Number and String in ABAP: Find here the different methods to convert String variable into Number, Quantity or Amount in SAP ABAP with sample code or SAP standard function template making easing to convert string.
Each string is perhaps 20-30 characters in length. How do I convert Peter Mortensen
Serial.read() into a string so I can do if x 'testing statements' , etc.?
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JoeJoe
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15 AnswersPeter Mortensen
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magmamagma
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user1415516user1415516
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You can use
Serial.readString() and Serial.readStringUntil() to parse strings from Serial on the Arduino.
You can also use
Serial.parseInt() to read integer values from serial.
The value to send over serial would be Piccolo
my stringn5 and the result would be str = 'my string' and x = 5
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Ihab HajjIhab Hajj
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I was asking the same question myself and after some research I found something like that.
It works like a charm for me. I use it to remote control my Arduino.
ladislasladislas
mrvmrv
The best and most intuitive way is to use serialEvent() callback Arduino defines along with loop() and setup().
I've built a small library a while back that handles message reception, but never had time to opensource it.This library receives n terminated lines that represent a command and arbitrary payload, space-separated.You can tweak it to use your own protocol easily.
First of all, a library, SerialReciever.h:
To use it, in your project do this:
To use the received commands:
BlazerBlazer
If you want to read messages from the serial port and you need to deal with every single message separately I suggest separating messages into parts using a separator like this:
This way you will get a single message every time you use the function.
QurashiQurashi
Here is a more robust implementation that handles abnormal input and race conditions.
It deliberately uses character arrays instead of the
String type, to be more efficient and to avoid memory problems. It also avoids using the readStringUntil() function, to not timeout before the input arrives.
The original question did not say how the variable length strings are defined, but I'll assume they are terminated by a single newline character - which turns this into a line reading problem.
Here is an example of it being used to read commands from the serial monitor:
HoylenHoylen
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flamaniacflamaniac
If you're using concatenate method then don't forget to trim the string if you're working with if else method.
Sandy
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user3528736user3528736
Use string append operator on the serial.read(). It works better than string.concat()
After you are done saving the stream in a string(mystring, in this case), use SubString functions to extract what you are looking for.
SaroshSarosh
Credit for this goes to magma. Great answer, but here it is using c++ style strings instead of c style strings. Some users may find that easier.
j_v_wow_dj_v_wow_d
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Many great answers, here is my 2 cents with exact functionality as requested in the question.
Plus it should be a bit easier to read and debug.
Code is tested up to 128 chars of input.
Tested on Arduino uno r3 (Arduino IDE 1.6.8)
Functionality:
Commands:
Note: Remember to change baud rate based on your board speed.
ZunairZunair
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TheJonaMrTheJonaMr
protected by Community♦Jan 22 '17 at 19:13
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Active1 year ago
I am trying to create a basic licensing system where I take a unique ID from the client computer, and I get this Hexadecimal string (hyphens removed e.g. '84-18-CE-....'):
'8418CFEE73FA22E6AB0760C73A496497C6C347DA88A9F63B95FE1E1D6A350AA1D7D3A9EE870795AECC3C109AA8B4A78C'
It's only encoded into this format to make the ID longer.
Basically what I've been trying to do (without success), is to create some routine that can transform this string into a 25-character long (minus the dashes) string like the one below:
'H8G02-J8293-L02O9-S920Q-F8D9X'
(An alpha-numeric key with numbers or letters in no particular pattern, preferably letter,number, letter or vice versa)
I just can't figure out how I could then validate this key, so that I could extract the untransformed Hex string we began with.
SolaGratia
SolaGratiaSolaGratia
1 Answer
Convert the hexadecimal number to base 36. Example here.
Convert A Sting Into A Serial Keyboard
According to that page, Your input yields
1DWCLWKQZK16WMKIIEYVLLXA9E4OQ64P80KDOH4ALCYRCYCTKRUHQRXTM6HLDEV78E6APXQV1JG
in base 36.
Here is a Stack Overflow question that has an arbitrary base conversion function in c# (alas, couldn't get the online converter to properly convert it to VB). You can see it in action here: http://ideone.com/nDun6s
Convert A String Into A Serial Key
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Robert Harvey
Convert A Sting Into A Serial Keys♦Robert Harvey
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