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Arduino Clear Serial



Now that you have installed the latest version of the Arduino IDE(1.6.7 or above) its time to understand how the Serial Plotter actually works. The Arduino Serial Plotter takes incoming serial data values over the USB connection and is able to graph the data along the X/Y axis, beyond just seeing numbers being spit out on to the Serial Monitor. The vertical Y-axis auto adjusts itself as the value of the output increases or decreases, and the X-axis is a fixed 500 point axis with each tick of the axis equal to an executed Serial.println() command. In other words the plot is updated along the X-axis every time the Serial.println() is updated with a new value.

Remember to set the Baud Rate of the Serial Plotter so that it matches that of the code.

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Basic Arduino example code for I2C LCD. You can upload the following example code to the Arduino using the Arduino IDE. For this tutorial, I used this 20×4 I2C character LCD display, but you can use other I2C LCDs of different sizes as well.

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Multiple Plots

When displaying multiple waveforms, every separate variable/value/parameter is displayed using a different colour like shown below.

Arduino Serial Clear Incoming Buffer

Inorder to plot multiple variables or waveforms simultaneously a 'space' is printed between the two print statements.

OR

In this case the values of the variables 'temperature & humidity will have separate waveforms plotted on the same graph simultaneously.

Active7 months ago

I'm using serial communication to display the the data to my 4x20 lcd display. When I filled up all the lines of course I need to clear it. I've search over the net and found something like:

But it doesn't work. I also found a solution like Serial.println(); but that solution (cheat as they called it) will only work on a serial monitor. So is there any possible solution to clear the display or delete a single character from the LCD?

Michael Petrotta
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NewInJavaNewInJava

4 Answers

Did you try lcd.clear()? It says in the documentation here that this command does the following: Microeconomics pdf download.

Clears the LCD screen and positions the cursor in the upper-left corner.

Obviously, you'll need the lcd variable (known as a LiquidCrystal object) to use this method. See how to create that here and a basic implementation below. Perhaps you can add a time delay after lcd.print('hello, world!'); and then add lcd.clear(); (just as a basic proof-of-concept.)

Review the full LiquidCrystal reference for all its methods and additional examples.

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Cleargary

Arduino Clear Serial Write Buffer

gary
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I found a quick solution for my problem

for (int i=0; i < 80; i++) { Serial.write(8); // print 80 times forward (BS)}

if you have larger display just increase the value of the loop. As my observation in the serial monitor The cursor pushes forward until the line is clear (based on your loop). Does tmobile give free spotify premium. but this will not allow you to delete a single character in your display.

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Did you try sending 12 (0x0C) as detailed in this Arduino Playground 0 SerialLCD posting https://proxiltueras.tistory.com/13.

see above link for other commands.

mpflagampflaga
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The best way I find is to simply add the following line to your sketch:

This will make the lcd display clear out.

Arduino Clear SerialSerial
Michael MulveyMichael Mulvey

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