Methods to Regulate X and Y Axis Scale in Arduino Serial Plotter (No Further Software program Wanted) – Open Electronics

The Serial Plotter in Arduino is a superb instrument for rapidly visualizing serial knowledge. Nevertheless, it has a limitation that may frustrate many customers: it’s not instantly apparent how one can modify the X and Y axis scales, particularly the X axis. On this article, I’ll information you step-by-step on how one can remedy this challenge with out the necessity for added software program like Python or Processing.

https://www.youtube.com/watch?v=WtOd8tsrJbs

Why Adjusting the Scale Is Necessary

Within the newest model of the Arduino IDE (from model 2 onwards), the X-axis has a shifting scale that solely reveals 50 knowledge factors, whereas the Y-axis is dynamic, adapting to the minimal and most values of the final 50 factors. This will make knowledge interpretation tough, particularly in case you’re monitoring a secure sign similar to a sine wave.
You may do this code to expertise the visualization challenges:

float t; float y;
void setup() { Serial.start(115200); }

void loop() { t = micros() / 1.0e6; y = sin(2PIt); Serial.println(y); }

Steps to Modify the Axis Scales

1. Stabilize the Y-Axis

To maintain the Y-axis fixed, you may add horizontal strains close to the specified minimal and most values. Right here’s how one can do it:

float t; float y;
void setup() { Serial.start(115200); }

void loop() { t = micros() / 1.0e6; y = sin(2PIt); Serial.print("1.1, "); Serial.print("-1.1, "); Serial.println(y); }

2. Enhance the X-Axis Scale

To switch the X-axis scale and show greater than 50 knowledge factors, that you must edit a JavaScript file inside the Arduino IDE. Right here’s how one can proceed:

a. Find the JavaScript File

1. Entry the Program Information: Go to the folder the place the Arduino IDE is put in.
2. Navigate the Path: Observe this path: Sources > App > Lib > Backend > Sources > Arduino Serial Plotter Net App > Static > JS [C:Program FilesArduino IDEresourcesapplibbackendresourcesarduino-serial-plotter-webappstaticjs].
   • If the trail doesn’t match, search the IDE folder utilizing the key phrase “plotter”.

b. Edit the essential.35ae02cb.chunk.js File

1. Create a Backup Copy: Copy the file essential.35ae02cb.chunk.js to the desktop for security.
2. Open the File in a Textual content Editor: Use an editor like WordPad or VS Code.
3. Discover the Line to Edit: Seek for useState)(50).
4. Modify the Worth: Change 50 to the specified variety of knowledge factors. For instance, to extend it to 3000:
5. Save and Overwrite the Unique File: Save the modifications and duplicate the modified file again to the unique folder, changing the prevailing file. It’s possible you’ll have to grant the required permissions.

3. Confirm the Modifications

• Reopen the Serial Plotter: After saving the modifications, open the Arduino Serial Plotter once more.
• Test the New Scale: The X-axis ought to now show as much as 3000 knowledge factors.

4. Be Conscious of Limits

It’s essential to notice that there’s a restrict to the X-axis measurement, relying on the quantity of information you’re sending. When you set a worth too excessive, you may discover that the plotter can’t show all of the factors. For instance, setting the X-axis to 5000 could trigger the plotter to cease between 3000 and 4000 factors on account of knowledge overload.

Conclusion

Adjusting the axis scales within the Arduino Serial Plotter can considerably enhance your knowledge visualization expertise. By following the steps outlined above, you may stabilize the Y-axis and improve the X-axis scale, making it simpler to investigate your indicators. When you desire a extra superior answer, think about using Python for an much more custom-made visualization.
Completely happy working in your Arduino initiatives!