Clear Serial Monitor Arduino
- [Instructor] And now we are going to use…the same previous Blink program…and see some output using a Serial Monitor.…The first thing is…to initialize the Serial Monitor portrait…at 9600,…so I'll go ahead in the void setup function.…Now in order to show some output…showing the Serial Monitor,…I'm going to declare a variable named counter,…and the value associated with it is zero.…
So I'm going to go ahead outside the void setup function…equals zero,…note here this is not a pin zero,…we're just simply initializing the counter…to start from zero.…Now, in the void loop function,…I'm going to go ahead…and set the counter to add one every time it repeats itself.…So counter equals counter plus one.…So I'm going to add a comment,…just say adding one…everytime it loops.…
This part of the Arduino programming course shows how to get data into an Arduino sketch from the serial port. Data can be sent to the Arduino from the Serial Monitor window in the Arduino IDE. A user can enter data in the input field in the serial monitor window to send values and data to the Arduino.
You should also have a look at How to do Arduino Serial communication, because in that tutorial, I have combined all Arduino Serial Projects. Anyways, let’s get started with How to use Arduino Serial Flush: How to use Arduino Serial Flush? Arduino Serial Flush is used to flush the data send through Arduino Serially. Hi everybody, I'm working C# and Arduino at now. I want to send two or more data from textboxes in C# form app. To serial monitor. But my serial port read only first number and other numbers was not seen. I searched some to clear first name after when serial port read. But I didn't find anything for my aim.
So I'm going to use the Serial.print function…in order to output a sentence…on the next line.…Serial.print,…and I'll use a quotation mark,…I'll say Blink Number,…I'll use the number sign, space, and the quotation mark…and close the bracket.…In the next line, I'll print the value of the counter.…
I'm reading data from 9 different sensors for my robot and I need to display them all steadily, in the same window so I can compare the values and see if any of the readings is off.
The problem I'm having with both Serial.print and lcd.print is that the values are constantly moving and I can't really have a good look at them while moving the robot.
I was thinking to call something like Serial.clear() before displaying anything else and that would just keep things steady and in one place, changing only the values.
From what I found so far, Serial.print(17,BYTE) for instance is no longer supported (Calling the ESC key).
So..for those with a bit more Arduino experience..what is the proper way to do this?
EugenEugen15 Answers
The Arduino serial monitor isn't a regular terminal so its not possible to clear the screen using standard terminal commands. I suggest using an actual terminal emulator, like Putty.
The command for clearing a terminal screen is ESC[2J
To accomplish in Arduino code:
Source:
http://www.instructables.com/id/A-Wirelessly-Controlled-Arduino-Powered-Message-B/step6/Useful-Code-Explained-Clearing-a-Serial-Terminal/
There is no way to clear the screen but, a really easy way to fake it can be printing as much Serial.println(); as you need to keep all the old data out of the screen.
I have found that ASCII 12 make a Form feed, that is a new page. here is a wikipedia definition
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'Form feed is a page-breaking ASCII control character. It forces the printer to eject the current page and to continue printing at the top of another'
The code is
Arduino Terminate doesn't support the character but Putty a light open source telnet client can do it
An Example of the code
You could try:
Which will provide a carriage return, returning to the start of the line every iteration - which should do what you're chasing? (Especially if everything is fixed width).
durron597Found a stupidly simple way to fix this issue. Just resize the terminal window to only 1 line high and it will be a lot easier to read!
the best way I can think of is using processing there are a few introductions on the net like displaying serial data, arduino graph and arduino radar
Since Arduino is based on processing its not that hard to learn
ESC is the character _2_7, not _1_7. You can also try decimal 12 (aka. FF, form feed).
Note that all these special characters are not handled by the Arduino but by the program on the receiving side. So a standard Unix terminal (xterm, gnome-terminal, kterm, ..) handles a different set of control sequences then say a Windows terminal program like HTerm.
Therefore you should specify what program you are using exactly for display. After that it is possible to tell you what control characters and control sequences are usable.
A.H.A.H.It's not possible to clear the Serial Monitor window based on incoming serial data.
I can think of a couple of options, the simplest (and cheatiest) is to use println() with a fixed width string that you've generated that contains your sensor data.
The Arduino IDE's Serial Monitor's Autoscroll checkbox means if you persistently send the fixed width string (with 500ms delay perhaps) this will give the impression that it's updating once it gets to the bottom and starts scrolling. You could also shrink the height of the window to make it look like it only has one line.
To accomplish a fixed width string that's suitable for serial println() you'll need functions to convert your sensor values to strings, as well as pad/trim them to a persistent size. Then concatenate the values together (including separators if it makes the data easier to read)
An output of something similar to this is what i'm hinting at:
All things considered, this isn't a great solution but it would get you a result.
A far smarter idea is to build another program outside of Arduino and it's IDE that listens to the com port for sensor values sent from the Arduino. Your Arduino program will need to send a message your external program can unambiguously interpret, something like 1=0.5; where 1 = sensor ID and 0.5 = sensor value. The external program would then keep these values (1 for each sensor). The external program can then display this information in whatever way you'd like, a nice console output would be relatively easy to achieve :-)
C# has .NET's serialport class which is a pleasure to use. (most of the time!)
Python has a module called pyserial, which is also easy great.
Either language will give you much greater control over console output, should you choose to proceed this way.
jonjonIf you change baudrate for example back and forth it clears the Serial Monitor window in version 1.5.3 of Arduino IDE for Intel Galileo development
imprime en linea los datos con un espaciado determinado, así tendrás columnas de datos de la misma variable y será más claro
Print all data in line, so you have rows with the data you need, i just solve the same problem like this, just make sur you had asignad a constant data size and spacement between, I made this
If one of you guys are using virtual terminal in proteus and want to clear it just add Serial.write(0x0C);and it gonna work fine
I made this simple function to achieve this:
It works well for me in the default terminal